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Class Information
Number: 257/E21.429
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 a recessed gate, e.g., lateral u-mos (epo) > Using etching to form recess at gate location (epo)
Description: This subclass is indented under subclass E21.428. This subclass is substantially the same in scope as ECLA classification H01L21/336H6B.










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

Patent Number Title Of Patent Date Issued
8673704 FinFET and method for manufacturing the same Mar. 18, 2014
8652910 Method for fabricating semiconductor device and device using same Feb. 18, 2014
8614127 Method of making a FinFET device Dec. 24, 2013
8598627 P-type field-effect transistor and method of production Dec. 3, 2013
8598026 Semiconductor device and method of manufacturing the same Dec. 3, 2013
8541835 Schottky FET fabricated with gate last process Sep. 24, 2013
8476701 Semiconductor device with gate electrode including a concave portion Jul. 2, 2013
8455343 Semiconductor device with buried gate and method for fabricating the same Jun. 4, 2013
8455945 Semiconductor device having saddle fin transistor and method for fabricating the same Jun. 4, 2013
8357572 Method of manufacturing semiconductor device with recess and Fin structure Jan. 22, 2013
8357600 Method for fabricating buried gate using pre landing plugs Jan. 22, 2013
8247298 Method of manufacturing semiconductor device Aug. 21, 2012
8216893 Stress enhanced transistor devices and methods of making Jul. 10, 2012
8183113 Methods of forming recessed gate structures including blocking members, and methods of forming semiconductor devices having the recessed gate structures May. 22, 2012
8153492 Self-aligned V-channel MOSFET Apr. 10, 2012
8143127 Semiconductor device having asymmetric bulb-type recess gate and method for manufacturing the same Mar. 27, 2012
8115252 Elimination of gate oxide weak spot in deep trench Feb. 14, 2012
8097509 Method for manufacturing semiconductor device with a recessed channel Jan. 17, 2012
8076207 Gate structure and method of making the same Dec. 13, 2011
8076718 Insulated gate semiconductor device and method for producing the same Dec. 13, 2011
8058161 Recessed STI for wide transistors Nov. 15, 2011
8039347 Semiconductor device having vertically aligned pillar structures that have flat side surfaces and method for manufacturing the same Oct. 18, 2011
8012828 Recess gate transistor Sep. 6, 2011
7994570 Semiconductor device and method of manufacturing the same Aug. 9, 2011
7972914 Semiconductor device with FinFET and method of fabricating the same Jul. 5, 2011
7960761 Semiconductor device having a recess channel transistor Jun. 14, 2011
7955930 Semiconductor device and manufacturing method thereof Jun. 7, 2011
7955919 Spacer-less transistor integration scheme for high-K gate dielectrics and small gate-to-gate spaces applicable to Si, SiGe and strained silicon schemes Jun. 7, 2011
7951661 Semiconductor device and method of fabricating the same May. 31, 2011
7947556 Method of manufacturing semiconductor apparatus May. 24, 2011
7923334 Method for fabricating semiconductor device having vertical-type channel Apr. 12, 2011
7898025 Semiconductor device having recess gate Mar. 1, 2011
7883971 Gate structure in a trench region of a semiconductor device and method for manufacturing the same Feb. 8, 2011
7879666 Semiconductor resistor formed in metal gate stack Feb. 1, 2011
7871913 Method for manufacturing semiconductor device having vertical transistor Jan. 18, 2011
7871914 Methods of fabricating semiconductor devices with enlarged recessed gate electrodes Jan. 18, 2011
7855115 Method for forming laterally extending dielectric layer in a trench-gate FET Dec. 21, 2010
7851298 Method for fabricating transistor in a semiconductor device utilizing an etch stop layer pattern as a dummy pattern for the gate electrode formation Dec. 14, 2010
7842572 Methods of manufacturing semiconductor devices with local recess channel transistors Nov. 30, 2010
7838405 Method for manufacturing semiconductor device having bulb-type recessed channel Nov. 23, 2010
7833861 Semiconductor device having recess channel structure and method for manufacturing the same Nov. 16, 2010
7833863 Method of manufacturing a closed cell trench MOSFET Nov. 16, 2010
7825438 CMOS image sensor having drive transistor with increased gate surface area and method of manufacturing the same Nov. 2, 2010
7825463 Semiconductor device having asymmetric bulb-type recess gate and method for manufacturing the same Nov. 2, 2010
7816209 Method for fabricating semiconductor device Oct. 19, 2010
7803681 Semiconductor device with a bulb-type recess gate Sep. 28, 2010
7799641 Method for forming a semiconductor device having recess channel Sep. 21, 2010
7790551 Method for fabricating a transistor having a recess gate structure Sep. 7, 2010
7785964 Non-volatile semiconductor memory device and method of manufacturing the same Aug. 31, 2010
7785967 Method for manufacturing a semiconductor device Aug. 31, 2010

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