silicon price of a chip

excluding all external management prices... wot is the cost of a PIII processor... i have heard the silicon cost is 22 cents..??

how many dies are made on a single wafer. i guess most of these plants have migrated from 6 inch to 8 inch wafers.

i think depending on the die size of the chip, there could be anything between 40 to 100 dies on a wafer. then consider the yeild of the wafer. sometime ago a yeild of 45% was considered to be pretty good. maybe today its improved. anyway, assuming 50% of the dies are bad, you get about 20 to 50 working dies on a wafer.

if a wafer costs 400 bucks, then a single die might cost about 8 to 20 bucks.

now add the R&D, engineering, technology and investment that goes behind making this chip.

how much coould it be???

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well, i must be pretty out of sync with semiconductor tech. last time I read I was in the college doing engg. thats four years.

I once read that AMD had problems with the Austin fab that it was yeilding less than 10% on the K6 wafer. Was it true? And some other fab was supposed to be delivering at 45% which was then pretty good rate.

12 inch tech should really get the prod cost down, maybe this is one of the reasons chips get cheaper by the day?

girish

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I dont know about 300 die a wafer, every semiconductor device has a different size, and they all for the most part share the same silicon.(silicon quality levels differ ofcourse but the sizing is universal.)

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