Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Elmer who wrote (82285)	12/7/1999 10:18:00 PM
From: Mani1	Read Replies (2) \| Respond to of 1576588

Elmer, are you sure that there is thermal testing done for every chip after manufacturing it? Mani

To: Elmer who wrote (82285)	12/7/1999 10:27:00 PM
From: Bill Jackson	Respond to of 1576588

Elmer, Sniff, sniff, another red herring? Where did I say that the test procedure would involve scopes in the production environment? I said if you hooked one up and looked you would find an average current with a few billion microscopic spikes superimposed and of low height(called 'grass' or 'fur' in the trade, grass you can see the spikes, fur is a blur) A test jig for any CPU will run a multicyclic test on a part without human intervention using parameters obtained by engineers with ammeters and scopes and calorimeters etc and it will indeed run those test rapidly. I am not sure how long it would take to step through them all, but some are built in to the CPU and they start at power up and then give an output. If it fails that it goes to fault analysis. Those that pass the power up test get a bigger suite of tests. (POST for mobos is different and is bios mediated). An intel or AMD asembly person would be able to quantify this better than i do. Bill