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To: etchmeister who wrote (183990)4/6/2006 1:58:40 PM
From: Yousef  Read Replies (1) | Respond to of 186894
 
etchmeister,

Re: "In one instance ... AMD discovered that circuits were peeling on its chips.
An investigation uncovered that a person in purchasing switched suppliers of a
particular chemical ... I don't follow this at all (in particular making it a
case for APM) because this chemical problem is a prime example for "copy exactly""

CORRECT, etchmeister ... I think APM would call for "gluing" back
down the peeling layer and shipping :)

Re: "Imagine every time the (post etch) CDs would change adjusting the etch
process to compensate - and there are hundreds of processing steps."

I believe that APM is more of a "feed-forward" technique whereby future
processing is adjusted for previous measurements. A good example would
be adjusting the etch conditions (maybe overetch) depending on the litho linewidth
measurements. This can be "dangerous".

Make It So,
Yousef



To: etchmeister who wrote (183990)4/6/2006 10:46:56 PM
From: Dan3  Respond to of 186894
 
Re: I wonder why AAPL is so unhappy with IBM

Hard to say.

Microsoft dumped Intel for IBM - I wonder why Microsoft is so unhappy with Intel?

AMD supplies 20+% of the market with 1,500 employees at FAB 30.

Adding another 1,000 employees will give them production to support 50% of the market.

It's amazing how efficient big FABs have become.


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