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Class Information
Number: 257/E21.382
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Processes or apparatus adapted for manufacture or treatment of semiconductor or solid-state devices or of parts thereof (epo) > Manufacture or treatment of semiconductor device (epo) > Device having at least one potential-jump barrier or surface barrier, e.g., pn junction, depletion layer, carrier concentration layer (epo) > Device having semiconductor body comprising group iv elements or group iii-v compounds with or without impurities, e.g., doping materials (epo) > Multi-step process for manufacture of device of bipolar type, e.g., diodes, transistors, thyristors, resistors, capacitors) (epo) > Device comprising three or more electrodes (epo) > Transistor (epo) > Field-effect controlled bipolar-type transi stor, e.g., insulated gate bipolar transistor (igbt) (epo)
Description: This subclass is indented under subclass E21.37. This subclass is substantially the same in scope as ECLA classification H01L21/331G.










Sub-classes under this class:

Class Number Class Name Patents
257/E21.383 Vertical insulated gate bipolar transistor (epo) 178


Patents under this class:
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Patent Number Title Of Patent Date Issued
8710510 High power insulated gate bipolar transistors Apr. 29, 2014
8692244 Semiconductor device Apr. 8, 2014
8659104 Field-effect magnetic sensor Feb. 25, 2014
8633510 IE-type trench gate IGBT Jan. 21, 2014
8610131 Silicon carbide insulated-gate bipolar transistor Dec. 17, 2013
8603885 Flat response device structures for bipolar junction transistors Dec. 10, 2013
8597993 Electrostatic discharge (ESD) device and method of fabricating Dec. 3, 2013
8586442 Manufacturing method for high voltage transistor Nov. 19, 2013
8581339 Structure of NPN-BJT for improving punch through between collector and emitter Nov. 12, 2013
8507327 Semiconductor device manufacturing method thereof Aug. 13, 2013
8501548 Method for producing a semiconductor device using laser annealing for selectively activating implanted dopants Aug. 6, 2013
8487343 Semiconductor device, semiconductor integrated circuit device for use of driving plasma display with using same, and plasma display apparatus Jul. 16, 2013
8482030 Insulated gate bipolar transistor and manufacturing method thereof Jul. 9, 2013
8482031 Lateral insulated gate bipolar transistors (LIGBTS) Jul. 9, 2013
8460975 Reverse block-type insulated gate bipolar transistor manufacturing method Jun. 11, 2013
8460976 Manufacturing method of SOI high-voltage power device Jun. 11, 2013
8455953 Semiconductor device and method of manufacturing semiconductor device Jun. 4, 2013
8450777 Method for manufacturing a reverse-conducting insulated gate bipolar transistor May. 28, 2013
8421157 Semiconductor device Apr. 16, 2013
8415712 Lateral insulated gate bipolar transistor (LIGBT) Apr. 9, 2013
8384123 Semiconductor device and method for manufacturing same Feb. 26, 2013
8377755 Method for fabricating SOI high voltage power chip with trenches Feb. 19, 2013
8367511 Manufacturing method for high voltage transistor Feb. 5, 2013
8330223 Bipolar transistor Dec. 11, 2012
8324044 Method of producing a semiconductor device with an aluminum or aluminum alloy electrode Dec. 4, 2012
8314002 Semiconductor device having increased switching speed Nov. 20, 2012
8294244 Semiconductor device having an enlarged emitter electrode Oct. 23, 2012
8278683 Lateral insulated gate bipolar transistor Oct. 2, 2012
8242537 IGBT with fast reverse recovery time rectifier and manufacturing method thereof Aug. 14, 2012
8236642 Fully isolated high-voltage MOS device Aug. 7, 2012
8188511 Semiconductor device and method of manufacturing thereof May. 29, 2012
8178365 Method of manufacturing semiconductor device May. 15, 2012
8120058 High-drive current MOSFET Feb. 21, 2012
8115256 Semiconductor device Feb. 14, 2012
8097917 Silicon carbide semiconductor device Jan. 17, 2012
8080457 Fabrication method of power semiconductor structure with low gate charge Dec. 20, 2011
8049273 Semiconductor device for improving the peak induced voltage in switching converter Nov. 1, 2011
8017482 Method of manufacturing semiconductor device Sep. 13, 2011
7999285 Insulated gate bipolar transistor and method for manufacturing the same Aug. 16, 2011
7999317 Semiconductor device and manufacturing method thereof Aug. 16, 2011
7986003 Semiconductor device and manufacturing method thereof Jul. 26, 2011
7968940 Insulated gate bipolar transistor device comprising a depletion-mode MOSFET Jun. 28, 2011
7932538 Insulated gate bipolar transistor and method of fabricating the same Apr. 26, 2011
7897452 Method of producing a semiconductor device with an aluminum or aluminum alloy rear electrode Mar. 1, 2011
7867857 Transistor and method for manufacturing same Jan. 11, 2011
7843039 Stress-modified device structures, methods of fabricating such stress-modified device structures, and design structures for an integrated circuit Nov. 30, 2010
7829955 Semiconductor device Nov. 9, 2010
7800183 Semiconductor device Sep. 21, 2010
7795638 Semiconductor device with a U-shape drift region Sep. 14, 2010
7790564 Methods for fabricating active devices on a semiconductor-on-insulator substrate utilizing multiple depth shallow trench isolations Sep. 7, 2010

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