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Class Information
Number: 257/E31.05
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Semiconductor devices responsive or sensitive to electromagnetic radiation (e.g., infrared radiation, adapted for conversion of radiation into electrical energy or for control of electrical energy by such radiation processes, or apparatus peculiar to manufacture or treatment of such devices, or of parts thereof) (epo) > Characterized by semiconductor body (epo) > Characterized by semiconductor body crystalline structure or plane (epo) > Including amorphous semiconductor (epo) > Including only group iv element (epo) > Having light-induced characteristic variation (e.g., staebler-wronski effect) (epo)
Description: This subclass is indented under subclass E31.048. This subclass is substantially the same in scope as ECLA classification H01L31/0376B3.










Patents under this class:

Patent Number Title Of Patent Date Issued
6743988 Optically controlled switches Jun. 1, 2004
6384319 Non-single-crystal solar cell May. 7, 2002
6147295 Sunlight energy conversion apparatus, and air circulation system Nov. 14, 2000
5230753 Photostable amorphous silicon-germanium alloys Jul. 27, 1993
5114498 Photovoltaic device May. 19, 1992
4965225 Method of stabilizing amorphous semiconductors Oct. 23, 1990
4799968 Photovoltaic device Jan. 24, 1989
4555586 Photovoltiac device having long term energy conversion stability and method of producing same Nov. 26, 1985
4371738 Method of restoring degraded solar cells Feb. 1, 1983











 
 
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