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Class Information
Number: 438/93
Name: Semiconductor device manufacturing: process > Making device or circuit responsive to nonelectrical signal > Responsive to electromagnetic radiation > Compound semiconductor
Description: Process for making a device responsive to electromagnetic radiation having a compound semiconductor.

Sub-classes under this class:

Class Number Class Name Patents
438/95 Chalcogen (i.e., oxygen (o), sulfur (s), selenium (se), tellurium (te)) containing 838
438/94 Heterojunction 407

Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
8252621 Method for forming copper indium gallium chalcogenide layer with optimized gallium content at its surface Aug. 28, 2012
8227291 Method of manufacturing stacked-layered thin film solar cell with a light-absorbing layer having band gradient Jul. 24, 2012
8227324 Method for producing group III nitride-based compound semiconductor crystal Jul. 24, 2012
8227359 Method for manufacturing group III nitride semiconductor layer, method for manufacturing group III nitride semiconductor light-emitting device, and group III nitride semiconductor light-emitti Jul. 24, 2012
8211727 Group III nitride semiconductor multilayer structure and production method thereof Jul. 3, 2012
8193442 Coated nanoparticles and quantum dots for solution-based fabrication of photovoltaic cells Jun. 5, 2012
8187904 Methods of forming thin layers of photovoltaic absorbers May. 29, 2012
8187913 Process for producing photoelectric conversion devices May. 29, 2012
8178375 Method of determining compound ratio of compound semiconductor for light generating device May. 15, 2012
8173891 Monolithic, multi-bandgap, tandem, ultra-thin, strain-counterbalanced, photovoltaic energy converters with optimal subcell bandgaps May. 8, 2012
8173475 Method of producing photoelectric conversion device having a multilayer structure formed on a substrate May. 8, 2012
8163581 Semiconductor and optoelectronic devices Apr. 24, 2012
8138009 Method of fabricating thin film solar cell and apparatus for fabricating thin film solar cell Mar. 20, 2012
8129615 Multiband semiconductor compositions for photovoltaic devices Mar. 6, 2012
8129207 Light emitting diode having a thermal conductive substrate and method of fabricating the same Mar. 6, 2012
8110427 Stacked-layered thin film solar cell and manufacturing method thereof Feb. 7, 2012
8101856 Quantum well GaP/Si tandem photovoltaic cells Jan. 24, 2012
8093095 Semiconductor device with a bulk single crystal on a substrate Jan. 10, 2012
8093094 Blocking contacts for N-type cadmium zinc telluride Jan. 10, 2012
8080484 Method for manufacturing group III nitride semiconductor layer, method for manufacturing group III nitride semiconductor light-emitting device, and group III nitride semiconductor light-emitti Dec. 20, 2011
8071419 Thin-film devices formed from solid particles Dec. 6, 2011
8072801 Method for creating nonequilibrium photodetectors with single carrier species barriers Dec. 6, 2011
8067687 High-efficiency, monolithic, multi-bandgap, tandem photovoltaic energy converters Nov. 29, 2011
8034654 Method for forming a GexSi1-x buffer layer of solar-energy battery on a silicon wafer Oct. 11, 2011
8021903 Method for fabricating micro-lens and micro-lens integrated optoelectronic devices using selective etch of compound semiconductor Sep. 20, 2011
8017415 Dual sided processing and devices based on freestanding nitride and zinc oxide films Sep. 13, 2011
8012788 Multi-stage formation of thin-films for photovoltaic devices Sep. 6, 2011
7999178 Solar cell and method of producing the same Aug. 16, 2011
7999344 Optoelectronic device with germanium photodetector Aug. 16, 2011
7972892 Light emitting device and method of fabricating the same Jul. 5, 2011
7964436 Co-sputter deposition of metal-doped chalcogenides Jun. 21, 2011
7964434 Sodium doping method and system of CIGS based materials using large scale batch processing Jun. 21, 2011
7955890 Methods for forming an amorphous silicon film in display devices Jun. 7, 2011
7951639 Method of zinc oxide film grown on the epitaxial lateral overgrowth gallium nitride template May. 31, 2011
7951632 Optical device and method of making May. 31, 2011
7947524 Humidity control and method for thin film photovoltaic materials May. 24, 2011
7948010 Dual seed semiconductor photodetectors May. 24, 2011
7943415 Methods of sputtering cadmium sulfide layers for use in cadmium telluride based thin film photovoltaic devices May. 17, 2011
7936044 Non-volatile memory devices and methods of fabricating the same May. 3, 2011
7928473 Depletion-less photodiode with suppressed dark current and method for producing the same Apr. 19, 2011
7915072 Non-vacuum coating method for preparing light absorbing layer of solar cell Mar. 29, 2011
7910396 Three-stage formation of thin-films for photovoltaic devices Mar. 22, 2011
7897416 Composition control for photovoltaic thin film manufacturing Mar. 1, 2011
7888256 Process for forming an interface between silicon carbide and silicon oxide with low density of states Feb. 15, 2011
7883998 Vapor phase growth method Feb. 8, 2011
7875511 CMOS structure including differential channel stressing layer compositions Jan. 25, 2011
7858872 Back contact for thin film solar cells Dec. 28, 2010
7855096 Method for manufacturing semiconductor device Dec. 21, 2010
7845073 Method of manufacturing circuit board embedding thin film capacitor Dec. 7, 2010
7842534 Method for forming a compound semi-conductor thin-film Nov. 30, 2010

1 2 3 4 5 6 7

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