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Operator
Good afternoon. At this time, I'd like to welcome everyone to the Diodes Inc. fourth quarter and 2006 fiscal earnings conference call. All lines have been placed on mute to prevent any background noise. After the speakers' remarks, there will be a question-and-answer session. (OPERATOR INSTRUCTIONS).
I would now like to turn the call over to Mr. Crocker Coulson. Please go ahead, Sir.
Crocker Coulson - IR
Thanks a lot. Good afternoon, everybody, and welcome to Diodes' fourth quarter 2006 earnings call. Joining us today are the Company's President and CEO, Dr. Keh-Shew Lu. We also have Diodes' Chief Financial Officer, Carl Wertz; Senior VP of Sales and Marketing, Mark King; and Senior VP of Finance, Richard White.
Before I turn this call over to Dr. Lu I would like to remind our listeners that, in this call, management's prepared remarks may contain some forward-looking statements that are subject to risks and uncertainties. And the management may make some additional forward-looking statements in response to your questions on this call.
So therefore Diodes claims the protection of the Safe Harbor for forward-looking statements that's contained in the Private Securities Litigation Reform Act of 1995. Actual results may differ from those discussed today and, therefore, we would like to refer you to a more detailed discussion of these risks and uncertainties that are contained in the Company's filings with the SEC.
In addition any projections as to the Company's future performance represent management's estimates as of today, February 6, 2007. Diodes assumes no obligation to update these projections in the future whether due to changing market conditions or otherwise.
For those of you who are unable to listen to the entire call at this time we are going to make a recording available via webcast. You can find that for 60 days at the Investor Relations section of Diodes' web site.
With those formalities out of the way, now, it is my pleasure to turn the call over to Diodes' CEO, Dr. Keh-Shew Lu.
Keh-Shew Lu - President and CEO
Thank you, Crocker. Welcome everyone and thank you for joining us today. We are pleased to report a solid fourth quarter (technical difficulties) another year of outstanding performance for Diodes. During 2006, we strengthened our market position in the discrete semiconductor market; successfully entered the (indiscernible) semiconductor segment. Launched a [greater] number of new innovative products, expanded our global reach and we delivered solid results for our shareholders.
Or $1.74 per share and for full (indiscernible) income, increasing 60% to $53.0 million or $1.89 per share.
Despite a more difficult operating environment in the fourth quarter 2006, Diodes delivered solid results to finish another year of strong growth in the profitability. We continue to outperform the overall market, and to take share in the discrete (indiscernible) space.
Our performance reflects our customers' acceptance of our expanded product line, and our (indiscernible) confidence in Diodes' strategic direction. In 2006 Diodes achieved profitable growth through customer focused innovation in the discrete (indiscernible) markets, delivering greater variety to both of our customers and to our shareholders.
We have broadened our product focus to include (indiscernible) adjacent to our discrete [vigilance]. We completed important acquisitions that expand and strengthen our market position and our technology capabilities that (indiscernible) was successfully integrated during 2006 and has produced results that exceeded our initial expectations.
The APD integration is almost completed and has already yielded results in the form of the SBR PowerDI 123 productline product launch. This is the first of many [branded] SBR product introductions offering breakthrough performance, not attainable with traditional Schottky technology. We strengthened our focus on R&D for next-generation technology. We released a number of new innovative products during the past year, designed to meet the growing demand for higher efficiency and a smaller (indiscernible) factor in the fast-growing end market.
Our new design centers in San Jose, Paris, Taipei and Shanghai provide Diodes an innovation engine to power huger product launches and new technology in the discrete analog and mixed signal areas.
And finally we strengthened our balance sheet with the issuance of $230 million convertible notes. This positions Diodes to seek additional corporate growth opportunities to accelerate our profitable growth. As of December 31st, 2006, Diodes had $340 million in cash and short-term investments, and $396 million in working capital.
We are actively evaluating acquisition candidates within our target market segments that fit our criteria.
Looking forward to 2007, we expect to continue to build on our strength as we benefit from synergies between our discrete and adjacent analog segments and continue to focus on customer-centric innovation and efficient manufacturing to deliver profitable growth.
With that, I am going to turn the call over to Carl to discuss our financial results in more detail.
Carl Wertz - Chief Financial Officer
Thanks, Dr. Lu. Good afternoon everyone. As Dr. Lu mentioned, Diodes again achieved record financial results in the fourth quarter and for the fiscal year 2006. Despite a more challenging market environment in the fourth quarter, revenues and profits increased considerably on a year-over-year basis, setting new records for Diodes.
Revenues for the fourth quarter were $94.4 million, an increase of 53.9% from the fourth quarter of 2005. On a sequential basis, our revenues grew 2%, the midpoint of our guidance range. New product sales advanced to a record 33.5% of revenue, compared to 29.7 just one quarter ago.
Gross profit for the fourth quarter increased 47.4% at $31.5 million compared to the same period last year. This increase in gross profit was due to the improved product mix and increased sales volume.
Gross margin was up 20 basis point sequentially at 33.4% as compared to 33.2 last quarter. Over the course of 2007 we see opportunities for margin expansion as we transition production from the currently outsourced packaging to our state-of-the-art facilities and we continue to introduce new products.
Selling, general, and administrative expenses for the quarter were $13.1 million or 13.8% of revenue, including fourth quarter SGA& expenses were $1.3 million with non cash share-based compensation as per FAS 123R. For comparable purposes, excluding the share-based compensation, SG&A for the fourth quarter of 2006, would have improved further to 12.5% of sales. In our earnings release we have included a table to reconcile the impact of share-based compensation expense to our reported results.
Research and development investment in the quarter was $2.3 million or 2.5% of revenue compared to $1 million or 1.7% of revenue in the fourth quarter 2005. We continue to enhance our research development capabilities to support our broader market focus and profitable growth objectives.
