Active solid-state devices (e.g. – transistors – solid-state diode – Non-single crystal – or recrystallized – semiconductor... – Field effect device in non-single crystal – or...
Patent
1996-01-26
1998-01-06
Thomas, Tom
Active solid-state devices (e.g., transistors, solid-state diode
Non-single crystal, or recrystallized, semiconductor...
Field effect device in non-single crystal, or...
257 69, 257 70, 257 72, 257 75, H07L 29184
Patent
active
057058296
ABSTRACT:
A semiconductor device using a crystalline semiconductor film is manufactured. The crystalline semiconductor film is formed by providing an amorphous silicon film with a catalyst metal for promoting a crystallization thereof and then heated for performing a thermal crystallization, following which the crystallized film is further exposed to a laser light for improving the crystallinity. The concentration of the catalyst metal in the semiconductor film and the location of the region to be added with the catalyst metal are so selected in order that a desired crystallinity and a desired crystal structure such as a vertical crystal growth or lateral crystal growth can be obtained. Further, active elements and driver elements of a circuit substrate for an active matrix type liquid crystal device are formed by such semiconductor devices having a desired crystallinity and crystal structure respectively.
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Miyanaga Akiharu
Ohtani Hisashi
Takemura Yasuhiko
Butts Karlton C.
Ferguson Jr. Gerald J.
Hardy David B.
Semiconductor Energy Laboratory Co,. Ltd.
Thomas Tom
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