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Class Information
Number: 257/76
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Specified wide band gap (1.5ev) semiconductor material other than gaasp or gaalas
Description: Subject matter including a semiconductor material with a band gap (between its valance and conduction bands) greater that 1.5 electron volts which is not gallium arsenide phosphide or gallium aluminum arsenide.


Sub-classes under this class:

Class Number Class Name Patents
257/77 Diamond or silicon carbide 763
257/78 Ii-vi compound 158


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
6265289 Methods of fabricating gallium nitride semiconductor layers by lateral growth from sidewalls into trenches, and gallium nitride semiconductor structures fabricated thereby Jul. 24, 2001
6255198 Methods of fabricating gallium nitride microelectronic layers on silicon layers and gallium nitride microelectronic structures formed thereby Jul. 3, 2001
6252261 GaN crystal film, a group III element nitride semiconductor wafer and a manufacturing process therefor Jun. 26, 2001
6246077 Semiconductor device Jun. 12, 2001
6225672 High-gain and high-temperature applicable phototransistor with multiple mono-crystalline silicon-carbide layers on a silicon substrate May. 1, 2001
6221788 Semiconductor and a method for manufacturing an oxide film on the surface of a semiconductor substrate Apr. 24, 2001
6218771 Group III nitride field emitters Apr. 17, 2001
6188137 Ohmic electrode structure, semiconductor device including such ohmic electrode structure, and method for producing such semiconductor device Feb. 13, 2001
6180956 Thin film transistors with organic-inorganic hybrid materials as semiconducting channels Jan. 30, 2001
6177292 Method for forming GaN semiconductor single crystal substrate and GaN diode with the substrate Jan. 23, 2001
6177688 Pendeoepitaxial gallium nitride semiconductor layers on silcon carbide substrates Jan. 23, 2001
6177685 Nitride-type III-V HEMT having an InN 2DEG channel layer Jan. 23, 2001
6153894 Group-III nitride semiconductor light-emitting device Nov. 28, 2000
6147364 Compound semiconductor device formed of nitrogen-containing gallium compound such as gan, algan or ingan Nov. 14, 2000
6147363 Nitride semiconductor light-emitting device and manufacturing method of the same Nov. 14, 2000
6133618 Semiconductor device having an anti-reflective layer and a method of manufacture thereof Oct. 17, 2000
6111275 Gallium nitride group compound semiconductor light-emitting device and method for fabricating the same Aug. 29, 2000
6093952 Higher power gallium nitride schottky rectifier Jul. 25, 2000
6093965 Gallium nitride-based III-V group compound semiconductor Jul. 25, 2000
6091081 Insulating film comprising amorphous carbon fluoride, a semiconductor device comprising such an insulating film Jul. 18, 2000
6091083 Gallium nitride type compound semiconductor light-emitting device having buffer layer with non-flat surface Jul. 18, 2000
RE36747 Light-emitting device of gallium nitride compound semiconductor Jun. 27, 2000
6072198 Electroluminescent alkaline-earth sulfide phosphor thin films with multiple coactivator dopants Jun. 6, 2000
6072196 semiconductor light emitting devices Jun. 6, 2000
6064078 Formation of group III-V nitride films on sapphire substrates with reduced dislocation densities May. 16, 2000
6051849 Gallium nitride semiconductor structures including a lateral gallium nitride layer that extends from an underlying gallium nitride layer Apr. 18, 2000
6043514 Group III-V type nitride semiconductor device Mar. 28, 2000
6030849 Methods of manufacturing semiconductor, semiconductor device and semiconductor substrate Feb. 29, 2000
6025609 Laser synthesized ceramic electronic devices and circuits and method for making Feb. 15, 2000
6020600 Silicon carbide semiconductor device with trench Feb. 1, 2000
6011278 Lateral silicon carbide semiconductor device having a drift region with a varying doping level Jan. 4, 2000
6005263 Light emitter with lowered heterojunction interface barrier Dec. 21, 1999
5990531 Methods of making high voltage GaN-AlN based semiconductor devices and semiconductor devices made Nov. 23, 1999
5990551 Bonding of silicon carbide chip with a semiconductor Nov. 23, 1999
5969414 Semiconductor package with molded plastic body Oct. 19, 1999
5932894 SiC semiconductor device comprising a pn junction Aug. 3, 1999
5925897 Optoelectronic semiconductor diodes and devices comprising same Jul. 20, 1999
5923058 Aluminum gallium nitride heterojunction bipolar transistor Jul. 13, 1999
5920086 Light emitting device Jul. 6, 1999
5912477 High efficiency light emitting diodes Jun. 15, 1999
5905275 Gallium nitride compound semiconductor light-emitting device May. 18, 1999
5903017 Compound semiconductor device formed of nitrogen-containing gallium compound such as GaN, AlGaN or InGaN May. 11, 1999
5900647 Semiconductor device with SiC and GaAlInN May. 4, 1999
5900648 Semiconductor device having an insulated gate May. 4, 1999
5886367 Epitaxial wafer device including an active layer having a two-phase structure and light-emitting device using the wafer Mar. 23, 1999
5880485 Semiconductor device including Gallium nitride layer Mar. 9, 1999
5877558 Gallium nitride-based III-V group compound semiconductor Mar. 2, 1999
5877516 Bonding of silicon carbide directly to a semiconductor substrate by using silicon to silicon bonding Mar. 2, 1999
5877515 SiC semiconductor device Mar. 2, 1999
5838029 GaN-type light emitting device formed on a silicon substrate Nov. 17, 1998

1 2 3 4 5 6


 
 
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