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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
8710596 Semiconductor device Apr. 29, 2014
8710538 Light-emitting device with a spacer at bottom surface Apr. 29, 2014
8703569 MOS transistor, manufacturing method thereof, and semiconductor device Apr. 22, 2014
8673757 Structure and method for using high-k material as an etch stop layer in dual stress layer process Mar. 18, 2014
8674461 Hybrid plasma-semiconductor electronic and optical devices Mar. 18, 2014
8669145 Method and structure for strained FinFET devices Mar. 11, 2014
8669662 Fastening device Mar. 11, 2014
8664053 Semiconductor device with isolation structures and gate insulating film that contain an element for threshold reduction and method of manufacturing the same Mar. 4, 2014
8664699 Methods and devices for fabricating and assembling printable semiconductor elements Mar. 4, 2014
8658485 Semiconductor device and method of fabricating the same Feb. 25, 2014
8643111 Electrostatic discharge (ESD) protection device Feb. 4, 2014
8643123 Method of making a semiconductor structure useful in making a split gate non-volatile memory cell Feb. 4, 2014
8637941 Self-aligned contact employing a dielectric metal oxide spacer Jan. 28, 2014
8629480 Hetero-junction tunneling transistor Jan. 14, 2014
8614466 Semiconductor for measuring biological interactions Dec. 24, 2013
8603872 Field effect device provided with a localized dopant diffusion barrier area and fabrication method Dec. 10, 2013
8604512 Bidirectional switch Dec. 10, 2013
8604550 Semiconductor devices including gate structure and method of fabricating the same Dec. 10, 2013
8598668 Semiconductor device Dec. 3, 2013
8592799 Graphene electronic device and method of fabricating the same Nov. 26, 2013
8586427 Thin film transistors and methods of manufacturing thin film transistors Nov. 19, 2013
8587039 Method of forming a semiconductor device featuring a gate stressor and semiconductor device Nov. 19, 2013
8575656 Semiconductor device having nitride layers Nov. 5, 2013
8575672 Nonvolatile semiconductor memory devices Nov. 5, 2013
8569124 Method of manufacturing compound semiconductor device with gate electrode forming before source electrode and drain electrode Oct. 29, 2013
8569741 Electronic arrangements for passivated silicon nanowires Oct. 29, 2013
8564102 Semiconductor device having through silicon via (TSV) Oct. 22, 2013
8557675 Methods of patterning features in a structure using multiple sidewall image transfer technique Oct. 15, 2013
8558225 Oxide thin film transistor having source and drain electrodes being formed between a primary and a secondary active layers Oct. 15, 2013
8541848 High-voltage MOSFETs having current diversion region in substrate near fieldplate Sep. 24, 2013
8536043 Reduced S/D contact resistance of III-V MOSFET using low temperature metal-induced crystallization of n+ Ge Sep. 17, 2013
8536629 Semiconductor device and method for manufacturing the same Sep. 17, 2013
8536630 Transistor devices and methods of making Sep. 17, 2013
8536632 FinFET with reduced gate to fin overlay sensitivity Sep. 17, 2013
8536648 Drain extended field effect transistors and methods of formation thereof Sep. 17, 2013
8530884 Strain inducing semiconductor regions Sep. 10, 2013
8525276 Hybrid plasma-semiconductor electronic and optical devices Sep. 3, 2013
8525268 Vertical discrete device with drain and gate electrodes on the same surface and method for making the same Sep. 3, 2013
8525243 Single gate semiconductor device Sep. 3, 2013
8525237 Electrically conductive polymer nanowires with incorporated viruses Sep. 3, 2013
8525228 Semiconductor on insulator (XOI) for high performance field effect transistors Sep. 3, 2013
8519447 Ion sensitive sensor with multilayer construction in the sensor region Aug. 27, 2013
8513714 Electric contacting of semiconductor components having low contact resistance Aug. 20, 2013
8507989 Extremely thin semiconductor-on-insulator (ETSOI) FET with a back gate and reduced parasitic capacitance Aug. 13, 2013
8507948 Junctionless accumulation-mode devices on prominent architectures, and methods of making same Aug. 13, 2013
8507919 Field-effect transistor Aug. 13, 2013
8502272 Metal-oxide-semiconductor high electron mobility transistors and methods of fabrication Aug. 6, 2013
8502288 Semiconductor structure and method for slimming spacer Aug. 6, 2013
8487378 Non-uniform channel junction-less transistor Jul. 16, 2013
8487296 Graphene deposition and graphenated substrates Jul. 16, 2013

1 2 3 4 5










 
 
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