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Class Information
Number: 257/E31.04
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)
Description: This subclass is indented under subclass E31.002. This subclass is substantially the same in scope as ECLA classification H01L31/036.

Sub-classes under this class:

Class Number Class Name Patents
257/E31.047 Including amorphous semiconductor (epo) 56
257/E31.051 Including other nonmonocrystalline material (e.g., semiconductor particles embedded in insulating material) (epo) 27
257/E31.043 Including polycrystalline semiconductor (epo) 51
257/E31.041 Including thin film deposited on metallic or insulating substrate (epo) 110

Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
6130380 Solar cell and fabrication method thereof Oct. 10, 2000
RE36156 Columnar-grained polycrystalline solar cell and process of manufacture Mar. 23, 1999
5714765 Method of fabricating a compositional semiconductor device Feb. 3, 1998
5702538 Silicon semiconductor wafer solar cell and process for producing said wafer Dec. 30, 1997
5677236 Process for forming a thin microcrystalline silicon semiconductor film Oct. 14, 1997
5650363 Method for processing thin wafers and solar cells of crystalline silicon Jul. 22, 1997
5599403 Semiconductor device containing microcrystalline germanium & method for producing the same Feb. 4, 1997
5579388 Network-independent electrical energy user with additional, photovoltaic power supply Nov. 26, 1996
5496416 Columnar-grained polycrystalline solar cell and process of manufacture Mar. 5, 1996
5336335 Columnar-grained polycrystalline solar cell and process of manufacture Aug. 9, 1994
5163179 Platinum silicide infrared diode Nov. 10, 1992
5091765 Photoconductive cell with zinc oxide tetrapod crystals Feb. 25, 1992
5082793 Method for making solid state device utilizing ion implantation techniques Jan. 21, 1992
5066340 Photovoltaic device Nov. 19, 1991
4946800 Method for making solid-state device utilizing isolation grooves Aug. 7, 1990
4916513 Dielectrically isolated integrated circuit structure Apr. 10, 1990
4548658 Growth of lattice-graded epilayers Oct. 22, 1985
4498092 Semiconductor photoelectric conversion device Feb. 5, 1985
4371406 Solid-state device Feb. 1, 1983
4321615 Manufacture of an infra-red detector element, and detection elements so manufactured Mar. 23, 1982
4297717 Semiconductor device Oct. 27, 1981
4136435 Method for making solid-state device Jan. 30, 1979

1 2

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