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Class Information
Number: 257/E29.242
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Semiconductors devices adapted for rectifying, amplifying, oscillating, or switching, capacitors, or resistors with at least one potential-jump barrier or surface barrier (epo) > Types of semiconductor device (epo) > Controllable by only signal applied to control electrode (e.g., base of bipolar transistor, gate of field-effect transistor) (epo) > Unipolar device (epo) > Field-effect transistor (epo)
Description: This subclass is indented under subclass E29.226. This subclass is substantially the same in scope as ECLA classification H01L29/772.

Sub-classes under this class:

Class Number Class Name Patents
257/E29.243 Using static field induced region (e.g., sit, pbt) (epo) 201
257/E29.244 Velocity modulations transistor (i.e., vmt) (epo) 11
257/E29.254 With delta-doped channel (epo) 38
257/E29.255 With field effect produced by insulated gate (epo) 1,096
257/E29.31 With field effect produced by pn or other rectifying junction gate (i.e., potential barrier) (epo) 48
257/E29.245 With one-dimensional charge carrier gas channel (e.g., quantum wire fet) (epo) 116
257/E29.246 With two-dimensional charge carrier gas channel (e.g., hemt; with two-dimensional charge-carrier layer formed at heterojunction interface) (epo) 334

Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8482085 Power MOS electronic device and corresponding realizing method Jul. 9, 2013
8481391 Process for manufacturing stress-providing structure and semiconductor device with such stress-providing structure Jul. 9, 2013
8476689 Super CMOS devices on a microelectronics system Jul. 2, 2013
8466516 Semiconductor device Jun. 18, 2013
8461634 Divot engineering for enhanced device performance Jun. 11, 2013
8440558 Semiconductor device and method of fabricating the same May. 14, 2013
8436425 SOI semiconductor device comprising substrate diodes having a topography tolerant contact structure May. 7, 2013
8436430 Diodes with embedded dummy gate electrodes May. 7, 2013
8431918 Electronic device for a reconfigurable logic circuit Apr. 30, 2013
8421162 Advanced transistors with punch through suppression Apr. 16, 2013
8421059 Strain-inducing semiconductor regions Apr. 16, 2013
8420490 High-performance semiconductor device and method of manufacturing the same Apr. 16, 2013
8420487 Power MOS electronic device and corresponding realizing method Apr. 16, 2013
8405168 Nanowire fabrication method and semiconductor element using nanowire fabricated thereby Mar. 26, 2013
8399928 Semiconductor device Mar. 19, 2013
8395196 Hydrogen barrier liner for ferro-electric random access memory (FRAM) chip Mar. 12, 2013
8395222 MOS transistor, manufacturing method thereof, and semiconductor device Mar. 12, 2013
8390046 Semiconductor device Mar. 5, 2013
8390037 Gas sensor Mar. 5, 2013
8390001 Electronic circuit device Mar. 5, 2013
8377759 Controlled fin-merging for fin type FET devices Feb. 19, 2013
8378421 Method of manufacturing thin film transistor and thin film transistor substrate Feb. 19, 2013
8367499 Method for manufacturing semiconductor device with first and second gates over buried bit line Feb. 5, 2013
8357957 FET-based sensor for detecting ionic material, ionic material detecting device using the FET-based sensor, and method of detecting ionic material using the FET-based sensor Jan. 22, 2013
8350294 Compensated gate MISFET and method for fabricating the same Jan. 8, 2013
8350272 Semiconductor device Jan. 8, 2013
8349697 Field effect transistor with air gap dielectric Jan. 8, 2013
8330196 Semiconductor device and method of manufacturing the same Dec. 11, 2012
8309988 Field effect transistor Nov. 13, 2012
8304833 Memory cell with a channel buried beneath a dielectric layer Nov. 6, 2012
8304843 Tunnel field effect transistor with improved subthreshold swing Nov. 6, 2012
8294180 CMOS devices with a single work function gate electrode and method of fabrication Oct. 23, 2012
8283709 Semiconductor structure Oct. 9, 2012
8278647 Quantum dot transistor Oct. 2, 2012
8274086 Wide band gap semiconductor device including junction field effect transistor Sep. 25, 2012
8258498 Quantum well MOSFET channels having uni-axial strain caused by metal source/drains, and conformal regrowth source/drains Sep. 4, 2012
8252638 Method for forming under a thin layer of a first material portions of another material and/or empty areas Aug. 28, 2012
8216909 Field effect transistor with air gap dielectric Jul. 10, 2012
8217433 One-transistor pixel array Jul. 10, 2012
8217472 Semiconductor device with isolation trench liner Jul. 10, 2012
8188518 Thin film transistor structure of pixel with drain extensions overlapping gate electrode and gate electrode extention May. 29, 2012
8169038 Semiconductor device and method of manufacturing the same May. 1, 2012
8164140 Method for fabricating semiconductor memory device Apr. 24, 2012
8124977 Localized compressive strained semiconductor Feb. 28, 2012
8120120 Embedded silicon germanium source drain structure with reduced silicide encroachment and contact resistance and enhanced channel mobility Feb. 21, 2012
8115257 Semiconductor apparatus Feb. 14, 2012
8097905 Cascoded high voltage junction field effect transistor Jan. 17, 2012
8039954 Bidirectional switch module Oct. 18, 2011
8026551 Source follower circuit or bootstrap circuit, driver circuit comprising such circuit, and display device comprising such driver circuit Sep. 27, 2011
8022410 Thin film transistors Sep. 20, 2011

1 2 3 4 5

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