Depreciation was $7 million for the quarter and $21.1 million for the year. EBITDA for the quarter was $22.9 million and $75.8 million for the year. Our effective income tax rate in the fourth quarter was 20.5% compared to 19.7% for the previous quarter and 16.6% for the same period last year.
Going forward, we anticipate our consolidated tax rate to be approximately 20%. Pro forma net income for the fourth quarter which excludes the 1.1 million net stock option expense increased 57.2% year-over-year to $15.8 million or $0.56 per diluted share compared to $10 million or $0.36 per share in the comparable period 2005.
GAAP net income increased 14.9% sequentially to $14.7 million or $0.53 per share, up from $12.8 million or $0.45 in the third quarter of this year. Cash flow from operations for the quarter was $23.5 million, a 77.8% increase, compared to $13.2 million for the same period last year. Cash generated from operations for the year increased 38.5% to $70 million.
Turning to the balance sheet. As of the year end we had $340 million in total cash and short-term investments, $396 million in working capital and $237 million in long-term debt including the convert.
During the quarter we issued 230 million in convertible senior notes due on October 1st, 2026. The notes will pay interest semi-annually at a rate of 2.25% per year. The notes are convertible at $58.50 per share and are redeemable into cash and/or shares of the Company's option. At current market interest rates, we expect this transaction to be accretive to earnings per share.
Our total debt to equity ratio was 1.1 for the quarter while our total debt to assets was 53%.
Inventories entered the fourth quarter at $48.7 million with inventory days of 70 compared to 67 days the previous quarter. Accounts receivable days were 74 days in the fourth quarter compared to 73 in the prior quarter. We continue to experience some pressure to extend terms, especially in Asia and Europe.
Capital expenditures for the current quarter were $12.7 million and $45.1 million for the year. For 2006 excluding the $6 million Taiwan building purchase, capital expenditures were at 11.4% of revenue, in line with our 10 to 12% full year guidance.
Turning over to our outlook, coming off a seventh consecutive quarter of record revenue albeit at a more modest 2% sequential growth with a book to build ratio at PAR, we currently expect to see first quarter 2007 revenue in the $90 to $94 million range with comparable gross margins.
In summary, despite near-term industry headwinds, we remain confident that Diodes' focus on the discrete and standard analog products segment position us well to continue to grow our share with both new and existing customers during 2007, as we fully leverage the synergies created by the AnaChip and the APD acquisitions.
With that said, I'm now going to turn the discussion over to Mark King, our Senior Vice President of Sales and Marketing. Mark will discuss our new products, market opportunities and give you a view on the direction of the general marketplace.
Mark King - Senior VP of Sales and Marketing
Thanks, Carl, and good afternoon. We are very pleased with our execution in the fourth quarter and for the full year 2006. In Q4, Diodes again achieved record sales, had strong design wins, and launched a number of innovative new products targeting high-volume end market applications.
We are very pleased with the contributions of AnaChip and APD have made to our business, reflecting the rapid integration at the product, design, and customer levels. Our expanded product offering, broader customer base and deeper relationships have resulted in cross-selling opportunities that continue to exceed expectations.
During Q4, we made significant progress along our new product roadmap in discrete, analog, and power management categories. Sales of new products reached a record 33.5% of total sales, driven by products in our subminiature array, QFN, PowerDI, and Schottky platforms on the discrete side, and our analog product lines in general, and the new devices brought in from APD.
We launched 12 products from 10 product families in the quarter. Earlier in the quarter, we launched AH-180, a micropower omnipolar hull effect sensor family that fills the growing demand for lower power and higher sensitivity for portable contact lift applications.
More recently we launched our next-generation, high-voltage, high-current PWM Buck Converter and the SBR PowerDI 123 product family. This launch uses the Super Barrier Rectifier technology we call SBR and a product family packaged in Diodes' proprietary high-performance PowerDI 123 package. This product offers industry-leading ultralow Vf combined with class leading high-temperature thermal stability, robust ESD ratings, and much higher reverse avalanche capability compared to traditional Schottky technology.
Diodes is currently releasing six SBRs that meet the strong customer needs in power supply, automotive, and various other portable applications. During the quarter we integrated the APD sales channel into Diodes and qualified and converted 75% of the product line to a Diodes brand. We expect to have this line fully converted to our brand and internal manufactured by the end of Q1 for small outline packages and mid Q3 for power packages.
Customer interest for both standard and customized devices has been exceptionally strong. Many of our customers had been positive on the APD technology but hesitated to design in because of concerns about the size and the stability of the vendor. So we expect the ramp on this product to be quite fast.
Marketshare per Diodes product reached all-time highs in the fourth quarter. Asia grew 5% sequentially and contributed 75% of our fourth quarter sales, supported by sales in the consumer and computer segment. Sales were strong across all markets with emphasis on digital audio players, notebook computer, motherboard, LCD TV and monitor, and wireless LANs. Units were up 4% quarter-over-quarter while ASPs were down 2%.
North America was down 5% sequentially due to seasonal downturns in some key accounts and distributor point of purchase. North America sales represented 22% of the total in the quarter.
However design activity in the quarter was high, with 97 new parts design in to 33 customers. Our DFN, PowerDI and linear regulator lines were of high interest. There was also strong interest from the power engineering community in our newly acquired SBR technology.
Distributor point of sales and inventories were down in line with the decline in sales. Wafer sales were down 13% sequentially in the quarter and ASPs were down 6.4%. ASPs for discrete performance were down slightly in Q4 compared to the prior quarter.
The European market was soft in Q4, down 14% sequentially due to weak distributor point of purchase as they worked to reduce inventory for year-end. However distributor point of sale was up 3% sequentially and year-over-year overall European sales were up 60% quarterly, reflecting our expanded reach in the region.
Overall, in 2006 we made great progress in this market, doubling our revenue in a generally flat market. Our momentum in Europe continues with design wins, initial orders, and expanded contracts at more than 10 accounts in the quarter, including six new analog design wins and our first product orders on our new omnipolar Hall-effect sensor in an industrial application.
