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Class Information
Number: 257/402
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Field effect device > Having insulated electrode (e.g., mosfet, mos diode) > With permanent threshold adjustment (e.g., depletion mode)
Description: Subject matter wherein the device includes means for permanently adjusting the threshold voltage at which the device conducts (e.g., depletion mode IGFETs).










Sub-classes under this class:

Class Number Class Name Patents
257/403 With channel conductivity dopant same type as that of source and drain 170
257/407 With gate electrode of controlled workfunction material (e.g., low workfunction gate material) 356
257/405 With gate insulator containing specified permanent charge 96


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

Patent Number Title Of Patent Date Issued
8012836 Semiconductor devices and methods for fabricating the same Sep. 6, 2011
7989899 Transistor, inverter including the same and methods of manufacturing transistor and inverter Aug. 2, 2011
7964921 MOSFET and production method of semiconductor device Jun. 21, 2011
7960792 Non-volatile memory with a stable threshold voltage on SOI substrate Jun. 14, 2011
7960801 Gate electrode stress control for finFET performance enhancement description Jun. 14, 2011
7928509 Integrated JFET and schottky diode Apr. 19, 2011
7910391 Getter formed by laser-treatment and methods of making same Mar. 22, 2011
7906990 Semiconductor integrated circuit device Mar. 15, 2011
7893507 Metal oxide semiconductor (MOS) transistors with increased break down voltages and methods of making the same Feb. 22, 2011
7888747 Semiconductor device and method of fabricating the same Feb. 15, 2011
7880238 2-T SRAM cell structure and method Feb. 1, 2011
7855417 Non-volatile memory with a stable threshold voltage on SOI substrate Dec. 21, 2010
7851867 Integrated circuit and method of manufacturing the same Dec. 14, 2010
7843018 Transistor providing different threshold voltages and method of fabrication thereof Nov. 30, 2010
7829898 Power semiconductor device having raised channel and manufacturing method thereof Nov. 9, 2010
7795691 Semiconductor transistor with P type re-grown channel layer Sep. 14, 2010
7785971 Fabrication of complementary field-effect transistors with vertical body-material dopant profiles tailored to alleviate punchthrough and reduce current leakage Aug. 31, 2010
7781814 Method of forming a CMOS structure having gate insulation films of different thicknesses Aug. 24, 2010
7772646 Method of manufacturing a semiconductor device and such a semiconductor device Aug. 10, 2010
7768077 Semiconductor device and method for manufacturing the same Aug. 3, 2010
7768041 Multiple conduction state devices having differently stressed liners Aug. 3, 2010
7749880 Method of manufacturing semiconductor integrated circuit device Jul. 6, 2010
7750405 Low-cost high-performance planar back-gate CMOS Jul. 6, 2010
7732874 FinFET structure using differing gate dielectric materials and gate electrode materials Jun. 8, 2010
7727831 Semiconductor device Jun. 1, 2010
7714352 Hetero junction semiconductor device May. 11, 2010
7705409 High voltage transistors Apr. 27, 2010
7701009 Source follower circuit or bootstrap circuit, driver circuit comprising such circuit, and display device comprising such driver circuit Apr. 20, 2010
7683439 Semiconductor device having a metal carbide gate with an electropositive element and a method of making the same Mar. 23, 2010
7655990 Voltage-clipping device with high breakdown voltage Feb. 2, 2010
7645662 Transistor providing different threshold voltages and method of fabrication thereof Jan. 12, 2010
7619288 Thin film transistor substrate, liquid crystal display device provided with such thin film transistor substrate and method for manufacturing thin film transistor substrate Nov. 17, 2009
7615827 Dual gate dielectric thickness devices and circuits using dual gate dielectric thickness devices Nov. 10, 2009
7602029 Configuration and method of manufacturing the one-time programmable (OTP) memory cells Oct. 13, 2009
7595532 Semiconductor memory devices and methods of forming the same Sep. 29, 2009
7592241 Semiconductor device having well with peak impurity concentrations and method for fabricating the same Sep. 22, 2009
7569898 Semiconductor device and method of manufacturing the same Aug. 4, 2009
7569901 P channel radhard device with boron diffused P-type polysilicon gate Aug. 4, 2009
7564106 Semiconductor device comprising gate electrode Jul. 21, 2009
7491988 Transistors with increased mobility in the channel zone and method of fabrication Feb. 17, 2009
7442971 Self-biasing transistor structure and an SRAM cell having less than six transistors Oct. 28, 2008
7432542 Semiconductor device with electrostrictive layer in semiconductor layer and method of manufacturing the same Oct. 7, 2008
7427791 Method of forming a CMOS structure having gate insulation films of different thicknesses Sep. 23, 2008
7355249 Silicon-on-insulator based radiation detection device and method Apr. 8, 2008
7332770 Semiconductor device Feb. 19, 2008
7315060 Semiconductor storage device, manufacturing method therefor and portable electronic equipment Jan. 1, 2008
7297996 Semiconductor memory device for storing data in memory cells as complementary information Nov. 20, 2007
7282768 MOS field-effect transistor Oct. 16, 2007
7274076 Threshold voltage adjustment for long channel transistors Sep. 25, 2007
7265421 Insulated-gate field-effect thin film transistors Sep. 4, 2007

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