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

To: heatsinker2 who wrote (51937)	8/21/2001 8:00:44 PM
From: Bill Jackson	Read Replies (4) \| Respond to of 275872

heatsinker2, Well, that bad layout means more clusters and thus hotspots that stop working sooner then the bulk of the area. That means that Intel has more to lose with SOI as the extra oxide layer hinders heat transfer. This also means that Intel has more to gain from Si28 epitaxial layers. If you form an insulating layer and then deposit an epi layer on it how do you get the epi layer to have a perfect ccrystal structure? I assume the insulating layer is also formed from the silicon by the right type of doping and so the epi layer just builds on that crystallinity. I just assume this as I do not know for sure. What happens if they use sapphire or diamnod for the inssulation? Do they lay a thin wafer of silicon onto it and bond it in some way and etch it thinner? I cannot see them making an epi layer over another material and having a perfect crystal array form? Bill