Semiconductor device manufacturing: process – Coating of substrate containing semiconductor region or of... – By reaction with substrate
Reexamination Certificate
2008-04-01
2008-04-01
Lebentritt, Michael (Department: 2812)
Semiconductor device manufacturing: process
Coating of substrate containing semiconductor region or of...
By reaction with substrate
C438S478000, C438S680000, C438S788000, C438S792000, C438S775000, C438S758000, C257SE21268, C257SE21293, C257SE21101
Reexamination Certificate
active
11368481
ABSTRACT:
An insulating film is formed on a target substrate by CVD, in a process field to be selectively supplied with a first process gas containing a silane family gas, a second process gas containing a nitriding or oxynitriding gas, and a third process gas containing a carbon hydride gas. This method alternately includes first to fourth steps. The first step performs supply of the first and third process gases to the field while stopping supply of the second process gas to the process field. The second step stops supply of the first to third process gases to the field. The third step performs supply of the second process gas to the field while stopping supply of the first and third process gases to the field. The fourth step stops supply of the first to third process gases to the field.
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Chou Pao-Hwa
Hasebe Kazuhide
Ahmadi Mohsen
Lebentritt Michael
Tokyo Electron Limited
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