Fishing – trapping – and vermin destroying
Patent
1991-06-20
1992-10-13
Chaudhuri, Oiik
Fishing, trapping, and vermin destroying
437109, 437233, 437967, 136258, H01L 310368
Patent
active
051550512
ABSTRACT:
A method of manufacturing a photovoltaic device, wherein an amorphous semiconductor layer of one conductivity type doped with impurities which determine the conductivity type is formed on a substrate having a conductive surface, an insulating film is formed on this amorphous semiconductor layer, the insulating film is patterned to partially form aperture regions where the surface of said amorphous semiconductor layer is exposed, an intrinsic amorphous semiconductor layer on said insulating film and the aperture regions formed over the substrate, the amorphous semiconductor layer of one conductivity type and the intrinsic amorphous semiconductor layer are thermally treated, crystallization is advanced using the amorphous semiconductor layer of one conductivity type located beneath said aperture region as a core to form a polycrystal semiconductor layer of one conductivity type, a semiconductor layer of the other conductivity type is formed on this polycrystal semiconductor layer, and an electrode is formed in contact with the semiconductor layer region of the other conductivity type located over said aperture regions.
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Iwata Hiroshi
Noguchi Shigeru
Sano Keiichi
Chaudhuri Oiik
Fasse W. G.
Fourson G.
Sanyo Electric Co,. Ltd.
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