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-   -   Die pictures (https://www.vintage-radio.net/forum/showthread.php?t=165425)

jjl 8th Apr 2020 2:53 pm

Re: Die pictures
 
I worked at Applied Materials on software and electronics for ion implant machines from 1998 to 2003.
200mm (8 inch) wafers were the smallest size that the machines I worked on handled during this time. I first worked on a machine that handled 300mm (12 inch) wafers around 2000.

John

Oldtestgear 8th Apr 2020 5:33 pm

Re: Die pictures
 
Certainly the new equipment was 200 mm & above but many semiconductor manufacturers (especially analog) were still using 4" wafers. We were buying 4" wafer production right up until I Left in 2005. Same story but from different sides.

Phil

Noopy2014 1st May 2020 10:48 pm

Re: Die pictures
 
Quote:

Originally Posted by Noopy2014 (Post 1231802)
Quote:

Originally Posted by TonyDuell (Post 1231794)
Quote:

Originally Posted by merlinmaxwell (Post 1231719)
And people say engineering is boring.

But boring (whether it's sinking a well or making a cylinder on a lathe) is certainly part of engineering (Sorry, could not resist).

Getting on-topic, have you found any little cartoons or text on the dice? I am told that the MicroVAX CPU chip (at least one version) has a comment in Russian on it, for example.

I found some artwork... Have to search again on my website... ;D
The STM32 has some strange figures:
https://richis-lab.de/STM32_02.htm
https://richis-lab.de/images/STM32/02_05.jpg


You want to see silicon artwork? Today I found a dog (?) in a HP4401A:
Dog
The whole Story...

Radio Wrangler 2nd May 2020 11:56 am

Re: Die pictures
 
The letters HP in a heart is not surprising because this is a product line developed and made by HP's Loveland division, at Loveland in Colorado. They were quite aggressive at moving into product areas supposedly allocated to other divisions. The other divisions thought they got away with murder.

The other divisions in Colorado were 'the Springs' or Colorado Springs which did scopes and logic analysers. Fort Collins did something in computing that I was never involved with.

There were plenty of tensions within HP and a fair dose of inter-divisional rivalry. It behaved more like an industry than as a single company.

Look up John Wastle's memoir on the HP memory website. They published it pretty much as is, though a few names were changed although those in the know can decode them. It makes fascinating reading. I knew John for many years and yep, he's telling it like it was. Red in tooth and claw!

David

Noopy2014 2nd May 2020 12:01 pm

Re: Die pictures
 
Thanks a lot! Very interesting!


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