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Politics : Formerly About Advanced Micro Devices
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To: Shane Geary who wrote (80042)11/16/1999 2:52:00 PM
From: Zoran  Read Replies (1) of 1579750
 
Shane,

I did some manufacturing simulations comparing classical gates with notched gates. I used some educated guesses about the level of the process control that can be used at those steps. Of course, every company has tens of engineers whose job is to make that process control better. My results show that major device/circuit parameter distributions are worse in the case of notched gate by 20-60% compared to classical gates. The one parameter that was heavily affected was the overlap capacitance.

PB, it doesn't matter whose chip it was. The problem is independent of manufacturer. I know you are familiar with the problem and you had to sit through numerous meetings discussing this issue.

Zoran
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