Moving to market segments, for the fourth quarter, our segment breakout was 37% consumer, 36% computer and peripheral, 15% telecom, 12% industrial and 2% automotive. Now on design wins, design activity was again strong in the quarter and we had multiple wins at over 60 accounts. Traction on standard analog wins is steadily ramping up in North America and Europe with LDO and switching regulator wins in motherboard, set-top box, game console, and network devices.
In Asia, activity is strong as well with wins in LCD display, printer and portable GPS. We have also had strong design activity globally on our recently announced omnipolar Hall sensor series. On the discrete side we continue to see robust interest in our DFN leadless package, PowerDI and array platforms with wins in digital audio, mobile handsets, portable GPS, DC-to-DC city converter and DSL modems, to name a few.
The synergy between the analog and discrete product line continues to present opportunities at the customer level.
I expect the design activity on our newly acquired Super Barrier Rectifier product line to be very strong in the coming quarters. We see significant opportunities on the present product line but we will also be working with customers to outline and develop applications or customer-specific requirements that can be exploited with this technology.
In summary, we are very pleased with our performance in the fourth quarter and for the year. While the industry environment has become more challenging in recent months, we feel confident that Diodes is well positioned to continue to expand our share of the market, realize cost and cross-selling synergies from our AnaChip and APD acquisitions, and accelerate the pace of our product innovation through our expanded global research and development platform.
As we enter 2007, we will continue to leverage our core competencies around manufacturing excellence and customer-centric innovation to expand our position with our customers on next-generation end devices. We feel confident that we are in the right segment and have the right product focus to drive organic growth above the overall market.
In addition, we are evaluating acquisition opportunities to accelerate that growth by expanding our addressable markets, enhancing our product breadth, and expanding our customer base and geographic footprint.
With that, I will open the floor to questions.
Operator
(OPERATOR INSTRUCTIONS) Ramesh Misra. C.E. Unterberg Towbin.
Ramesh Misra - Analyst
Good afternoon. My first question was in terms of a breakdown of your revenues in terms of the analog contribution to total sales.
Keh-Shew Lu - President and CEO
Thank you for calling in. We don't separate our revenue between the discrete and the analog. What I can tell you is our growth, the 2006 growth in analog is much faster than the growth in the discrete.
Ramesh Misra - Analyst
Okay. Can you then qualitatively talk about the new product that you have designed integrating the analog components and discrete devices on to a single package? When do you see them contributing meaningfully to your revenues?
Keh-Shew Lu - President and CEO
I think we -- if I say to you if you remember I keep mentioning, our first step is No. 1 when the analog fallout energy products into our facilities. Then the second step is give the customer the confidence on our product, our analog product alone. Then the third step will be integrate packaging integration to put the analog and the discrete together.
So we actually right now just in the first and second stage, we start to post to our customer a possibility of putting them together. But we do not have any revenue come out from the integration (indiscernible) technology in the same packaging yet.
Ramesh Misra - Analyst
I see. So when do you expect to hit that third stage?
Keh-Shew Lu - President and CEO
I think this year should be a good time. We started working with our customer who started using our analog product and started to build the confidence. Then we would [work] with them for the new design and then for them to rent it out. So it takes time but we are working with different customers now to bring that proposal to them, but it depends on when do they accept it and when did they willing to take a risk and rent it out. It really depends. I cannot control.
But I think that this year we should see some revenue come in from multipackaging type of technology.
Ramesh Misra - Analyst
Can you talk to us about factor utilization levels last quarter both (indiscernible) and also Kansas City?
Keh-Shew Lu - President and CEO
I'm sorry.
Carl Wertz - Chief Financial Officer
Utilization rates.
Keh-Shew Lu - President and CEO
Oh. Utilization rate? I think in the Kansas City (indiscernible) we still (indiscernible) about 85% noted which is typically in the wafer fab. You know we consider this okay. And in our Shanghai facility packaging, we are still above 95% so we don't see any significant difference from (indiscernible) point of view in both fab and both packages.
Ramesh Misra - Analyst
So one final question. Do you feel that you were capacity-constrained in any way in Q4? And that's it. Thanks very much.
Keh-Shew Lu - President and CEO
No. Well, we -- I think if you remember what I keep talking about we continue [adding] the packaging capacity into our fab, into our assembly site. We typically -- this is more to show 10 to 12%. Our revenue, we will put into our capital dollar and this year -- what? 2006, okay. This account building we've opened in Taiwan we are about 11.4%, right? (inaudible). So it is still within our model and we just each time [grade] you put in capacity we are not crazy to adding a lot of capacity to create entity capacity.
But at the same time we would not allow this capital to limit us from the growth. Therefore we kind of somewhere above 95% and that's above the level we continue running it. So I don't feel we have (indiscernible) strength and would (indiscernible) from the growth.
Carl Wertz - Chief Financial Officer
If I may add to that a little bit. Dr. Lu mentioned we were running at 95 or better in the utilization with that 11.5% of CapEx. What that didn't allow us to do was to integrate all of the subcontracted packaging into our facilities. So if your question was are we constrained from that point, yes, we were in 2006. But that may be an opportunity for us in '07.
Operator
Steve Smigie with Raymond James.
Steve Smigie - Analyst
I guess sort of following up on that last question to the point of the gross margin expansion that you mentioned for 2007. When -- which quarter do you think we might start to see that and can you give some sense of what magnitude you might expect to see gross margin expansion?
Keh-Shew Lu - President and CEO
We gradually move in our (indiscernible) APD our product which produces (indiscernible) at end of last year we are less than 50% moved in. And we at end we probably only moved up to about 75 to 80% of our products because the rest (indiscernible) 20% or 25%. We will not move in due to we have no capability or the [volume] is so small it is not worth the efforts.
So we believe by probably third quarter of this year we should be finished those move-ins.
