Nippon Sheet Glass Company, Limited

Tomonori Yamaoka

Keiji Oyoshi

Provided herein is a process for producing a polycrystalline semiconductor film at a low temperature. The process comprises the steps of depositing on a glass substrate by plasma CVD an amorphous silicon film containing the crystal phase as well as hydrogen, heating the film using a heater, thereby releasing hydrogen from the film, and growing the crystal phase by silicon ion implantation, thereby changing the amorphous silicon film into a polycrystalline silicon film containing crystal grains. The releasing of hydrogen from the amorphous silicon film permits the polycrystalline silicon film to be formed at a lower temperature than before without the growth of crystal phase being inhibited.

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Tsukuba, Japan

Tomonori Yamaoka