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Class Information
Number: 257/213
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Field effect device
Description: Subject matter comprising a field effect transistor, in which the density of electrical charge (electrons or holes) in a semiconductor region is controlled by a voltage applied to an adjacent region or electrode which in operation is prevented from conducting direct electrical current to or from the semiconductor region by an insulator or barrier region.










Sub-classes under this class:

Class Number Class Name Patents
257/214 Charge injection device 114
257/215 Charge transfer device 237
257/288 Having insulated electrode (e.g., mosfet, mos diode) 1,826
257/256 Junction field effect transistor (unipolar transistor) 228
257/252 Responsive to non-optical, non-electrical signal 186
257/255 With current flow along specified crystal axis (e.g., axis of maximum carrier mobility) 141


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12

Patent Number Title Of Patent Date Issued
8283702 Process for manufacturing a large-scale integration MOS device and corresponding MOS device Oct. 9, 2012
8278691 Low power memory device with JFET device structures Oct. 2, 2012
8273652 Semiconductor memory device and method of manufacturing the same Sep. 25, 2012
8269283 Methods and apparatus to reduce layout based strain variations in non-planar transistor structures Sep. 18, 2012
8264048 Multi-gate device having a T-shaped gate structure Sep. 11, 2012
8264012 Semiconductor device and manufacturing method thereof Sep. 11, 2012
8249838 Method and apparatus for modeling memristor devices Aug. 21, 2012
8242542 Semiconductor switching device employing a quantum dot structure Aug. 14, 2012
8242497 Metal transistor device Aug. 14, 2012
8237150 Nanowire devices for enhancing mobility through stress engineering Aug. 7, 2012
8222678 Semiconductor structure Jul. 17, 2012
8217386 Short channel vertical FETs Jul. 10, 2012
8193538 Electronic field effect devices Jun. 5, 2012
8188455 Information recording/reproducing device May. 29, 2012
8188518 Thin film transistor structure of pixel with drain extensions overlapping gate electrode and gate electrode extention May. 29, 2012
8184224 Display apparatus and method of laying out pixel circuits May. 22, 2012
8178899 Semiconductor device and fabrication method of the semiconductor device May. 15, 2012
8178910 Semiconductor device May. 15, 2012
8174055 Formation of FinFET gate spacer May. 8, 2012
8174054 Field effect transistor with interdigitated fingers and method of manufacturing thereof May. 8, 2012
8174053 Semiconductor device, production method thereof, and electronic device May. 8, 2012
8169039 Semiconductor device May. 1, 2012
8159021 Trench MOSFET with double epitaxial structure Apr. 17, 2012
8154049 ESD protection apparatus and electrical circuit including same Apr. 10, 2012
8138033 Semiconductor component and method of manufacture Mar. 20, 2012
8138526 Semiconductor structures including dual fins Mar. 20, 2012
8134206 Semiconductor device Mar. 13, 2012
8129758 Semiconductor element and manufacturing method therefor Mar. 6, 2012
8129791 Semiconductor device having a contact plug and manufacturing method thereof Mar. 6, 2012
8124977 Localized compressive strained semiconductor Feb. 28, 2012
8125005 Semiconductor element and method for manufacturing same Feb. 28, 2012
8120120 Embedded silicon germanium source drain structure with reduced silicide encroachment and contact resistance and enhanced channel mobility Feb. 21, 2012
8120112 Method and apparatus for improving triggering uniformity of snapback electrostatic discharge protection devices Feb. 21, 2012
8120050 Light-emitting element Feb. 21, 2012
8110487 Method of creating a strained channel region in a transistor by deep implantation of strain-inducing species below the channel region Feb. 7, 2012
8106465 Semiconductor device Jan. 31, 2012
8089139 Small outline package in which MOSFET and Schottky diode being co-packaged Jan. 3, 2012
8089128 Transistor gate forming methods and integrated circuits Jan. 3, 2012
8084823 Gate minimization threshold voltage of FET for synchronous rectification Dec. 27, 2011
8084788 Method of forming source and drain of a field-effect-transistor and structure thereof Dec. 27, 2011
8076679 Nitride-based semiconductor light-emitting diode and illuminating device Dec. 13, 2011
8076701 Large scale patterned growth of aligned one-dimensional nanostructures Dec. 13, 2011
8072014 Polarity dependent switch for resistive sense memory Dec. 6, 2011
8067292 Isolation structure, non-volatile memory having the same, and method of fabricating the same Nov. 29, 2011
8063450 Assembly of nanoscaled field effect transistors Nov. 22, 2011
8063418 Semiconductor device Nov. 22, 2011
8053317 Method and structure for improving uniformity of passive devices in metal gate technology Nov. 8, 2011
8034670 Reliable memory cell Oct. 11, 2011
8035136 Semiconductor device and method of manufacturing the same Oct. 11, 2011
8035141 Bi-layer nFET embedded stressor element and integration to enhance drive current Oct. 11, 2011

1 2 3 4 5 6 7 8 9 10 11 12










 
 
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