Steve Smigie - Analyst
Could you talk a little bit about what the operating expenses R&D and SG&A might look like in Q1? Sorry if I missed that but I was just curious if maybe a dollar and a percentage of revenue?
Keh-Shew Lu - President and CEO
I may not (indiscernible) Q1 but I think I gave you our basic model. Our basic model, still R&D is somewhere between 2 to 3% and we hit we -- fourth quarter we get 2.5%. That is now within our basic model. You now, 2 to 3% of R&D. And from SG&A point of view, if you discuss the sheer base costs -- you know ths start-up costs then we target at 12.5% for SG&A; and you can add in about 1.5% into it for compensate for the stock option expense.
And therefore that is our biggest model. And we control our expense according to that [nine] that [bit of] model and I think we are (indiscernible) that point. You know in fourth quarter we are somewhere there too.
Steve Smigie - Analyst
Could you give us a little bit of an update on the M&A pipeline? I know you said you are actively pursuing that. Any sort of near-term targets or any color that you feel comfortable giving on that?
Keh-Shew Lu - President and CEO
Obviously you know that I am looking at different opportunities, but we are not going crazy to give away a high -- much higher price, to (indiscernible). And so we talked to several different companies but I don't have anyone yet agree with me to give me the price (indiscernible) I am talking about.
So it's difficult even now (indiscernible) market with slow down and other company, their stock price going down but every body believe their stock their company value is much higher than the stock market cap. So even the stock market stock going down. People still know we need to absorb there, expect to vary and that is why I have difficulty to tell you I nailed down to one or two, a couple of them.
But I do every -- I do continue looking for different opportunities and talk to different opportunities. But we don't want to be just buying some companies just because we have the money or because we want to buy. I am very careful to [subject] the company who meet our strategies. You know I think I mentioned several times about the requirement.
You need to be -- have market synergy, have the product synergy, (indiscernible) the value to our product portfolio. Adding value to the technology to our market portfolio. And most important you need to be accretive in 12 months, within 12 months.
I keep saying that and I'm still insistent of that. So it needs to be accretive within 12 months.
Operator
Christopher Longiaru. Sidoti & Co.
Christopher Longiaru - Analyst
I just had a question. First of all, the inventory situation next quarter, with respect to your clients, talking to your clients and your customers. Do you see anything -- what's your anticipation of higher inventory levels right now and how do you (indiscernible) 2007 with respect to your business?
Carl Wertz - Chief Financial Officer
I will answer a little bit of that and then Mark and Dr. Lu can add to it. We realize that the last quarter we lost a couple of days' inventory. We are very focused on inventory. We have managed inventory over the years. We stated last year that we felt that our inventory was well-positioned for our revenue growth.
We believe we are still there. We have some opportunities there to take care of some of the inventory and we are definitely focused on it. Mark can add a little bit maybe from the sales aspect of it.
Mark King - Senior VP of Sales and Marketing
From a customer standpoint I don't really think it is inventory in that there was a little bit of an inventory overage in the channel in Q4. I think some of that has been settled in North America and Europe. I don't think the customer base is -- we see a great over inventory. I think we just may see a slightly softer demand in Q1 compared to Q4, in some of the end equipment but I don't think it is an inventory-based issue.
Christopher Longiaru - Analyst
And also with the APD acquisition, you said this would probably add around $8 to $10 million in revenue in 2007. Is that going to be more back end loaded or would you say it is more evenly spread throughout the year?
Mark King - Senior VP of Sales and Marketing
We still have some work to do on getting that product in in there, but I think it would be more back end loaded but it should be very achievable.
Christopher Longiaru - Analyst
That's all I have. Thanks.
Operator
Harsh Kumar with Morgan Keegan.
Harsh Kumar - Analyst
Good afternoon. A couple of questions. A couple of people before can you quantify what kind of gross margin expansion you can see as you bring AnaChip in over the course of the year?
Keh-Shew Lu - President and CEO
Are you talking about gross margin expansion (MULTIPLE SPEAKERS)
Carl Wertz - Chief Financial Officer
Expansion throughout the year as we bring in AnaChip.
Keh-Shew Lu - President and CEO
Afterwards see a gradually improvement. And like I've been mentioned we paid more attention to the gross margin dollar (indiscernible) instead of gross margin percent improvement. So if you ask me I would tell you our gross margin dollar would be improved. You know quite (indiscernible) or quite good but from a gross margin percent it really depend on how fast we bring the product -- see, if in this year the market is very good then we must use in that capacity for the new business instead of bringing in the produce from AP -- from the [subaccount to ourselves].
And depend on the product, if the product is doing very well and the subcontroller the gross margin may not be as good as the product come out from our own site. But I don't mind either way as long as our revenue continues to increase. That's really more important.
So I didn't concentrate onto people look at our gross margin dollar instead of gross margin percent. And that dollar is really what I am looking for and then that number grows as fast as we can and that number flows through to the real bottom line, which is (indiscernible).
So if the market not grow as fast as expected then the gross margin percent might increase because we'll be aggressively put in to ourselves but if market is really good then all use in that capacity for new business.
And the key is then in my mind to increase the gross margin percent is really coming from the new product. We have very aggressively pushed out the new product and new technology and those really, it's more important for me to increase the product mix or two, changing that product mix to increase growth margin percent. We are able to maintain in the last several quarters, we are able to maintain our gross margin percent the same or similar, even our ASP going down is because #1, our cost reduction effort but another one is our product mix.
And as I mentioned our analog sales much faster than discrete and our analog has a lower gross margin and by which we are able to maintain the same growth gross margin percent to tell you we actually improve our gross margin percent if you do the apples to apples comparison. But it is just because the lower gross margin of analog fallout grow much faster than the higher growth margin of discrete. It affects us the improvement of the number you know, [show outside] but the majority of gross margin dollar.
If you look at it this year 2006 versus 2005 we grow 60% right. Carl? (inaudible) Yes, 60%. So this is what is important is growth margin dollar increase 60% in year-over-year than we just pure look at growth dollar gross margin percent.
