The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 2002
Filed:
Jul. 23, 2001
Akira Sakai, Kyoto-fu, JP;
Yasushi Fujioka, Kyoto-fu, JP;
Shotaro Okabe, Nara, JP;
Masahiro Kanai, Tokyo, JP;
Tadashi Sawayama, Kyoto-fu, JP;
Yuzo Koda, Kyoto-fu, JP;
Takahiro Yajima, Kyoto-fu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A process for producing a semiconductor device such as a photovoltaic element including a solar cell or a photosensor having a photoelectric conversion semiconductor layer formed by sequentially forming a p-type or n-type semiconductor layer composed of a non-single crystalline silicon series semiconductor material, an i-type semiconductor layer composed of a non-single crystalline silicon series semiconductor material, and an n-type or p-type semiconductor layer composed of a non-single crystalline silicon series semiconductor material on a substrate by means of plasma CVD, characterized in that at least one i-type semiconductor as said i-type semiconductor layer is formed in a discharge chamber having a cathode electrode by means of VHF plasma CVD using a silicon-containing raw material gas, wherein a VHF power of a wattage which is two times or less that of a VHF power required for decomposing 100% of said silicon-containing raw material gas is applied to said cathode electrode.