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Class Information
Number: 257/496
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > With means to increase breakdown voltage threshold > With physical configuration of semiconductor surface to reduce electric field (e.g., reverse bevels, double bevels, stepped mesas, etc.)
Description: Subject matter wherein the means to increase breakdown voltage includes a semiconductor surface portion having a physical configuration, such as a bevel or mesa, to reduce electric field strength at a given applied voltage. Typically, the physical configuration will be such that the depletion region from a reverse biased junction in the active device reaches the physically configured surface and is forced by the shape of the surface to spread wider at a given applied reverse voltage than it would otherwise, thus reducing the electric field strength in the depletion layer.


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7439595 Field effect transistor having vertical channel structure Oct. 21, 2008
7391094 Semiconductor structure and method of making same Jun. 24, 2008
7361945 Semiconductor device Apr. 22, 2008
7348256 Methods of forming reduced electric field DMOS using self-aligned trench isolation Mar. 25, 2008
7335944 High-voltage vertical transistor with a multi-gradient drain doping profile Feb. 26, 2008
7304363 Interacting current spreader and junction extender to increase the voltage blocked in the off state of a high power semiconductor device Dec. 4, 2007
7279757 Double-sided extended drain field effect transistor Oct. 9, 2007
7268339 Large area semiconductor detector with internal gain Sep. 11, 2007
7211861 Insulated gate semiconductor device May. 1, 2007
7180152 Process for resurf diffusion for high voltage MOSFET Feb. 20, 2007
7170133 Transistor and method of fabricating the same Jan. 30, 2007
7145214 Substrate for stressed systems and method of making same Dec. 5, 2006
7141856 Multi-structured Si-fin Nov. 28, 2006
7118942 Method of making atomic integrated circuit device Oct. 10, 2006
7105927 Structure of dummy pattern in semiconductor device Sep. 12, 2006
7102201 Strained semiconductor device structures Sep. 5, 2006
7084044 Optoelectronic device and method of manufacture thereof Aug. 1, 2006
7009270 Substrate for stressed systems and method of making same Mar. 7, 2006
6972477 Circuit device with conductive patterns separated by insulating resin-filled grooves Dec. 6, 2005
6919598 LDMOS transistor with enhanced termination region for high breakdown voltage with low on-resistance Jul. 19, 2005
6900523 Termination structure for MOSgated power devices May. 31, 2005
6885084 Semiconductor transistor having a stressed channel Apr. 26, 2005
6855986 Termination structure for trench DMOS device and method of making the same Feb. 15, 2005
6818945 Semiconductor device Nov. 16, 2004
6744112 Multiple chip guard rings for integrated circuit and chip guard ring interconnect Jun. 1, 2004
6740952 High withstand voltage semiconductor device May. 25, 2004
6696705 Power semiconductor component having a mesa edge termination Feb. 24, 2004
6693340 Lateral semiconductor device Feb. 17, 2004
6683363 Trench structure for semiconductor devices Jan. 27, 2004
6670694 Semiconductor device Dec. 30, 2003
6646304 Universal semiconductor wafer for high-voltage semiconductor components Nov. 11, 2003
6617652 High breakdown voltage semiconductor device Sep. 9, 2003
6600213 Semiconductor structure and package including a chip having chamfered edges Jul. 29, 2003
6583487 Power component bearing interconnections Jun. 24, 2003
6525389 High voltage termination with amorphous silicon layer below the field plate Feb. 25, 2003
6492691 High integration density MOS technology power device structure Dec. 10, 2002
6489666 Semiconductor device with improved heat suppression in peripheral regions Dec. 3, 2002
6486524 Ultra low Irr fast recovery diode Nov. 26, 2002
6483135 Field effect transistor Nov. 19, 2002
6476458 Semiconductor device capable of enhancing a withstand voltage at a peripheral region around an element in comparison with a withstand voltage at the element Nov. 5, 2002
6424010 Method of manufacturing a semiconductor device having reduced power consumption without a reduction in the source/drain breakdown voltage Jul. 23, 2002
6373110 Semiconductor device having high breakdown voltage Apr. 16, 2002
6362064 Elimination of walkout in high voltage trench isolated devices Mar. 26, 2002
6359308 Cellular trench-gate field-effect transistors Mar. 19, 2002
6355960 ESD protection for open drain I/O pad in integrated circuit with parasitic field FET devices Mar. 12, 2002
6323530 Optical semiconductor device Nov. 27, 2001
6309929 Method of forming trench MOS device and termination structure Oct. 30, 2001
6140681 Electrostatic discharge protection circuit Oct. 31, 2000
6100549 High breakdown voltage resurf HFET Aug. 8, 2000
6091108 Semiconductor device of SiC having an insulated gate and buried grid region for high breakdown voltage Jul. 18, 2000

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