Nvidia GT300 yields are under 2%?

jmke · 16th September 2009, 06:42

Several experts in semiconductor engineering, some who have overseen similar chips, were asked a couple of loaded questions: What is good yield for first silicon? What is good yield for a complex chip on a relatively new process? The answers ranged from a high of 50% to a low of 20% with a bunch of others clustered in the 30% range. Let's just call it one-third, plus or minus some.

The first hot lot of GT300s have 104 die candidates per wafer, with four wafers in the pod Nvidia got back a week and a half ago. There is another pod of four due back any day now, and that's it for the hot lots.

How many worked out of the (4 x 104) 416 candidates? Try 7.

http://www.semiaccurate.com/2009/09/...eilds-under-2/

16th September 2009, 06:42	#1
jmke Madshrimp Join Date: May 2002 Location: 7090/Belgium Posts: 79,021	Nvidia GT300 yields are under 2%? Several experts in semiconductor engineering, some who have overseen similar chips, were asked a couple of loaded questions: What is good yield for first silicon? What is good yield for a complex chip on a relatively new process? The answers ranged from a high of 50% to a low of 20% with a bunch of others clustered in the 30% range. Let's just call it one-third, plus or minus some. The first hot lot of GT300s have 104 die candidates per wafer, with four wafers in the pod Nvidia got back a week and a half ago. There is another pod of four due back any day now, and that's it for the hot lots. How many worked out of the (4 x 104) 416 candidates? Try 7. http://www.semiaccurate.com/2009/09/...eilds-under-2/ __________________

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