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Technology Stocks : Advanced Micro Devices - Moderated (AMD) -- Ignore unavailable to you. Want to Upgrade?


To: semiconeng who wrote (66970)1/3/2002 12:00:57 PM
From: pgerassiRespond to of 275872
 
Dear Semiconeng:

You fell into Elmer's trap! How can AMD (or Intel for that matter) have x in capacity at end of Q3 and have a wafer started then be available for sale at end of Q3. They can't! So you can not take capacity at end of a quarter and assume that wafers started then can make it through the 13 week processing time and still make it in the very same quarter. Thus wafer starts must take place more than 13 weeks before a good packaged CPU can be sold from a store or made at an OEM. So at best, the latest a wafer start must have been made at end of Q2 to be sold at end of Q3 which is the latest to get into the Q3 sales figures. Since the end of Q2 was at 60% and the end of Q1 was at 40%, the average should be 50% not, the 70% Elmer used in his calculations.

So Elmer wanted an extra quarter of ramping to make his arguments and you let him by making the same assumption that got him into trouble! Also a production line starts at some less than full speed when initially put into production. When the production output is as originally assumed (or better), then the line is sped up to full speed. This adds more lag than capacity improvements would state. Thus, I doubt that all of Q2 averaged 2500 WPW in starts. It was probably more like less than 2000 WPW. That would make yields of more than 154 GDPW which is more like 77% including packaging losses and minimum speed bin losses. That is not bad even per Elmer.

Now use those same principals to look at Intel's output for Q3. It looks much worse for P4 yields even after reductions shown above. Intel's yields must be terrible somewhere for the persistent shortages to keep occurring. And Elmer refuses to own up to it!

Pete



To: semiconeng who wrote (66970)1/3/2002 3:27:56 PM
From: hmalyRead Replies (1) | Respond to of 275872
 
Semicongeng Re...So the article dated July 31 said 60%. July 31 is the end of Q2, not Q3, if the article was saying 60% at the end of Q2, and Elmer was saying 80% by the end of Q3, and averaging 70% was his gesstimate for Q3. 60% at the end of Q2, 80% at the end of Q3, seems to average to 70% across Q3 which I though was Elmers statement. How does that make those percentage figures bogus?<<<<<<<<<<

What is bogus, is the assumption that this plant, or any other plant in the world is producing at 100% of its production capacity, day in and day out, every day of the quarter, without any allowance for down time at even one machine. That is what is ridiculous, Most plants when running full out run at 80% to 90% of capacity, in the good times. To say Dresden would was at 100% of its production capacity, during a recession, when the line speed could easily have been cut back to put production in line with sales, and use that figure to determine the amount of wafers produced, without any other verification, is ridiculous. Elmer first needs to prove the amount of wafers which were run, and the end production, against the max. no. which could have been produced, to show yields. Would of, could of, should of, doesn't cut it.

So, it looked to me that the award was "being the first facility in the world specifically designed to produce microprocessors with copper interconnects", it doesn't say anything about yield on that process at all.<<<<<<<<<

True, but do you really think that semiconductor international would have singled out this fab for recognition, if its yields were bad, no matter what the process was. In other words, the proof is in the pudding. Amd is hardly the only manufacturer to use the copper process. In fact,AFAIK, IBM built a 100% copper fab also, and spearheaded the copper process. Shouldn't that plant have been recognized, if the development of the copper process is all Semiconductor International was interested in? And why would Semi. Int. recognize the copper process at all if the end result was a disaster, as Elmer claims. Why wasn't Intel's notched gates recognized last year, if all Semi, Int. was looking for was a new process. To be the best fab in the world, you have to be good at everything; not just one aspect. And certainly, yields are the most important aspect.

-I'm not saying Elmer's correct, but it seems like your statements seem to be equaling his, in the "stretch" department.<<<<<<<<<

Anytime anyone uses production figures based on idealistic conditions, which never happen in real life, it is a stretch. Jerry said in the 3q-01 cc Amd was going to switch production from fab 25 to fab 30. Isn't it likely that AMD is in the process of doing so right now? Isn't it likely that at least 30% of that mythical 100% production, at Dresden, will be Durons. Where are the durons in Elmer's figures? If AMD didn't produce any durons at Dresden, wouldn't it be likely that AMD is setting up the capacity, until AMD can start the change over? Elmer's question of where the other 1.5 million chips are, could easily be answered, when he answers that question. Why is it when Elmer can't think of a good reason for something, that automatically means something is desperately wrong at AMD. There are other reasons.