Method for removing resist from semiconductor device

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United States of America Patent

PATENT NO 4789427
SERIAL NO

07051396

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Abstract

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A method for removing a resist on a layer formed on a semiconductor substrate includes the steps of removing a portion of the resist by plasma processing and removing the remaining resist by a chemical process. This method prevents the entry of heavy metal particles contained in the resist into the semiconductor substrate, so that a functional region formed in the semiconductor substrate is not contaminated by the heavy metal particles. As a result, destruction of the functional elements formed in the functional region is prevented, and thus the minority carrier generation lifetime in the device is not reduced.

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Patent Owner(s)

  • FUJITSU LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujimura, Shuzo Tokyo, JP 42 1704
Kato, Yoshikazu Mizusawa, JP 59 443
Mochizuki, Syouzi Mizusawa, JP 1 10

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