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Class Information
Number: 438/756
Name: Semiconductor device manufacturing: process > Chemical etching > Liquid phase etching > Silicon oxide
Description: Processes wherein the material undergoing wet chemical etching is a compound of silicon and oxygen.


Patents under this class:
1 2 3 4 5 6 7 8 9

Patent Number Title Of Patent Date Issued
6420275 System and method for analyzing a semiconductor surface Jul. 16, 2002
6406998 Formation of silicided contact by ion implantation Jun. 18, 2002
6406641 Liquid etch endpoint detection and process metrology Jun. 18, 2002
6407005 Method for forming semiconductor device to prevent electric field concentration from being generated at corner of active region Jun. 18, 2002
6403492 Method of manufacturing semiconductor devices with trench isolation Jun. 11, 2002
6403496 Method for forming shallow trench isolations Jun. 11, 2002
6403484 Method to achieve STI planarization Jun. 11, 2002
6399504 Methods and etchants for etching oxides of silicon with low selectivity Jun. 4, 2002
6395634 Glass substrate for magnetic recording medium, magnetic recording medium, and method of manufacturing the same May. 28, 2002
6395638 Method for producing a micromembrane pump body May. 28, 2002
6391780 Method to prevent copper CMP dishing May. 21, 2002
6391793 Compositions for etching silicon with high selectivity to oxides and methods of using same May. 21, 2002
6387813 Method for stripping a low dielectric film with high carbon content May. 14, 2002
6383410 Selective silicon oxide etchant formulation including fluoride salt, chelating agent, and glycol solvent May. 7, 2002
6380099 Porous region removing method and semiconductor substrate manufacturing method Apr. 30, 2002
6376380 Method of forming memory circuitry and method of forming memory circuitry comprising a buried bit line array of memory cells Apr. 23, 2002
6373115 Micromechanical structure, sensor and method for manufacturing the same Apr. 16, 2002
6372650 Method of cleaning substrate and method of manufacturing semiconductor device Apr. 16, 2002
6372602 Method of forming a shallow trench isolation structure in a semiconductor device Apr. 16, 2002
6369008 Cleaning solutions for removing contaminants from the surfaces of semiconductor substrates and cleaning methods using the same Apr. 9, 2002
6368982 Pattern reduction by trimming a plurality of layers of different handmask materials Apr. 9, 2002
6365525 Method of fabricating a semiconductor insulation layer Apr. 2, 2002
6358860 Line width calibration standard manufacturing and certifying method Mar. 19, 2002
6358761 Silicon monitor for detection of H2O2 in acid bath Mar. 19, 2002
6352939 Method for improving the electrical properties of a gate oxide Mar. 5, 2002
6352595 Method and system for cleaning a chemical mechanical polishing pad Mar. 5, 2002
6348419 Modification of the wet characteristics of deposited layers and in-line control Feb. 19, 2002
6333274 Method of manufacturing a semiconductor device including a seamless shallow trench isolation step Dec. 25, 2001
6326314 Integrated inductor with filled etch Dec. 4, 2001
6319861 Method of improving deposition Nov. 20, 2001
6319833 Chemically preventing copper dendrite formation and growth by spraying Nov. 20, 2001
6319839 Approach to form an inter-polysilicon oxide (IPO) layer for charge coupled devices Nov. 20, 2001
6316370 Method for etching doped polysilicon with high selectivity to undoped polysilicon Nov. 13, 2001
6316366 Method of polishing using multi-oxidizer slurry Nov. 13, 2001
6313043 Manufacture of field emission element Nov. 6, 2001
6303506 Compositions for and method of reducing/eliminating scratches and defects in silicon dioxide during CMP process Oct. 16, 2001
6303514 Composition and method for selectively etching a silicon nitride film Oct. 16, 2001
6300186 Method of measuring semiconductor device Oct. 9, 2001
6294396 Monitoring barrier metal deposition for metal interconnect Sep. 25, 2001
6294478 Fabrication process for a semiconductor substrate Sep. 25, 2001
6290863 Method and apparatus for etch of a specific subarea of a semiconductor work object Sep. 18, 2001
6287972 System and method for residue entrapment utilizing a polish and sacrificial fill for semiconductor fabrication Sep. 11, 2001
6287983 Selective nitride etching with silicate ion pre-loading Sep. 11, 2001
6284669 Power transistor with silicided gate and contacts Sep. 4, 2001
6284670 Method of etching silicon wafer and silicon wafer Sep. 4, 2001
6280651 Selective silicon oxide etchant formulation including fluoride salt, chelating agent, and glycol solvent Aug. 28, 2001
6277755 Method for fabricating an interconnect Aug. 21, 2001
6277757 Methods to modify wet by dry etched via profile Aug. 21, 2001
6277725 Method for fabricating passivation layer on metal pad Aug. 21, 2001
6277749 Method of manufacturing a semiconductor integrated circuit device Aug. 21, 2001

1 2 3 4 5 6 7 8 9


 
 
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