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Class Information
Number: 257/E29.241
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) > Hot electron transistor (het) or metal base transistor (mbt) (epo)
Description: This subclass is indented under subclass E29.226. This subclass is substantially the same in scope as ECLA classification H01L29/76C.

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8659952 Method of operating non-volatile memory Feb. 25, 2014
8519474 Electronic device including an insulating layer having different thicknesses and a conductive electrode and a process of forming the same Aug. 27, 2013
8309988 Field effect transistor Nov. 13, 2012
8273525 Systems and methods for forming defects on graphitic materials and curing radiation-damaged graphitic materials Sep. 25, 2012
7972910 Manufacturing method of integrated circuit device including thin film transistor Jul. 5, 2011
7834405 Semiconductor device including I/O oxide and nitrided core oxide on substrate Nov. 16, 2010
7829411 Method and device to form high quality oxide layers of different thickness in one processing step Nov. 9, 2010
7713850 Method for forming a structure provided with at least one zone of one or several semiconductor nanocrystals localised with precision May. 11, 2010
7687828 Field-effect transistor Mar. 30, 2010
7560322 Method of making a semiconductor structure for high power semiconductor devices Jul. 14, 2009
7485555 Methods for forming a P-type polysilicon layer in a semiconductor device Feb. 3, 2009
7015336 Sub-nanoscale electronic devices and processes Mar. 21, 2006
6987292 Schottky junction transistors and complementary circuits including the same Jan. 17, 2006
6864131 Complementary Schottky junction transistors and methods of forming the same Mar. 8, 2005
6756649 High speed electron tunneling device and applications Jun. 29, 2004
6630382 Current controlled field effect transistor Oct. 7, 2003
6608386 Sub-nanoscale electronic devices and processes Aug. 19, 2003
6563185 High speed electron tunneling device and applications May. 13, 2003
6320200 Sub-nanoscale electronic devices and processes Nov. 20, 2001
6320220 Quantum tunneling effect device and semiconductor composite substrate Nov. 20, 2001
6303940 Charge injection transistor using high-k dielectric barrier layer Oct. 16, 2001
6201258 Hot carrier transistors utilizing quantum well injector for high current gain Mar. 13, 2001
6111288 Quantum tunneling effect device and semiconductor composite substrate Aug. 29, 2000
6097036 Semiconductor logic element and apparatus using thereof Aug. 1, 2000
6091077 MIS SOI semiconductor device with RTD and/or HET Jul. 18, 2000
6080996 Unipolar three-terminal resonant-tunneling transistor Jun. 27, 2000
6043518 Multiple-function GaAs transistors with very strong negative differential resistance phenomena Mar. 28, 2000
5981986 Semiconductor device having a heterojunction Nov. 9, 1999
5942790 Charge effect transistor and a method for manufacturing the same Aug. 24, 1999
5932894 SiC semiconductor device comprising a pn junction Aug. 3, 1999
5907159 Hot electron device and a resonant tunneling hot electron device May. 25, 1999
5892247 Semiconductor device and a manufacturing method thereof Apr. 6, 1999
5856681 Semiconductor device Jan. 5, 1999
5777353 Multiple-function gaas transistors with very strong negative differential resistance phenomena Jul. 7, 1998
5744817 Hot carrier transistors and their manufacture Apr. 28, 1998
5739544 Quantization functional device utilizing a resonance tunneling effect and method for producing the same Apr. 14, 1998
5712491 Lateral theta device Jan. 27, 1998
5625208 Method for using a charge injection transistor Apr. 29, 1997
5589692 Sub-nanoscale electronic systems and devices Dec. 31, 1996
5569943 Field effect real space transistor Oct. 29, 1996
5552330 Resonant tunneling fet and methods of fabrication Sep. 3, 1996
5543749 Resonant tunneling transistor Aug. 6, 1996
5514614 Method for producing quantization functional device utilizing a resonance tunneling effect May. 7, 1996
5512764 Coupled-quantum-well field-effect resonant tunneling transistor for multi-valued logic/memory applications Apr. 30, 1996
5486706 Quantization functional device utilizing a resonance tunneling effect and method for producing the same Jan. 23, 1996
5475341 Sub-nanoscale electronic systems and devices Dec. 12, 1995
5455441 Semiconductor device having a structure for accelerating carriers Oct. 3, 1995
5442194 Room-temperature tunneling hot-electron transistor Aug. 15, 1995
5436469 Band minima transistor Jul. 25, 1995
5432362 Resonant tunnel effect quantum well transistor Jul. 11, 1995

1 2 3

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