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Class Information
Number: 257/E31.069
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) > Adapted to control current flow through device (e.g., photoresistor) (epo) > For device having potential or surface barrier (e.g., phototransistor) (epo) > Device sensitive to infrared, visible, or ultraviolet radiation (epo) > Characterized by two potential or surface barriers (epo) > Bipolar phototransistor (epo)
Description: This subclass is indented under subclass E31.068. This subclass is substantially the same in scope as ECLA classification H01L31/11B.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8680640 Solid-state imaging device Mar. 25, 2014
8664739 Image sensor comprising isolated germanium photodetectors integrated with a silicon substrate and silicon circuitry Mar. 4, 2014
8552414 Electronically scannable multiplexing device Oct. 8, 2013
8541813 Homojunction type high-speed photodiode Sep. 24, 2013
8415763 Tunable semiconductor device Apr. 9, 2013
8368122 Multiple-junction photoelectric device Feb. 5, 2013
8338863 Vertical heterojunction bipolar transistors with reduced base-collector junction capacitance Dec. 25, 2012
8314446 Photo-detector array, semiconductor image intensifier and methods of making and using the same Nov. 20, 2012
8299484 Optoelectronic semiconductor chip Oct. 30, 2012
8242000 Method for making nanowire element Aug. 14, 2012
8232156 Vertical heterojunction bipolar transistors with reduced base-collector junction capacitance Jul. 31, 2012
8227882 Light-sensitive component with increased blue sensitivity, method for the production thereof, and operating method Jul. 24, 2012
8227832 SiGe heterojunction bipolar transistor multi-finger structure Jul. 24, 2012
8178936 Double-side mountable MEMS package May. 15, 2012
7892880 Method of manufacturing a photo-detector array device with ROIC monolithically integrated for laser-radar image signal Feb. 22, 2011
7888765 Optical semiconductor device Feb. 15, 2011
7851810 Method of manufacturing semiconductor light emitting device Dec. 14, 2010
7816755 Photoelectric conversion device with isolation arrangement that reduces pixel space without reducing resolution or sensitivity Oct. 19, 2010
7687875 Image sensors including photoelectric converting units having multiple impurity regions Mar. 30, 2010
7420228 Bipolar transistor comprising carbon-doped semiconductor Sep. 2, 2008
7271070 Method for producing transistors Sep. 18, 2007
7132677 Super bright light emitting diode of nanorod array structure having InGaN quantum well and method for manufacturing the same Nov. 7, 2006
6794682 Semiconductor device, method for manufacturing the same, and radiation detector Sep. 21, 2004
6653715 Bipolar transistor Nov. 25, 2003
6632699 Process for making a color selective Si detector array Oct. 14, 2003
6624449 Three terminal edge illuminated epilayer waveguide phototransistor Sep. 23, 2003
6580106 CMOS image sensor with complete pixel reset without kTC noise generation Jun. 17, 2003
6525348 Two terminal edge illuminated epilayer waveguide phototransistor Feb. 25, 2003
6469367 Bipolar transistor Oct. 22, 2002
6255709 Color-selective SI detector array Jul. 3, 2001
6137123 High gain GaN/AlGaN heterojunction phototransistor Oct. 24, 2000
6002142 Integrated optoelectronic structures incorporating P-type and N-type layer disordered regions Dec. 14, 1999
5994162 Integrated circuit-compatible photo detector device and fabrication process Nov. 30, 1999
5889296 Semiconductor optical device and an optical processing system that uses such a semiconductor optical system Mar. 30, 1999
5844253 High speed semiconductor phototransistor Dec. 1, 1998
5734191 Contactless capacitor-coupled bipolar active pixel sensor with integrated electronic shutter Mar. 31, 1998
5708281 Semiconductor device and photoelectric conversion apparatus using the same Jan. 13, 1998
5677551 Semiconductor optical device and an optical processing system that uses such a semiconductor optical system Oct. 14, 1997
5612255 One dimensional silicon quantum wire devices and the method of manufacture thereof Mar. 18, 1997
5604364 Photoelectric converter with vertical output lines Feb. 18, 1997
5602413 Avalanche phototransistor Feb. 11, 1997
5598023 Photoelectric converting apparatus Jan. 28, 1997
5576237 Method of manufacturing a capacitor coupled contactless imager with high resolution and wide dynamic range Nov. 19, 1996
5566044 Base capacitor coupled photosensor with emitter tunnel oxide for very wide dynamic range in a contactless imaging array Oct. 15, 1996
5563431 Photoelectrical converter with refresh means Oct. 8, 1996
5557117 Heterojunction bipolar transistor and integrated circuit device using the same Sep. 17, 1996
5552619 Capacitor coupled contactless imager with high resolution and wide dynamic range Sep. 3, 1996
5517052 Deep-diffused phototransistor May. 14, 1996
5500550 Photoelectric converting device Mar. 19, 1996
5483096 Photo sensor Jan. 9, 1996

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