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Class Information
Number: 257/382
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Field effect device > Having insulated electrode (e.g., mosfet, mos diode) > Insulated gate field effect transistor in integrated circuit > With contact to source or drain region of refractory material (e.g., polysilicon, tungsten, or silicide)
Description: Subject matter wherein the device has an electrical contact to its source region or drain region wherein the contact is made of a refractory or platinum group metal, or of other material which has a melting point above that of the iron group of metals and which is resistant to heat (e.g., of polysilicon, tungsten or silicide).


Sub-classes under this class:

Class Number Class Name Patents
257/383 Contact of refractory or platinum group metal (e.g., molybdenum, tungsten, or titanium) 296
257/384 Including silicide 488
257/385 Multiple polysilicon layers 151


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14

Patent Number Title Of Patent Date Issued
5895948 Semiconductor device and fabrication process thereof Apr. 20, 1999
5894164 High voltage semiconductor device Apr. 13, 1999
5894160 Method of forming a landing pad structure in an integrated circuit Apr. 13, 1999
5894169 Low-leakage borderless contacts to doped regions Apr. 13, 1999
5880500 Semiconductor device and process and apparatus of fabricating the same Mar. 9, 1999
5877535 CMOS semiconductor device having dual-gate electrode construction and method of production of the same Mar. 2, 1999
5869864 Field effect controlled semiconductor component Feb. 9, 1999
5869874 Field effect transistor with barrier layer Feb. 9, 1999
5869875 Lateral diffused MOS transistor with trench source contact Feb. 9, 1999
5864155 Semiconductor array with self-adjusted contacts Jan. 26, 1999
5864160 Transistor device with reduced hot carrier injection effects Jan. 26, 1999
5856693 Semiconductor integrated circuit device containing MOS protection circuit Jan. 5, 1999
5847465 Contacts for semiconductor devices Dec. 8, 1998
5844284 Damage free buried contact using salicide technology Dec. 1, 1998
5844281 Semiconductor integrated circuit device with electrostatic protective function Dec. 1, 1998
5838050 Hexagon CMOS device Nov. 17, 1998
5838051 Tungsten policide contacts for semiconductor devices Nov. 17, 1998
5838068 Integrated circuitry with interconnection pillar Nov. 17, 1998
5834816 MOSFET having tapered gate electrode Nov. 10, 1998
5831899 Local interconnect structure and process for six-transistor SRAM cell Nov. 3, 1998
5831281 Thin film transistor Nov. 3, 1998
5831307 Silicon damage free process for double poly emitter and reverse MOS in BICMOS application Nov. 3, 1998
5821629 Buried structure SRAM cell and methods for fabrication Oct. 13, 1998
5818100 Product resulting from selective deposition of polysilicon over single crystal silicon substrate Oct. 6, 1998
5818091 Semiconductor device with selectively patterned connection pad layer for increasing a contact margin Oct. 6, 1998
5814862 Metallic source line and drain plug with self-aligned contacts for flash memory device Sep. 29, 1998
5814886 Semiconductor device having local connections formed by conductive plugs and method of making the same Sep. 29, 1998
5804862 Semiconductor device having contact hole open to impurity region coplanar with buried isolating region Sep. 8, 1998
5804846 Process for forming a self-aligned raised source/drain MOS device and device therefrom Sep. 8, 1998
5801421 Staggered contact placement on CMOS chip Sep. 1, 1998
5801424 MOSFET with reduced leakage current Sep. 1, 1998
5798554 MOS-technology power device integrated structure and manufacturing process thereof Aug. 25, 1998
5798549 Conductive layer overlaid self-aligned MOS-gated semiconductor devices Aug. 25, 1998
5793083 Method for designing shallow junction, salicided NMOS transistors with decreased electrostatic discharge sensitivity Aug. 11, 1998
5780896 Semiconductor device having shallow impurity region without short-circuit between gate electrode and source and drain regions and process of fabrication thereof Jul. 14, 1998
5777370 Trench isolation of field effect transistors Jul. 7, 1998
5767552 Structure for ESD protection in semiconductor chips Jun. 16, 1998
5763923 Compound PVD target material for semiconductor metallization Jun. 9, 1998
5760451 Raised source/drain with silicided contacts for semiconductor devices Jun. 2, 1998
5757050 Field effect transistor having contact layer of transistor gate electrode material May. 26, 1998
5751031 Memory and other integrated circuitry having a conductive interconnect line pitch of less than 0.6 micron May. 12, 1998
5744843 CMOS power device and method of construction and layout Apr. 28, 1998
5742088 Process having high tolerance to buried contact mask misalignment by using a PSG spacer Apr. 21, 1998
5739573 Semiconductor device with improved salicide structure and a method of manufacturing the same Apr. 14, 1998
5736770 Semiconductor device with conductive connecting layer and abutting insulator section made of oxide of same material Apr. 7, 1998
5734179 SRAM cell having single layer polysilicon thin film transistors Mar. 31, 1998
5729055 Integrated circuitry having a thin film polysilicon layer in ohmic contact with a conductive layer Mar. 17, 1998
5719429 High frequency/high output insulated gate semiconductor device with reduced and balanced gate resistance Feb. 17, 1998
5717242 Integrated circuit having local interconnect for reduing signal cross coupled noise Feb. 10, 1998
5710438 Semiconductor device with a silicide layer Jan. 20, 1998

1 2 3 4 5 6 7 8 9 10 11 12 13 14


 
 
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