Carl Wertz - Chief Financial Officer
Actually the dollar is like 47%. 47% year-over-year a dollar (MULTIPLE SPEAKERS).
Operator
Gary Mobley with A. G. Edwards.
Gary Mobley - Analyst
Could you share with us how bookings have trended thus far in the first five weeks of the quarter?
Mark King - Senior VP of Sales and Marketing
I'm sorry, Gary.
Gary Mobley - Analyst
Could you share with us how bookings have trended those are in the first five weeks of the quarter?
Mark King - Senior VP of Sales and Marketing
In the -- they've trended up in the first five weeks in the quarter. For Q4 they were slightly below par and in the first five weeks they are above par.
Gary Mobley - Analyst
And Mark, looking into your crystal ball how should we think about the progression of bookings throughout the year given what is normally a seasonally strong second half of the fiscal year?
Mark King - Senior VP of Sales and Marketing
I can't give you what I expect a book to build trend to be, but we still feel very strongly on the long-term outlook for this year. It is quite strong.
Gary Mobley - Analyst
Okay (MULTIPLE SPEAKERS)
Keh-Shew Lu - President and CEO
We believe, (indiscernible) 1Q seasonally for our business especially if you look at the majority of business, almost 75% of our business is consumer and computer. And consumer and computer business typically in 1Q seasonally, you are going to see some slowdown. But we don't see maybe somebody see a very bad or something but we don't really see that. We still think we are going to continue getting market share in 1Q and you can see some seasonally effect but it's not typical. It is not our best.
And we believe after that second quarter will come back to the growth period and then this year we still look at this year as quite good year for us.
Gary Mobley - Analyst
And to follow up if I may. Do you think you have run out all the sales synergies from the AnaChip acquisition and looking on to '07 would you expect the analog products to again grow at a faster rate than the discretes?
Carl Wertz - Chief Financial Officer
No. I think we still have a significant growth synergized achievement to go on the AnaChip side. Really the product on the analog side is just hitting the North American and European channels. We've had some design wins on our Asian base designs and so forth and some of our key customers, but getting the product prepared and logoed and changing all the stuff for the channels takes a long time. They have a pretty broad product line.
So we are just starting to enter the channel now. So we have great opportunities in North America and Europe on the analog product line.
Keh-Shew Lu - President and CEO
And even the Asia, you know last year we spent a lot -- we grow much faster but some -- most of them coming from the existing customer they have, but you know the power in the second half of last year we started getting to the new customers we have. And those it takes time to ramp it up.
So this year I believe will be another good year for us for order new design, new wins with our customers and the Europe, U.S. Don't go give us a quite good good engine. I mean it's a good growth engine to grow.
APD is another one. We just get it in the last year and we are going to start deport it into our site. Like I say, 1Q we should be almost done well -- majority for the small outline ones.
Carl Wertz - Chief Financial Officer
Yes. We were able to move that one much quicker but again all of those were Asian-based designs. So that's all new fresh opportunity in North America that hasn't seen it and the reception has been quite good.
Keh-Shew Lu - President and CEO
And then the third thing is, we start to put in the new design we sold and improved the design we sold in AnaChip operations. And at the same time we are aiding the new analog design we saw in start up in San Jose and those, you are going to start to see a lot of new products coming out and now aiding the growth of the analog for this year.
So I think in our condition going to be continued (indiscernible) could have good results this year.
Operator
Shawn Harrison with Longbow Research.
Shawn Harrison - Analyst
I just had a question on following up on 1Q's seasonality. I think you mentioend it was going to be down a little bit or typically is down a little bit. Could you comment on how many days you are going to lose to the Chinese New Year this year versus previous years?
Keh-Shew Lu - President and CEO
From the Chinese New Year or from the market. Typically, it is about the same. You probably one or two day difference but it won't be that much. Typically it is a whole week for us. Both weekends from the front and on the back.
So I don't think really that much of -- . If our customers going to start shut it down in those. But for us we probably won't have that much effect because we typically working through the Chinese New Year. We won't have done much of excess capacity to be able to shut down 10 days. We by history we always operate our facility all the time instead of shutting down.
But our customers do start to see some shutdown or some stop production, but I don't see any particularly different this year versus the past.
Shawn Harrison - Analyst
All right. Could you speak a little bit about a percentage of sales to distribution? I think you are at 30% of sales to distribution for AnaChip? Any changes there?
Keh-Shew Lu - President and CEO
No it's [deferred], okay -- .
Carl Wertz - Chief Financial Officer
Actually we were generally running about 65, 35 prior to AnaChip but AnaChip was heavily distribution based. I think now and there's been some chips in there. I think we are running -- I don't have the exact figures in front of me (MULTIPLE SPEAKERS) but I think it's more like 52 OEM, 48 maybe right in those plus or minus a couple of percentage points. I will make sure that on the next quarter that I have that in the conference call. I apologize for that.
Shawn Harrison - Analyst
No. No problem. Thank you much. And just a housekeeping question -- interest rate on the cash balance I think it's around 4.5%. Is that correct?
Carl Wertz - Chief Financial Officer
Yes. It may be a little bit north of 4.5. Somewhere closer to 5 in the last quarter.
Shawn Harrison - Analyst
Appreciate it. Thank you.
Operator
Michael Davies with Next Generation.
Michael Davies - Analyst
Thank you. I was just wanting to get maybe just a little bit of clarification on the AnaChip and APD acquisition. As I understand, that as we move more into providing the integrated solutions, particularly with ADP maybe providing you with some unique skills and high voltage, we are earmarking much more higher gross margin products. Do you see this being in more in the design side? Does it still lend itself to -- you know, the packaging capabilities?
Keh-Shew Lu - President and CEO
Well actually. It's both. First I need to correct it's APD instead of ADP. APD. Okay, the Company we purchased is APD and, yes, it's both. They give us the process for the wafer technology which can handle high power or if you wanted the same performance, a small (indiscernible). So if you -- even [nice] on that technology is scalable. So if you want to use it nice size you get a better performance and if you said a performance (indiscernible) then I can [shook] the die to make it cheaper. It is very easy to scale.
