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Class Information
Number: 257/E21.384
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) > Vertical insulated gate bipolar transistor (epo) > With recessed gate (epo)
Description: This subclass is indented under subclass E21.383. This subclass is substantially the same in scope as ECLA classification H01L21/331G2R.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8642401 Insulated gate type semiconductor device and method for fabricating the same Feb. 4, 2014
8530966 Semiconductor device Sep. 10, 2013
8476137 Methods of FinFET height control Jul. 2, 2013
RE44236 Method for manufacturing semiconductor device May. 21, 2013
8415671 Wide band-gap MOSFETs having a heterojunction under gate trenches thereof and related methods of forming such devices Apr. 9, 2013
8389364 Method of fabricating a transistor Mar. 5, 2013
8377775 Insulated gate type semiconductor device and method for fabricating the same Feb. 19, 2013
8373209 Semiconductor device having D mode JFET and E mode JFET and method for manufacturing the same Feb. 12, 2013
8338887 Buried gate transistor Dec. 25, 2012
8304829 Trench-based power semiconductor devices with increased breakdown voltage characteristics Nov. 6, 2012
8258032 Power semiconductor devices and methods for manufacturing the same Sep. 4, 2012
8247298 Method of manufacturing semiconductor device Aug. 21, 2012
8242556 Vertical and trench type insulated gate MOS semiconductor device Aug. 14, 2012
8188531 Dual gate of semiconductor device capable of forming a layer doped in high concentration over a recessed portion of substrate for forming dual gate with recess channel structure and method for May. 29, 2012
8178947 Semiconductor device May. 15, 2012
8168498 Insulated gate type semiconductor device and method for fabricating the same May. 1, 2012
8164162 Power semiconductor devices integrated with clamp diodes sharing same gate metal pad Apr. 24, 2012
8148224 Insulated gate type semiconductor device and method for fabricating the same Apr. 3, 2012
8093621 VTS insulated gate bipolar transistor Jan. 10, 2012
8084814 Semiconductor device and method of producing the same Dec. 27, 2011
8080457 Fabrication method of power semiconductor structure with low gate charge Dec. 20, 2011
8058127 Manufacturing method of semiconductor power devices Nov. 15, 2011
8048742 Transistor including bulb-type recess channel and method for fabricating the same Nov. 1, 2011
8012834 Method of fabricating semiconductor apparatus having saddle-fin transistor and semiconductor apparatus fabricated thereby Sep. 6, 2011
7986003 Semiconductor device and manufacturing method thereof Jul. 26, 2011
7972928 Insulated gate-type semiconductor device and manufacturing method thereof Jul. 5, 2011
7935577 Method for forming shielded gate field effect transistor using spacers May. 3, 2011
7915121 Method for manufacturing semiconductor device having buried gate Mar. 29, 2011
7851312 Semiconductor component and method of manufacture Dec. 14, 2010
7829418 Semiconductor apparatus and method for fabricating the same Nov. 9, 2010
7816208 Method of manufacturing semiconductor device having trench-gate transistor Oct. 19, 2010
7800183 Semiconductor device Sep. 21, 2010
7776660 Manufacturing method of a semiconductor device Aug. 17, 2010
7777274 Power semiconductor component having a field electrode and method for producing this component Aug. 17, 2010
7772103 Method of forming a wire structure Aug. 10, 2010
7737017 Semiconductor device having recess gate and isolation structure and method for fabricating the same Jun. 15, 2010
7737490 Vertical and trench type insulated gate MOS semiconductor device Jun. 15, 2010
7728380 Semiconductor device Jun. 1, 2010
7723184 Semiconductor device and manufacture method therefor May. 25, 2010
7709328 Semiconductor device and method for fabricating same May. 4, 2010
7696045 Method of manufacturing semiconductor device Apr. 13, 2010
7645671 Recessed access device for a memory Jan. 12, 2010
7638395 Semiconductor device fabricating method Dec. 29, 2009
7622768 Semiconductor device and method of manufacturing thereof Nov. 24, 2009
7611947 Method of manufacturing semiconductor device Nov. 3, 2009
7601603 Method for manufacturing semiconductor device Oct. 13, 2009
7592233 Method for forming a memory device with a recessed gate Sep. 22, 2009
7588985 Method for fabricating fin transistor Sep. 15, 2009
7585732 Insulated gate type semiconductor device and method for fabricating the same Sep. 8, 2009
7507630 Method of fabricating a semiconductor device Mar. 24, 2009

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