Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1985-10-11
1987-05-12
Weisstuch, Aaron
Metal working
Method of mechanical manufacture
Assembling or joining
29589, 29590, 136258, 156345, 204298, 118718, 118719, 118723, 118724, 118729, 427 39, 427 74, 427 86, 4272555, H01L 3118
Patent
active
046638288
ABSTRACT:
A process and apparatus for contiuously producing a relatively large-area, lightweight array of thin film semiconductor alloy photovoltaic cells having no substrate includes depositing a semiconductor alloy film, such as amorphous silicon, on a traveling surrogate substrate, applying a support material to the traveling film to give it mechanical strength and separating the film and support material from the traveling surrogate substrate. The surrogate substrate is preferably an endless stainless steel band from which the deposited alloy film is repeatedly stripped and on which deposits are repeatedly made. The apparatus may provide for the deposition and patterning of a back electrode on the substrate before deposition of the alloy film to form one set of electrical interconnections for the array. The apparatus may also provide for the deposition and patterning of a transparent, electrically conducting layer on the alloy film, before application of the support material, in order to form a second set of electrical interconnections for the array. The apparatus may also apply a protective, support material to the rear of the alloy film.
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Energy Conversion Devices Inc.
Norris Lawrence G.
Siskind Marvin S.
Weisstuch Aaron
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