That is that technology provides us. Then what we do is since you are capable to scalable to the same performance as (indiscernible) then we can pick those products to put in our innovative, our most (indiscernible) of the miniature die packages and win the market. So we are doing that too.
So we tried to take advantage from both sides. But at the beginning we -- at the beginning what we do is we try to shake the die or try to take that product just straight to go to our packaging.
Michael Davies - Analyst
What I was trying to get to is, does it lend itself to the same high volume production that you are used to now as we move into more of the specialized products? Wouldn't they be lower volume products and does the same capabilities transfer over?
Carl Wertz - Chief Financial Officer
No, actually, I think that it lends itself very well to high volumes, because the scalable technology really for high-volume applications allows us to design a part exactly as the customer needs. What this really is is a really high-efficiency technology. And as we target certain specs for certain applications -- and that is why I kind of said that we were really focused on customers' specific requirements. They've really gone out -- their product line is really very standard as we received it. And what we want to do is now develop a very specific product line around an application.
So really what I am telling my people is to go to the fields and sell the technology and ask the customers how they would like us to tailor it for their application, rather than go out there and try to sell them parts. Thin as they tail it around our applications then they become our customers for a very long period of time.
Keh-Shew Lu - President and CEO
And don't forget if in the wafer it might be customized but when you go to the packaging it's actually in the package. Therefore for their production for that [kind of] assembly production point of view the high volume production. So the tailor design is actually in the wafer fab, which we don't mind.
But when you go to the manufacturing side, it is high-volume, miniaturized package and technology which -- that's where we are good at it.
Michael Davies - Analyst
Thank you.
Operator
Alex Gauna with UBS.
Alex Gauna - Analyst
Sorry to return to this topic but I was wondering if you could touch on where are AnaChip or analog -- however you want to define it -- gross margins relative to the corporate average right now? And if I heard you correctly, you said 50% has moved internal and if you could give maybe some description on what sort of savings have been achieved in terms of maybe the average gross margins for that product area over the course of the second half?
Keh-Shew Lu - President and CEO
Let me put this -- it's supposed to be the inner chip will be able to if we 100% move in and if we can get to the same performance from your point of view, it will be able -- we will be able to get to the same gross margin or even higher compared with our discrete.
And our problem is, we -- our [assembly] sites do not have that experience of doing analog testing. Packaging, yes, with our packaging we have a couple of new package like SO-8 which is new package for us but that's (indiscernible) month. (indiscernible) package no problem but we are deal with testing. We have no problem detects discrete because we are allowed experiments but start to do the testing which was (indiscernible) and then we gradually moved in and when the people is really busy and try to fulfill our growth in last year we kind of a little bit of slowdown of year improvement of the (indiscernible) those kind of things.
So I at the [meeting] our -- today our AnaChip type of product our gross margin will not be as good as the discrete. But it takes time. It takes time to get our test coordination down [EO] down and it's a learning curve.
Do you understand what I'm saying?
Alex Gauna - Analyst
I do.
Keh-Shew Lu - President and CEO
Yes and for discrete we ordered down we order production for eight, nine years. We have no problem to get it. Assembly yield high. Tested yield high but for analog we just try to teach our assembly site people how to test analog product. And the test coordination, the argument about who is right, who is wrong.
It takes a while for them to (indiscernible). So I needed that -- our gross margin growth was not as good as I expected but actually we predict that. So every quarter we say we are above comfortable on our gross margin, which we did that every quarter and the fourth quarter we actually improved 200 points. What?
Carl Wertz - Chief Financial Officer
20 basis points.
Keh-Shew Lu - President and CEO
20 basis points.
Carl Wertz - Chief Financial Officer
Also we were pretty full out in discrete production to keep up with the new revenue demands. So we have some opportunity in '07 for where our margins will (inaudible).
Keh-Shew Lu - President and CEO
What I'm saying is we have opportunity in '07 to improve that number. By going down the lending curve and by more product, additional product into our site.
Operator
Dennis Reed with Cleveland Research.
Dennis Reed - Analyst
Thank you very much. First question. In regards to the competitive dynamics in the standard analog and discrete market, could you provide any color into some of the competitors who have been taking utilization rates down and if they are re-engaging that market?
Mark King - Senior VP of Sales and Marketing
You know we don't see a great deal of people changing. I think deep down there's still -- on the low end devices, there's still not a big overage of capacity. So and I don't think anybody is particularly panicked about the environment that we are in right now so I don't think that we are seeing people change their strategy dramatically.
May see a little bit more pressure on the commodity analog side because the ASPs are all higher and the progression away from discretes is much greater than the commodity analog (MULTIPLE SPEAKERS) the beginning of the cycle on the commodity analog rather than the end of the cycle on discrete. So I don't see a significant change in the environment.
Keh-Shew Lu - President and CEO
Especially we don't see a big competition from those major semiconductor providers. Now we do see some like AnaChip type of company from here and there try to (indiscernible) analog have a little bit better gross margin than discrete. So people started thinking jump into it but you know that's exactly AnaChip (indiscernible) problem they try to do (indiscernible) pay profit to the wafer, pay profit to the packaging house and cannot really get the right ASP for the product.
So we see that kind of competition actually is the all AnaChip type of company. We call them AnaChip Jr. But I don't really see a major competition coming from the major semiconductor company.
Dennis Reed - Analyst
Could you provide any color on the overall pricing environment throughout the fourth quarter and has it changed at all as we've entered the first quarter?
Mark King - Senior VP of Sales and Marketing
You know last year was pretty stable going into the fourth quarter. I mean, we had some minor decreases and it was a little bit more aggressive in the fourth quarter. But again I think it was only down 2% in Asia on the average ASP. And I think it is probably slightly more aggressive because of -- if you just look at the semiconductor guidance out there. So there are people looking for orders but again we don't see any significant change. Okay?
