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Class Information
Number: 257/E29.091
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) > Electrical characteristics due to properties of entire semiconductor body rather than just surface region (epo) > Characterized by materials of semiconductor body (epo) > Only group iii-v compounds (epo) > Including two or more compounds (e.g., alloys) (epo) > In different semiconductor regions (e.g., heterojunctions) (epo)
Description: This subclass is indented under subclass E29.09. This subclass is substantially the same in scope as ECLA classification H01L29/205.


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
7352015 Gallium nitride materials and methods associated with the same Apr. 1, 2008
7256432 Field-effect transistor Aug. 14, 2007
7049678 Diverse band gap energy level semiconductor device May. 23, 2006
7038248 Diverse band gap energy level semiconductor device May. 2, 2006
6982439 Tunnel junctions for long-wavelength VCSELs Jan. 3, 2006
6952019 Electron device which controls quantum chaos and quantum chaos controlling method Oct. 4, 2005
6933539 Tunnel junctions for long-wavelength VCSELs Aug. 23, 2005
6878959 Group III-V semiconductor devices including semiconductor materials made by spatially-selective intermixing of atoms on the group V sublattice Apr. 12, 2005
6875995 Heterogeneous bandgap structures for semiconductor devices and manufacturing methods therefor Apr. 5, 2005
6856005 Semiconductor device having a nitride-based hetero-structure and method of manufacturing the same Feb. 15, 2005
6853008 Semiconductor device and manufacturing method thereof Feb. 8, 2005
6841409 Group III-V compound semiconductor and group III-V compound semiconductor device using the same Jan. 11, 2005
6822274 Heterojunction semiconductor device having an intermediate layer for providing an improved junction Nov. 23, 2004
6806512 InPSb/InAs BJT device and method of making Oct. 19, 2004
6787822 Heterojunction III-V transistor, in particular HEMT field effect transistor or heterojunction bipolar transistor Sep. 7, 2004
6750481 Semiconductor laminated substrate, semiconductor crystal substrate and semiconductor device and method of manufacturing the same Jun. 15, 2004
6744078 Heterojunction structure with a charge compensation layer formed between two group III-V semiconductor layers Jun. 1, 2004
6734530 GaN-based compound semiconductor EPI-wafer and semiconductor element using the same May. 11, 2004
6703639 Nanofabrication for InAs/AlSb heterostructures Mar. 9, 2004
6686646 Diverse band gap energy level semiconductor device Feb. 3, 2004
6657278 Diverse band gap energy level semiconductor device Dec. 2, 2003
6624451 High frequency field effect transistor with carrier extraction to reduce intrinsic conduction Sep. 23, 2003
6537513 Semiconductor substrate and method for making the same Mar. 25, 2003
6531718 Semiconductor device Mar. 11, 2003
6531748 Semiconductor power component with a reduced parasitic bipolar transistor Mar. 11, 2003
6489639 High electron mobility transistor Dec. 3, 2002
6482711 InPSb/InAs BJT device and method of making Nov. 19, 2002
6472298 Layered group III-V compound semiconductor, method of manufacturing the same and light emitting element Oct. 29, 2002
6455879 Low resistance contact semiconductor diode Sep. 24, 2002
6437374 Semiconductor device and method of forming a semiconductor device Aug. 20, 2002
6406795 Compliant universal substrates for optoelectronic and electronic devices Jun. 18, 2002
6403874 High-efficiency heterostructure thermionic coolers Jun. 11, 2002
6348698 Layered semiconductor structures and light emitting devices including the structure Feb. 19, 2002
6346720 Layered group III-V compound semiconductor, method of manufacturing the same, and light emitting element Feb. 12, 2002
6323414 Heterostructure thermionic coolers Nov. 27, 2001
6294414 Method of fabricating heterointerface devices having diffused junctions Sep. 25, 2001
6177685 Nitride-type III-V HEMT having an InN 2DEG channel layer Jan. 23, 2001
6172420 Silicon delta-doped gallium arsenide/indium arsenide heterojunction OHMIC contact Jan. 9, 2001
6144045 High power devices based on gallium nitride and aluminum gallium nitride semiconductor heterostructures Nov. 7, 2000
6133590 Low resistance contact semiconductor diode Oct. 17, 2000
6104039 P-type nitrogen compound semiconductor and method of manufacturing same Aug. 15, 2000
6075254 Polarization insensitive/independent semiconductor waveguide modulator using tensile stressors Jun. 13, 2000
6060331 Method for making heterostructure thermionic coolers May. 9, 2000
6043143 Ohmic contact and method of manufacture Mar. 28, 2000
5982024 High concentration doped semiconductor Nov. 9, 1999
5962877 Inverter apparatus having improved switching element Oct. 5, 1999
5955772 Heterostructure thermionic coolers Sep. 21, 1999
5952672 Semiconductor device and method for fabricating the same Sep. 14, 1999
5929466 Semiconductor device and method of fabricating the same Jul. 27, 1999
5912480 Heterojunction semiconductor device Jun. 15, 1999

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