Nvidia GT300 yields are under 2%?

jmke · 16th September 2009, 07:42

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, 07:42	#1
jmke Madshrimp Join Date: May 2002 Location: 7090/Belgium Posts: 82,473	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/ __________________

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Nvidia insists Fermi yields have met expectations, denies low yield rumours	jmke	WebNews	0	28th April 2010 08:22
Nvidia GeForce GTX 400 Yields Are at 20% - 30%, Further Delays Possible	jmke	WebNews	0	22nd April 2010 15:59
More NVIDIA Nvidia GT300 Details - Fermi Codename Revealed	jmke	WebNews	0	28th September 2009 13:51
NVIDIA Working on Dual GT300 Card?	jmke	WebNews	0	18th August 2009 16:02
Four more NVIDIA GT300 variants tip up	jmke	WebNews	0	6th August 2009 14:53
Driverheaven Nvidia Mobility Modder Released V1.1.0.0	jmke	WebNews	0	6th August 2009 14:12
NVIDIA GT300 Taped Out, For Real?	jmke	WebNews	0	31st July 2009 14:17
nVidia GT300 - GeForce GTX 380 yields are sub-30%	jmke	WebNews	0	6th July 2009 10:17
nVidia G(T)300 already taped out, A1 silicon in Santa Clara	jmke	WebNews	0	17th May 2009 00:05
Nvidia GT300 with DirectX 11 from Q4/2009	jmke	WebNews	1	20th January 2009 07:14