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Class Information
Number: 257/607
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > With specified dopant (e.g., plural dopants of same conductivity in same region)
Description: Subject matter wherein the active solid-state device contains impurity dopant atoms which are specified and are used to change the conductive properties of the semiconductor material.


Sub-classes under this class:

Class Number Class Name Patents
257/610 Deep level dopant 93
257/609 For compound semiconductor (e.g., deep level dopant) 105
257/608 Switching device based on filling and emptying of deep energy levels 31


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
5962914 Reduced bird's beak field oxidation process using nitrogen implanted into active region Oct. 5, 1999
5959333 Reduction of dopant diffusion by the co-implantation of impurities into the transistor gate conductor Sep. 28, 1999
5939769 Bipolar power transistor with high collector breakdown voltage and related manufacturing process Aug. 17, 1999
5936287 Nitrogenated gate structure for improved transistor performance and method for making same Aug. 10, 1999
5874772 Semiconductor device Feb. 23, 1999
5872387 Deuterium-treated semiconductor devices Feb. 16, 1999
5838058 Semiconductor substrate and semiconductor device employing the same Nov. 17, 1998
5825066 Control of juction depth and channel length using generated interstitial gradients to oppose dopant diffusion Oct. 20, 1998
5825052 Semiconductor light emmitting device Oct. 20, 1998
5821584 Thin film transistors comprising drain offset regions Oct. 13, 1998
5789802 Dopant profile spreading for arsenic source/drain Aug. 4, 1998
5773847 Semiconductor device having an active layer with separate layers where one of the layers acts as crystal nuclei for the other Jun. 30, 1998
5753353 Soi Substrate May. 19, 1998
5745517 Alternative doping for AlGaInP laser diodes fabricated by impurity-induced layer disordering (IILD) Apr. 28, 1998
5734195 Semiconductor wafer for epitaxially grown devices having a sub-surface getter region Mar. 31, 1998
5731626 Process for controlling dopant diffusion in a semiconductor layer and semiconductor layer formed thereby Mar. 24, 1998
5668397 High frequency analog transistors, method of fabrication and circuit implementation Sep. 16, 1997
5659183 Thin film transistor having a drain offset region Aug. 19, 1997
5648673 Semiconductor device having metal silicide film on impurity diffused layer or conductive layer Jul. 15, 1997
5614736 Gallium phosphate light emitting diode with zinc-doped contact Mar. 25, 1997
5614733 Semiconductor device having crystalline thin film transistors Mar. 25, 1997
5612548 Diamond light-emitting element Mar. 18, 1997
5610415 Turn-off semiconductor component having amphoteric properties Mar. 11, 1997
5600167 Semiconductor device having low contact resistance Feb. 4, 1997
5598025 Semiconductor device comprises an impurity layer having boron ions in the form of clusters of icosahedron structure Jan. 28, 1997
5576572 Semiconductor integrated circuit device and method of manufacturing the same Nov. 19, 1996
5574307 Semiconductor device and method of producing the same Nov. 12, 1996
5569953 Semiconductor device having an isolation region enriched in oxygen Oct. 29, 1996
5557129 Semiconductor MOSFET device having a shallow nitrogen implanted channel region Sep. 17, 1996
5548143 Metal oxide semiconductor transistor and a method for manufacturing the same Aug. 20, 1996
5543637 Silicon carbide semiconductor devices having buried silicon carbide conduction barrier layers therein Aug. 6, 1996
5532508 Semiconductor device with LDD structure Jul. 2, 1996
5514902 Semiconductor device having MOS transistor May. 7, 1996
5481121 Semiconductor device having improved crystal orientation Jan. 2, 1996
5475252 Process for manufacture of radiation resistant power MOSFET and radiation resistant power MOSFET Dec. 12, 1995
5468974 Control and modification of dopant distribution and activation in polysilicon Nov. 21, 1995
5466955 Field effect transistor having an improved transistor characteristic Nov. 14, 1995
5466955 Field effect transistor having an improved transistor characteristic Nov. 14, 1995
5464991 Nonlinear optical materials and their manufacturing method Nov. 7, 1995
5457337 Low-noise gain-mode impurity band conduction detector design Oct. 10, 1995
5444284 Semiconductor device including polysilicon semiconductor element and MOS-FET as the element thereof Aug. 22, 1995
5426329 Semiconductor device with arsenic doped silicon thin film interconnections or electrodes Jun. 20, 1995
5422731 Semiconductor arrangement made of compound semiconductor material Jun. 6, 1995
5412244 Electrically-programmable low-impedance anti-fuse element May. 2, 1995
5408125 Semiconductor process for manufacturing semiconductor device with increased operating voltages Apr. 18, 1995
5399900 Isolation region in a group III-V semiconductor device and method of making the same Mar. 21, 1995
5391905 Integrated logic circuit Feb. 21, 1995
5389799 Semiconductor device Feb. 14, 1995
5389809 Silicided MOS transistor Feb. 14, 1995
5387807 P-N junction diffusion barrier employing mixed dopants Feb. 7, 1995

1 2 3 4 5 6


 
 
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