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Class Information
Number: 257/E21.427
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 the manufacture of unipolar device (epo) > Field-effect transistor (epo) > With an insulated gate (epo) > Lateral single gate silicon transistor (epo) > With asymmetry in channel direction, e.g., high-voltage lateral transistor with channel containing layer, e.g., p-base (epo)
Description: This subclass is indented under subclass E21.424. This subclass is substantially the same in scope as ECLA classification H01L21/336H4.

Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13

Patent Number Title Of Patent Date Issued
8674455 Semiconductor device Mar. 18, 2014
8674729 High voltage semiconductor device and driving circuit Mar. 18, 2014
8669149 Semiconductor structure and fabrication method thereof Mar. 11, 2014
8664728 Power transistor with protected channel Mar. 4, 2014
8643137 Short channel lateral MOSFET Feb. 4, 2014
RE44730 Method of manufacturing a MOSFET structure Jan. 28, 2014
8633075 Semiconductor device with high voltage transistor Jan. 21, 2014
8629026 Source tip optimization for high voltage transistor devices Jan. 14, 2014
8592901 Metal oxide semiconductor field transistor and method of fabricating the same Nov. 26, 2013
8574991 Asymmetric transistor devices formed by asymmetric spacers and tilted implantation Nov. 5, 2013
8569138 Drain extended MOS transistor and method for fabricating the same Oct. 29, 2013
8524563 Semiconductor device with strain-inducing regions and method thereof Sep. 3, 2013
8410549 Structure and fabrication of field-effect transistor using empty well in combination with source/drain extensions or/and halo pocket Apr. 2, 2013
8405148 Method of fabricating a lateral double-diffused MOSFET (LDMOS) transistor and a conventional CMOS transistor Mar. 26, 2013
8389341 Lateral power MOSFET with high breakdown voltage and low on-resistance Mar. 5, 2013
8377755 Method for fabricating SOI high voltage power chip with trenches Feb. 19, 2013
8362560 Field effects transistor with asymmetric abrupt junction implant Jan. 29, 2013
8338265 Silicided trench contact to buried conductive layer Dec. 25, 2012
8299548 Method for manufacturing semiconductor device and semiconductor device Oct. 30, 2012
8298897 Asymmetric channel MOSFET Oct. 30, 2012
8298886 Electronic device including doped regions between channel and drain regions and a process of forming the same Oct. 30, 2012
8278710 Guard ring integrated LDMOS Oct. 2, 2012
8268691 High voltage transistor with improved driving current Sep. 18, 2012
8237197 Asymmetric channel MOSFET Aug. 7, 2012
8227871 Semiconductor device and method for manufacturing the same Jul. 24, 2012
8217452 Enhanced HVPMOS Jul. 10, 2012
8212329 Short channel lateral MOSFET and method Jul. 3, 2012
8183632 Semiconductor device and method of manufacturing the same May. 22, 2012
8158482 Asymmetric transistor devices formed by asymmetric spacers and tilted implantation Apr. 17, 2012
8148771 Semiconductor device and method to manufacture thereof Apr. 3, 2012
8138550 Method of manufacturing a semiconductor device and a semiconductor device Mar. 20, 2012
8119487 Semiconductor device and method for fabricating the same Feb. 21, 2012
8053319 Method of forming a high voltage device Nov. 8, 2011
8044462 Process for manufacturing a power device on a semiconductor substrate and corresponding device Oct. 25, 2011
7994612 FinFETs single-sided implant formation Aug. 9, 2011
7981739 Method of fabricating a lateral double-diffused MOSFET (LDMOS) transistor and a conventional CMOS transistor Jul. 19, 2011
7906810 LDMOS device for ESD protection circuit Mar. 15, 2011
7875517 Self-aligned complementary LDMOS Jan. 25, 2011
7851329 Semiconductor device having EDMOS transistor and method for manufacturing the same Dec. 14, 2010
7851314 Short channel lateral MOSFET and method Dec. 14, 2010
7808102 Multi-die DC-DC boost power converter with efficient packaging Oct. 5, 2010
7790589 Method of providing enhanced breakdown by diluted doping profiles in high-voltage transistors Sep. 7, 2010
7768071 Stabilizing breakdown voltages by forming tunnels for ultra-high voltage devices Aug. 3, 2010
7750402 Lateral planar type power semiconductor device including drain buried region immediately below drain region and its manufacturing method Jul. 6, 2010
7709330 High voltage MOSFET having Si/SiGe heterojunction structure and method of manufacturing the same May. 4, 2010
7692213 Integrated circuit system employing a condensation process Apr. 6, 2010
7692217 Matched analog CMOS transistors with extension wells Apr. 6, 2010
7682888 Methods of forming NMOS/PMOS transistors with source/drains including strained materials Mar. 23, 2010
7670936 Nitridation of gate oxide by laser processing Mar. 2, 2010
7666745 Method of manufacturing a semiconductor device and a semiconductor device Feb. 23, 2010

1 2 3 4 5 6 7 8 9 10 11 12 13

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