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Technology Stocks : Advanced Micro Devices - Moderated (AMD) -- Ignore unavailable to you. Want to Upgrade?

To: Ali Chen who wrote (51738)	8/20/2001 2:46:53 PM
From: heatsinker2	Read Replies (1) \| Respond to of 275872

Ali- I think you are wrong on all three counts. Well, my three reasons are all real possibilities. If you have been in the engineering profession for a number of years, 25 years for me, you would know this. Companies do use different safety margins and some companies really don't understand reliability very well. If you dispute this, well you have not been around the electronics industry that much. OTOH, you're absolutely right that some chips don't work properly above a certain temperature or during certain cycling conditions. And Intel chips do seem to get unstable when they get too hot. So that should be #4 on the list. And I think this is probably the reason for AMD's higher Tj. Oddly enough, most electronic product don't have this constraint. Usually thermal decisions are made based on a projected lifetime, not whether or not the box stops working at a particular temperature. That's why I forgot to include this possibility. But microprocessors are different.