I mean there's no drastic change but, yes, we live in very competitive environments all the time.
Operator
Chris Chaney with Stanford Group.
Chris Chaney - Analyst
Thanks for taking my question and first of all, nice year. I mean good performance for the year, I think, financially. I wanted to follow up with the pricing question just a moment ago. It sounds like general comment then for Q1 '07 would be that ASP pressure looks like it is going to be sort of normal maybe in the 3 to 5% range; maybe a little bit more aggressive than Q4, but still not out of the ordinary?
Carl Wertz - Chief Financial Officer
Right.
Keh-Shew Lu - President and CEO
You are correct.
Chris Chaney - Analyst
Okay. Great. And then, I had a question here about a -- I guess a multipart question about the wafer fab. I haven't heard much or any discussion about that yet. What percent of the output of the wafer fab do you use internally? And how is that split between analog products and the discrete products? And finally as that percentage changes, not the split but the percentage of using it internally, how will that be affecting your gross margin?
Keh-Shew Lu - President and CEO
From the discrete -- from discrete point of view we, right now, 30% is outside -- is buying from outside and -- .
Carl Wertz - Chief Financial Officer
No. 30% of our fabs' capacity is used internally.
Chris Chaney - Analyst
Internally. Yes. Okay.
Carl Wertz - Chief Financial Officer
And all of that is discrete. We do no analog assembly (MULTIPLE SPEAKERS)
Keh-Shew Lu - President and CEO
That's right. From analog point of view we buy product we buy today from LSE and for the CMOS point of view we are looking at, we are getting from other areas. So that won't change. We do not intend to gain through the [variable] wafer fab because that's (indiscernible). I think I can tell everybody the variable for our commodity analog and our discrete is in the packaging not in the wafer. And therefore wafer is just to help us to support our demands and we don't need to run into trouble when we are at capacity issue.
But from the gross margin and from a profit point of view we concentrate on in packaging because that is where the value is.
Chris Chaney - Analyst
I see so as -- if you were to, for instance, go to 35% of your output being used internally, that wouldn't really affect your margins much at all?
Carl Wertz - Chief Financial Officer
Theoretically the more we use. it should increase our margins.
Chris Chaney - Analyst
That makes sense. Right.
Keh-Shew Lu - President and CEO
Yes, it's a little bit, but as long as that much because I say the value is not, you know even you can say 10% from wafer but that is only a small percent of the cost. So it won't affect the growth margin that much.
Chris Chaney - Analyst
Thank you. Okay. All right. Just looking for another lever on margins here but it doesn't sound like it's not much of one.
Finally on the CapEx split between wafer fab and packaging for 2007, what would be the general split of that?
Keh-Shew Lu - President and CEO
Majority. A large majority goes to packaging. We only a small percent goes to our wafer fab just (MULTIPLE SPEAKERS)
Carl Wertz - Chief Financial Officer
Maintenance.
Keh-Shew Lu - President and CEO
Maintenance. Where run in some spare parts sometimes. You have some machine you might need to upgrade we go to buy the used machine but a majority of our money really goes to assembly.
Chris Chaney - Analyst
Excellent. Thanks for answering my questions. I appreciate it.
Operator
Harsh Kumar with Morgan Keegan.
Harsh Kumar - Analyst
Dr. Keh-Shew, just quickly as your consumer and computing markets start to grow into the second quarter which is the June quarter, and you have heard a lot from the other companies kind of in your space and also other larger companies calling for probably something close to a snapback or a strong recovery in Q2. Would it be fair to say that you would see something similar the way it's looking like from your eyes?
Keh-Shew Lu - President and CEO
I think so.
Harsh Kumar - Analyst
Great. That's it. Thank you.
Operator
Alex Gauna with UBS.
Alex Gauna - Analyst
Mark, I was wondering. You mentioned a number of new product areas and families that have been introduced here in the past year. Is there any way you can touch on maybe quantifying the amount of new business you feel like you've put in the pipeline '07. Or is it even a longer horizon for that?
Mark King - Senior VP of Sales and Marketing
I can't quantify it but I feel pretty good about that our platforms are going to launch. Some faster than others. We feel very comfortable with this recent haul, sensor-release (MULTIPLE SPEAKERS).
Keh-Shew Lu - President and CEO
H-180, we see a design win everywhere. Now how quick they get rented up it would be dependent on the customer. But I see the report on the design win actually H-180 from Europe, from U.S. and from Asia. It's very very good product.
Second thing is this new (indiscernible) of APD product. Not just announced it so you probably say it is too early to talking about design win yet but we were so surprised when every time you go to talk to the customer about this product, everybody is jumping on it. So demand for the sample is so high so I just thinking we have a (indiscernible) good great product coming out we are very happy with. Both APD acquisition and AnaChip acquisition.
You know 180 H-180, the whole [sense] is coming from AnaChip and this APD Super Barrier Schottky. This is coming from APD acquisition so both knew those acquisitions give us some (technical difficulties) for new product.
Alex Gauna - Analyst
Within that shining star category the Hall sensors would you say that you have already secured a lot of '07 business or do we still have to wait through some of the design cycles of the early year, say, 3-GSM? Those types of trade shows or does the outlook look pretty good at this point?
Keh-Shew Lu - President and CEO
I think I let Mark give you those answers.
Mark King - Senior VP of Sales and Marketing
I think that some of those design wins or active design temps have not been secured in some of the things because it takes a little bit longer. But some of our customers were making progress -- quite good progress. I think the notebook industry is doing quite well and we expect that with our product mix in notebook that we should be able to dominate some of those areas.
Some of our competitive base have left a lot of opportunity for us in the Hall-sensor area. So I think in certain segments, it will take us longer but we feel pretty comfortable that we have the right product and we have a good product and we have an interesting customer.
Alex Gauna - Analyst
Good. Thank you.
