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Class Information
Number: 438/690
Name: Semiconductor device manufacturing: process > Chemical etching > Combined with the removal of material by nonchemical means (e.g., ablating, abrading, etc.)
Description: Processes wherein the chemical removal is accompanied by the removal, either concurrently or consecutively, of material by nonchemical means.


Sub-classes under this class:

Class Number Class Name Patents
438/691 Combined mechanical and chemical material removal 728


Patents under this class:
1 2 3 4 5 6 7 8 9 10

Patent Number Title Of Patent Date Issued
5395788 Method of producing semiconductor substrate Mar. 7, 1995
5389579 Method for single sided polishing of a semiconductor wafer Feb. 14, 1995
5376225 Method of forming fine structure on compound semiconductor with inclined ion beam etching Dec. 27, 1994
5360765 Method of forming electrodes of semiconductor device Nov. 1, 1994
5346585 Use of a faceted etch process to eliminate stringers Sep. 13, 1994
5314709 Unzippable polymer mask for screening operations May. 24, 1994
5302547 Systems for patterning dielectrics by laser ablation Apr. 12, 1994
5270252 Method of forming platinum and platinum silicide schottky contacts on beta-silicon carbide Dec. 14, 1993
5268065 Method for thinning a semiconductor wafer Dec. 7, 1993
5259925 Method of cleaning a plurality of semiconductor devices Nov. 9, 1993
5198388 Method of forming interconnection patterns Mar. 30, 1993
5171718 Method for forming a fine pattern by using a patterned resist layer Dec. 15, 1992
5110764 Method of making a beveled semiconductor silicon wafer May. 5, 1992
5082522 Method for forming patterned diamond thin films Jan. 21, 1992
5081049 Sculpted solar cell surfaces Jan. 14, 1992
5035770 Methods of making surface relief gratings Jul. 30, 1991
5024723 Method of producing a thin silicon on insulator layer by wafer bonding and chemical thinning Jun. 18, 1991
5013692 Process for preparing a silicon nitride insulating film for semiconductor memory device May. 7, 1991
5011565 Dotted contact solar cell and method of making same Apr. 30, 1991
5011567 Method of fabricating solar cells Apr. 30, 1991
4978639 Method for the simultaneous formation of via-holes and wraparound plating on semiconductor chips Dec. 18, 1990
4962064 Method of planarization of topologies in integrated circuit structures Oct. 9, 1990
4954459 Method of planarization of topologies in integrated circuit structures Sep. 4, 1990
4879258 Integrated circuit planarization by mechanical polishing Nov. 7, 1989
4874459 Low damage-producing, anisotropic, chemically enhanced etching method and apparatus Oct. 17, 1989
4764485 Method for producing via holes in polymer dielectrics Aug. 16, 1988
4713353 Method of producing a transparent photocathode Dec. 15, 1987
4575921 Silicon nitride formation and use in self-aligned semiconductor device manufacturing method Mar. 18, 1986
4568409 Precision marking of layers Feb. 4, 1986
4528065 Photoelectric conversion device and its manufacturing method Jul. 9, 1985
4525924 Method for producing a plurality of semiconductor circuits Jul. 2, 1985
4465550 Method and apparatus for slicing semiconductor ingots Aug. 14, 1984
4247579 Method for metallizing a semiconductor element Jan. 27, 1981
4021276 Method of making rib-structure shadow mask for ion implantation May. 3, 1977

1 2 3 4 5 6 7 8 9 10


 
 
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