Semiconductor device manufacturing: process – Making field effect device having pair of active regions... – On insulating substrate or layer
Reexamination Certificate
2006-09-11
2008-10-28
Chaudhari, Chandra (Department: 2891)
Semiconductor device manufacturing: process
Making field effect device having pair of active regions...
On insulating substrate or layer
C438S166000, C438S474000, C257SE21134
Reexamination Certificate
active
07442592
ABSTRACT:
A technique of reducing fluctuation between elements is provided in which a semiconductor film having a crystal structure is obtained by using a metal element that accelerates crystallization of a semiconductor film and then the metal element remaining in the film is removed effectively. A barrier layer is formed on a semiconductor film having a crystal structure by plasma CVD from monosilane and nitrous oxide as material gas. In a step of forming a gettering site, a semiconductor film having an amorphous structure and containing a high concentration of noble gas element, specifically, 1×1020to 1×1021/cm3, is formed by plasma CVD. The film is typically an amorphous silicon film. Then gettering is conducted.
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Naoharu Sugiyama,Strained Silicon Crystal on SiGe Substrate, Applied Physics, vol. 69, No. 11, Nov. 1, 2000, pp. 1315-1319.
Asami Taketomi
Ichijo Mitsuhiro
Suzuki Noriyoshi
Chaudhari Chandra
Robinson Eric J.
Robinson Intellectual Property Law Office P.C.
Semiconductor Energy Laboratory Co,. Ltd.
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