Operator
Kevin Rottinghaus with Cleveland Research.
Kevin Rottinghaus - Analyst
Thank you. The Communication segment jumped pretty significantly here. It looks like just based on percentage of revenues, is there any rate through there into cellphones? I mean is that starting to pick up for you at all?
Mark King - Senior VP of Sales and Marketing
Actually we put cellphones into consumer segment and probably that's basically being driven by wireless LAN. The AnaChip's switching regulators are very well-positioned in some of the key chip reference designs for wireless LAN.
Kevin Rottinghaus - Analyst
On last quarter there was significant acquisition (indiscernible) in your natural rectifier. Have you seen any changes competitively there? How are they acting out in the marketplace? Any impact that you have seen as far as opportunities for you to grab customers or any changes there?
Mark King - Senior VP of Sales and Marketing
I really don't think that that -- when we looked, when that was available we looked at it. We did say a lot of overlap in our product lane for our segment (technical difficulty). That's really kind of high-powered module and some module based (MULTIPLE SPEAKERS) business. It really just isn't -- I don't think we'll see a lot of impact on our product line. I think that it might have dabbled in areas where we were but not as a key player.
Kevin Rottinghaus - Analyst
Then just a clarification question maybe for Carl. Did I hear right? The 50% of AnaChip is in-house or is that kind of the target for 2007?
Mark King - Senior VP of Sales and Marketing
I think we would have to get an exact figure. I don't think we have that exact figure.
Carl Wertz - Chief Financial Officer
We have attracted exactly. We know we didn't execute as much as we wanted last year and it's somewhere in that range but it's plus or minus probably 10%.
Keh-Shew Lu - President and CEO
No. It's less than 50%.
Kevin Rottinghaus - Analyst
It's less than 50?
Keh-Shew Lu - President and CEO
Less than 50% of their callout was produced internally. Yes I know (MULTIPLE SPEAKERS) in the fourth quarter yes, it's less than 50%, okay? But I can say we plan to only bring in up to about 75%. 75, 80%. Somewhere around that because that's the less than 20, 25% was product we don't produce or the volume is so small it's not worth effort to bring in.
Kevin Rottinghaus - Analyst
Okay, and then apples to apples you know outsourced versus internal. I mean 25 or 30% gross margin up to 40% gross margin and outsourced 30 in-house 40. Are those the right kind of numbers or is it something different from that?
Carl Wertz - Chief Financial Officer
Those are reasonable. That's maybe a little on the high-end (MULTIPLE SPEAKERS) -- .
Keh-Shew Lu - President and CEO
That is high-end.
Carl Wertz - Chief Financial Officer
But we did state that the analog once we are doing in-house should be at our 34, 35% range.
Kevin Rottinghaus - Analyst
The analog will be in the 34, 35 in-house?
Carl Wertz - Chief Financial Officer
Yes. It should work its way up with that, depending on the application.
Kevin Rottinghaus - Analyst
One last one on the acquisitions. I mean, is it still a criteria for you that it be accretive in 12 months?
Keh-Shew Lu - President and CEO
That is one of the key criteria we put it to ourselves and needs to be accretive within 12 months.
Kevin Rottinghaus - Analyst
Thank you.
Operator
Chris Chaney with Stanford Group.
Chris Chaney - Analyst
Thank you. This is a quick one. Your largest customer last quarter, I think, was around 10% of sales or so. Can you tell me or tell us how that has changed this quarter?
Carl Wertz - Chief Financial Officer
I don't think we have had any 10% customers now. I think our largest customer would be [Light On] where we are selling them wafers and we turn around and buy back the high-powered end products. And then probably the largest customer in the past which was close to 10%, because of our analog expansion and growth, now would take that down into the high single digits.
Chris Chaney - Analyst
That's what I was referring to.
Keh-Shew Lu - President and CEO
We in the past when we had discrete we do have a single customer at the 10% range but AnaChip -- with AnaChip acquisition they did not buy any products from AnaChip and because AnaChip acquisition our -- that just customer is no longer at the 10%.
Chris Chaney - Analyst
I see and just a follow-up then. that 8 to 10% customer -- 8 or 9% customer that I'm referring to does that maybe you know who that is. But are they going to be buying products from the AnaChip acquisition too or just currently discrete?
Mark King - Senior VP of Sales and Marketing
It is possible over the road with our new development and some of the products that we recently released that they could be buying that. But there's not only -- there is not one customer there anymore. There's multiple customers in that over five. You have some pretty -- we have a pretty diverse range there.
Keh-Shew Lu - President and CEO
But like I mentioned, we are very careful to introduce our energy product to the key major customer we have in the, on the discrete. Because we do not want any potential problem causing that. So we take time to get those units qualified by our assembly, make sure the product really meets our discrete customer's expectation and then after that we start to introduce them, those analog products. So it takes time and we are not -- we don't want to rush in to get the benefit right away and then cause a major problem for our customers.
Carl Wertz - Chief Financial Officer
Right as well as AnaChip's product originally was more higher powered so where we -- some of those customers live in the portable area. Some of the new products we have in development are more designed towards our traditional customer in the portable area. They gave us a little more rounding in our Communication segments which is more plug in the wall and so forth. So I think that they are more apt to use some of our newer products than our past products.
Chris Chaney - Analyst
Thank you.
Operator
At this time there are no further questions. Are there any further remarks?
Keh-Shew Lu - President and CEO
No, I just wanted to make sure we continue gaining the market share and our goal still we want to grow 2X faster than the market grows. We still on track with that. We still working toward that and yes, we might -- we have a season slowing but I think we are on track to our long-term goal growth packet. Thank you.
Mark King - Senior VP of Sales and Marketing
Thanks everybody. Look forward to coming back to you next quarter.
Keh-Shew Lu - President and CEO
Bye-bye.
Operator
This concludes today's Diodes Inc. fourth quarter and 2006 fiscal earnings conference call. You may now disconnect.