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Class Information
Number: 257/E21.417
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) > With channel containing layer, e.g., p-base, fo rmed in or on drain region, e.g., dmos transistor (epo)
Description: This subclass is indented under subclass E21.409. This subclass is substantially the same in scope as ECLA classification H01L21/336B.










Sub-classes under this class:

Class Number Class Name Patents
257/E21.418 Vertical power dmos transistor (epo) 409


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8709900 Double diffused metal oxide semiconductor device and manufacturing method thereof Apr. 29, 2014
8686501 Semiconductor device with high voltage transistor Apr. 1, 2014
8686503 Lateral high-voltage transistor and associated method for manufacturing Apr. 1, 2014
8679930 Semiconductor structure and manufacturing method for the same Mar. 25, 2014
8673712 Power transistor with high voltage counter implant Mar. 18, 2014
8659081 Transistor with reduced channel length variation Feb. 25, 2014
8653594 Double diffused metal oxide semiconductor device and manufacturing method thereof Feb. 18, 2014
8643137 Short channel lateral MOSFET Feb. 4, 2014
8637370 Integration of trench MOS with low voltage integrated circuits Jan. 28, 2014
8633075 Semiconductor device with high voltage transistor Jan. 21, 2014
8629498 Power semiconductor device and method for manufacturing the power semiconductor device Jan. 14, 2014
8614484 High voltage device with partial silicon germanium epi source/drain Dec. 24, 2013
8581338 Lateral-diffused metal oxide semiconductor device (LDMOS) and fabrication method thereof Nov. 12, 2013
8581340 Semiconductor device of which breakdown voltage is improved Nov. 12, 2013
8558276 Bottom source NMOS triggered zener clamp for configuring an ultra-low voltage transient voltage suppressor (TVS) Oct. 15, 2013
8530965 Semiconductor device Sep. 10, 2013
8530967 Lateral insulated-gate bipolar transistor and manufacturing method thereof Sep. 10, 2013
8524548 DMOS Transistor with a cavity that lies below the drift region Sep. 3, 2013
8507988 High voltage devices, systems, and methods for forming the high voltage devices Aug. 13, 2013
8492233 Configurable NP channel lateral drain extended MOS-based transistor Jul. 23, 2013
8476127 Integrated lateral high voltage MOSFET Jul. 2, 2013
8470675 Thick gate oxide for LDMOS and DEMOS Jun. 25, 2013
8461647 Semiconductor device having multi-thickness gate dielectric Jun. 11, 2013
8450814 Extended drain lateral DMOS transistor with reduced gate charge and self-aligned extended drain May. 28, 2013
8441070 Semiconductor device and method of manufacturing semiconductor device May. 14, 2013
8395210 DMOS transistor and method of manufacturing the same Mar. 12, 2013
8349717 High voltage LDMOS Jan. 8, 2013
8338281 Method for fabricating semiconductor device Dec. 25, 2012
8334568 Semiconductor device and method for producing the same Dec. 18, 2012
8324042 Integrated complementary low voltage RF-LDMOS Dec. 4, 2012
8309410 Power MOSFET with a gate structure of different material Nov. 13, 2012
8304830 LDPMOS structure for enhancing breakdown voltage and specific on resistance in biCMOS-DMOS process Nov. 6, 2012
8304831 Method and apparatus of forming a gate Nov. 6, 2012
8298889 Process of forming an electronic device including a trench and a conductive structure therein Oct. 30, 2012
8288220 Methods of forming semiconductor devices including epitaxial layers and related structures Oct. 16, 2012
8278710 Guard ring integrated LDMOS Oct. 2, 2012
8264037 Semiconductor device and method of manufacturing semiconductor device Sep. 11, 2012
8247870 Power MOSFET integration Aug. 21, 2012
8236640 Method of fabricating a semiconductor device having gate finger elements extended over a plurality of isolation regions formed in the source and drain regions Aug. 7, 2012
8232613 Germanium silicide layer including vanadium, platinum, and nickel Jul. 31, 2012
8232594 Semiconductor device and method of manufacturing the same Jul. 31, 2012
8227871 Semiconductor device and method for manufacturing the same Jul. 24, 2012
8212310 Semiconductor device Jul. 3, 2012
8212329 Short channel lateral MOSFET and method Jul. 3, 2012
8187937 Semiconductor component and method for producing the same May. 29, 2012
8159026 Lateral high-voltage semiconductor devices with majorities of both types for conduction Apr. 17, 2012
8154078 Semiconductor structure and fabrication method thereof Apr. 10, 2012
8143126 Method for forming a vertical MOS transistor Mar. 27, 2012
8138047 Super junction semiconductor device Mar. 20, 2012
8120104 Semiconductor device and method of manufacturing semiconductor device Feb. 21, 2012

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