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Class Information
Number: 257/341
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Field effect device > Having insulated electrode (e.g., mosfet, mos diode) > Short channel insulated gate field effect transistor > Active channel region has a graded dopant concentration decreasing with distance from source region (e.g., double diffused device, dmos transistor) > Plural sections connected in parallel (e.g., power mosfet)
Description: Subject matter wherein the graded channel doping short channel IGFET has more than one section and a plurality of those sections are connected electrically in parallel (e.g., to form a power MOSFET).










Sub-classes under this class:

Class Number Class Name Patents
257/342 With means to reduce on resistance 555


Patents under this class:
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Patent Number Title Of Patent Date Issued
7683454 MOS power component with a reduced surface area Mar. 23, 2010
7679182 Power module and motor integrated control unit Mar. 16, 2010
7675113 Insulated gate transistor Mar. 9, 2010
7671409 Wide gap semiconductor power device with temperature independent resistivity due to channel region resistivity having negative temperature dependence Mar. 2, 2010
7671381 Semiconductor device and manufacturing the same Mar. 2, 2010
7670897 Semiconductor device and method for fabricating the same Mar. 2, 2010
7667269 Trench gate type semiconductor device Feb. 23, 2010
7663186 Semiconductor device Feb. 16, 2010
7659588 Termination for a superjunction device Feb. 9, 2010
7659574 Manufacturing method of semiconductor device Feb. 9, 2010
7655981 Superjunction semiconductor device Feb. 2, 2010
7651905 Apparatus and method for reducing gate leakage in deep sub-micron MOS transistors using semi-rectifying contacts Jan. 26, 2010
7649212 Active semiconductor component with a reduced surface area Jan. 19, 2010
7646071 Asymmetric channel doping for improved memory operation for floating body cell (FBC) memory Jan. 12, 2010
7646061 Power semiconductor component with charge compensation structure and method for producing the same Jan. 12, 2010
7646060 Method and device of field effect transistor including a base shorted to a source region Jan. 12, 2010
7642597 Power semiconductor device Jan. 5, 2010
7638841 Power semiconductor devices and methods of manufacture Dec. 29, 2009
7633123 Semiconductor device having super junction structure Dec. 15, 2009
7633120 Inverted-trench grounded-source field effect transistor (FET) structure using highly conductive substrates Dec. 15, 2009
7633102 Low voltage high density trench-gated power device with uniformly doped channel and its edge termination Dec. 15, 2009
7632760 Semiconductor device having field stabilization film and method Dec. 15, 2009
7629616 Silicon carbide self-aligned epitaxial MOSFET for high powered device applications Dec. 8, 2009
7626232 Voltage-controlled semiconductor device Dec. 1, 2009
7622796 Semiconductor package having a bridged plate interconnection Nov. 24, 2009
7622771 Semiconductor apparatus Nov. 24, 2009
7622758 CMOS image sensor with improved performance incorporating pixels with burst reset operation Nov. 24, 2009
7622351 Method of manufacturing semiconductor device and semiconductor device Nov. 24, 2009
7619287 Method of forming a low capacitance semiconductor device and structure therefor Nov. 17, 2009
7616859 Semiconductor device Nov. 10, 2009
7613442 Switch circuit and method of switching radio frequency signals Nov. 3, 2009
7612439 Semiconductor package having improved thermal performance Nov. 3, 2009
7605446 Bipolar high voltage/power semiconductor device having first and second insulated gated and method of operation Oct. 20, 2009
7605435 Bi-directional MOSFET power switch with single metal layer Oct. 20, 2009
7605423 Semiconductor device Oct. 20, 2009
7602014 Superjunction power MOSFET Oct. 13, 2009
7598143 Method for producing an integrated circuit with a trench transistor structure Oct. 6, 2009
7595257 Process of forming an electronic device including a barrier layer Sep. 29, 2009
7592668 Charge balance techniques for power devices Sep. 22, 2009
7586180 Semiconductor packaging device comprising a semiconductor chip including a MOSFET Sep. 8, 2009
7586151 Insulated gate semiconductor device Sep. 8, 2009
7586132 Power FET with low on-resistance using merged metal layers Sep. 8, 2009
7579652 Semiconductor device having a high withstand voltage Aug. 25, 2009
7579649 Trench field effect transistor and method of making it Aug. 25, 2009
7576393 Semiconductor device and method of manufacturing the same Aug. 18, 2009
7576392 Semiconductor device including gate wiring, main electrodes and connecting plate connected onto said main electrodes Aug. 18, 2009
7573095 Memory cells with improved program/erase windows Aug. 11, 2009
7571415 Layout of power device Aug. 4, 2009
7569883 Switching-controlled power MOS electronic device Aug. 4, 2009
7569875 Semiconductor device and a method for producing the same Aug. 4, 2009

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