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Class Information
Number: 438/700
Name: Semiconductor device manufacturing: process > Chemical etching > Combined with coating step > Formation of groove or trench
Description: Processes wherein at least one groove or trench is formed by a combination of chemical etching and material deposition.


Sub-classes under this class:

Class Number Class Name Patents
438/702 Plural coating steps 680
438/701 Tapered configuration 511


Patents under this class:
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Patent Number Title Of Patent Date Issued
6548410 Method of fabricating wires for semiconductor devices Apr. 15, 2003
6544905 Metal gate trim process by using self assembled monolayers Apr. 8, 2003
6541369 Method and apparatus for reducing fixed charges in a semiconductor device Apr. 1, 2003
6537733 Method of depositing low dielectric constant silicon carbide layers Mar. 25, 2003
6537895 Method of forming shallow trench isolation in a silicon wafer Mar. 25, 2003
6537914 Integrated circuit device isolation methods using high selectivity chemical-mechanical polishing Mar. 25, 2003
6537917 Method for fabricating electrically insulating layers Mar. 25, 2003
6534367 Trench-gate semiconductor devices and their manufacture Mar. 18, 2003
6534415 Method of removing polymer residues after tungsten etch back Mar. 18, 2003
6531067 Method for forming contact hole Mar. 11, 2003
6531265 Method to planarize semiconductor surface Mar. 11, 2003
6531778 Semiconductor device and method of production thereof Mar. 11, 2003
6528426 Integrated circuit interconnect and method Mar. 4, 2003
6528428 Method of forming dual damascene structure Mar. 4, 2003
6524963 Method to improve etching of organic-based, low dielectric constant materials Feb. 25, 2003
6521538 Method of forming a trench with a rounded bottom in a semiconductor device Feb. 18, 2003
6518144 Semiconductor device having trenches and process for same Feb. 11, 2003
6518174 Combined resist strip and barrier etch process for dual damascene structures Feb. 11, 2003
6518194 Intermediate transfer layers for nanoscale pattern transfer and nanostructure formation Feb. 11, 2003
6514860 Integration of organic fill for dual damascene process Feb. 4, 2003
6511908 Method of manufacturing a dual damascene structure using boron nitride as trench etching stop film Jan. 28, 2003
6511916 Method for removing the photoresist layer in the damascene process Jan. 28, 2003
6509240 Angle implant process for cellular deep trench sidewall doping Jan. 21, 2003
6506660 Semiconductor with nanoscale features Jan. 14, 2003
6503840 Process for forming metal-filled openings in low dielectric constant dielectric material while inhibiting via poisoning Jan. 7, 2003
6503842 Plasmaless dry contact cleaning method using interhalogen compounds Jan. 7, 2003
6498072 Process for producing semiconductor device Dec. 24, 2002
6498105 Method of forming fine patterns of a semiconductor device Dec. 24, 2002
6495411 Technique to improve deep trench capacitance by increasing surface thereof Dec. 17, 2002
6495451 Method of forming interconnect Dec. 17, 2002
6495464 Method and apparatus for fixed abrasive substrate preparation and use in a cluster CMP tool Dec. 17, 2002
6492276 Hard masking method for forming residue free oxygen containing plasma etched layer Dec. 10, 2002
6489234 Method of making a semiconductor device Dec. 3, 2002
6486059 Dual damascene process using an oxide liner for a dielectric barrier layer Nov. 26, 2002
6482701 Integrated gate bipolar transistor and method of manufacturing the same Nov. 19, 2002
6482744 Two step plasma etch using variable electrode spacing Nov. 19, 2002
6479388 Methods of forming materials over uneven surface topologies, and methods of forming insulative materials over and between conductive lines Nov. 12, 2002
6479394 Method of low-selective etching of dissimilar materials having interfaces at non-perpendicular angles to the etch propagation direction Nov. 12, 2002
6475811 System for and method of using bacteria to aid in contact hole printing Nov. 5, 2002
6472318 Method of fabricating semiconductor device having trench interconnection Oct. 29, 2002
6472324 Method of manufacturing trench type element isolation structure Oct. 29, 2002
6468909 Isolation and/or removal of ionic contaminants from planarization fluid compositions using macrocyclic polyethers and methods of using such compositions Oct. 22, 2002
6468910 Slurry for chemical mechanical polishing silicon dioxide Oct. 22, 2002
6465296 Vertical source/drain contact semiconductor Oct. 15, 2002
6465351 Method of forming a capacitor lower electrode using a CMP stopping layer Oct. 15, 2002
6465352 Method for removing dry-etching residue in a semiconductor device fabricating process Oct. 15, 2002
6465355 Method of fabricating suspended microstructures Oct. 15, 2002
6465358 Post etch clean sequence for making a semiconductor device Oct. 15, 2002
6461226 Chemical mechanical polishing of a metal layer using a composite polishing pad Oct. 8, 2002
6461533 Etchant for silicon oxide and method Oct. 8, 2002

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