Formerly About Applied Materials Message Board

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Politics : Formerly About Applied Materials

AMAT 301.11

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Jan 9 9:30 AM EST

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To: khacha who wrote (51018)	8/22/2001 4:32:51 PM
From: StanX Long	Read Replies (1) of 70976

Front end make the chips during the hundreds of step. During this phase the chip / equipment must be running in a class 100 (typically) or better room. Up until it very last front end process the rooms are very clean and expensive to maintain. After the chip is "Cooked" it is move the the Back-End where the wafer hold some four hundred chips on it, it cut up into the individual die. This is a very dirty process and the rooms are too. Much less expense in the equip and room due to cleanroom requirements are much less. Front end is clean and expensive to stay that way, while back end is dirty and stays that way. :0) Just a thought. Stan

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