Semiconductor device and method of manufacturing the same

Details Semiconductor device and method of manufacturing the same Semiconductor device and method of manufacturing the same

2007-05-01

2007-05-01

Booth, Richard A. (Department: 2812)

Semiconductor device manufacturing: process

Making field effect device having pair of active regions...

On insulating substrate or layer

C257SE21561

Reexamination Certificate

active

10141451

ABSTRACT:
The sizes of crystal masses are made to be a uniform in a crystalline silicon film obtained by a thermal crystallization method in which a metal element is used. An amorphous silicon film to be crystallized is doped with a metal element that accelerates crystallization, and then irradiated with laser light (with an energy which is not large enough to melt the film and which is large enough to allow the metal element to diffuse in the solid silicon film) from the back side of a light-transmissive substrate. Thereafter, heat treatment is performed to obtain a crystalline silicon film. Thus crystal masses in the crystalline silicon film can have a uniform size and the problem of fluctuation between TFTs can be solved.

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English abstract re Japanese Patent Application No. JP-078329, published Mar. 22, 1996.

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