Chemical-Mechanical Polishing Technique U.S. Patent 5439,551. Aug. 8, 1995 S. MeMe and TT Doan, assignors to Micron Technology Inc., Boise, ldaho A method of detecting a polishing end point in a chemical-mechanical polishing planarization process comprising chemical- mechanical polishing an outer surface of a semiconductor substrate using a chemical- mechanical polishing pad; during such chemical-mechanical polishing, measuring sound waves emanating from the chemical- mechanical polishing action of the sub- strate against the pad; detecting a change in the sound waves as the surface being chem- ical-mechanical polished becomes substan- tially planar; and ceasing chemical-me- chanical polishing upon detection of the change. Multilayer Automotive Coating U.S. Patent 5,439,710. Aug. 8, 1995 B. Vogt et a/., assignors to Herberts GmbH, Wuppedal, Germany A method of manufacturing a multilayer coating by applying a number of coating layers based on organic resins in succes- sion to a substrate for coating, character- ized in that at least three layers are applied on top of each other, each of the layers including resins having polar groups, the polarity of the polar groups of the resins within each layer being the same and each layer containing polar groups of opposite polarity to a next layer, resulting in a layer structure having resin layers of alternating polarity and improved adhesion. Aqueous Soldermask U.S. Patent 5,439,779. Aug. 8, 1995 R.A. Day et al, assignors to IBM Corp., Armonk, N. Y A cationically polymerizable composi- tion for forming a soldermask comprising an aqueously dispersed photosensitive cat- ionically polymerizable epoxy-based resin system; 0.1 to 15 parts by weight of a cationic photoinitiator capable of initiating polymerization in the epoxidized resin sys- tem upon exposure to actinic radiation; and a surfactant; wherein the composition is essentially free of organic solvents, and the composition when cured, is a solder mask that can withstand solder temperatures of 260°C. Protective Coating for Anodized Aluminum U.S. Patent 5,439,747. Aug. 8, 1995 SD. Sturdevant et al, assignors to PPG industries Inc., Pittsburgh Anodized aluminum having a clear coating in which the coating comprises the thermosetting reaction product of a crosslinking agent and a film-forming resin component consisting of a member selected from the group consisting of polyester polymers, thermosetting acrylic polymers, and mixtures thereof; and a silane. Device for Pickling U.S. Patent 5,441,062. Aug. 15, 1995 M. Nogues, assignor to Sollac, Puteaux, France A device for pickling edge portions of a metal sheet immersed in a reactive solution by creating ultrasonically induced cavita- tion in the reactive solution located in the vicinity of the edge portion. Coated Fastener U.S. Patent 5441,373. Aug. 15, 1995 EA. Kish and PM. Vadhar, assignors to ///inois Tool Works Inc., Glenview, /I/. Circle 091 on reader information card Decorative and Functional Plating If maximum brightness and ductility in decorative plating are your oals, our Cuflefl copper, Reflecta@ nickel, Besplate@ nicke , Econo-Chrome@ chrome and other plating processes 7 provide a beautiful finish. And for the toughest, yet brightest i;. functional applications, our Ro#ofl, Ecolozinc@ a?d Ekolasld zinc plating systems and Redip” chromate conversion coatings deliver the highest-quality plating performance. For more information, please call or write today. ROHCO DIVISION 2910 Harvard Avenue, Cleveland, OH 44105-3010 Telephone 216 441-4900 Fax 216 441-1377 Telex 3729244 Circle 049 on reader information card 102 METAL FINISHING ?? APRIL 1996
Transcript
Chemical-Mechanical Polishing Technique U.S. Patent 5439,551. Aug. 8, 1995 S. MeMe and TT Doan, assignors to Micron Technology Inc., Boise, ldaho
A method of detecting a polishing end point in a chemical-mechanical polishing planarization process comprising chemical- mechanical polishing an outer surface of a semiconductor substrate using a chemical- mechanical polishing pad; during such chemical-mechanical polishing, measuring sound waves emanating from the chemical- mechanical polishing action of the sub- strate against the pad; detecting a change in the sound waves as the surface being chem- ical-mechanical polished becomes substan- tially planar; and ceasing chemical-me- chanical polishing upon detection of the change.
Multilayer Automotive Coating U.S. Patent 5,439,710. Aug. 8, 1995 B. Vogt et a/., assignors to Herberts GmbH, Wuppedal, Germany
A method of manufacturing a multilayer coating by applying a number of coating layers based on organic resins in succes-
sion to a substrate for coating, character- ized in that at least three layers are applied on top of each other, each of the layers including resins having polar groups, the polarity of the polar groups of the resins within each layer being the same and each layer containing polar groups of opposite polarity to a next layer, resulting in a layer structure having resin layers of alternating polarity and improved adhesion.
Aqueous Soldermask U.S. Patent 5,439,779. Aug. 8, 1995 R.A. Day et al, assignors to IBM Corp., Armonk, N. Y
A cationically polymerizable composi- tion for forming a soldermask comprising an aqueously dispersed photosensitive cat- ionically polymerizable epoxy-based resin system; 0.1 to 15 parts by weight of a cationic photoinitiator capable of initiating polymerization in the epoxidized resin sys- tem upon exposure to actinic radiation; and a surfactant; wherein the composition is essentially free of organic solvents, and the composition when cured, is a solder mask that can withstand solder temperatures of 260°C.
Protective Coating for Anodized Aluminum U.S. Patent 5,439,747. Aug. 8, 1995 SD. Sturdevant et al, assignors to PPG industries Inc., Pittsburgh
Anodized aluminum having a clear coating in which the coating comprises the thermosetting reaction product of a crosslinking agent and a film-forming resin component consisting of a member selected from the group consisting of polyester polymers, thermosetting acrylic polymers, and mixtures thereof; and a silane.
Device for Pickling U.S. Patent 5,441,062. Aug. 15, 1995 M. Nogues, assignor to Sollac, Puteaux, France
A device for pickling edge portions of a metal sheet immersed in a reactive solution by creating ultrasonically induced cavita- tion in the reactive solution located in the vicinity of the edge portion.
Coated Fastener U.S. Patent 5441,373. Aug. 15, 1995 EA. Kish and PM. Vadhar, assignors to ///inois Tool Works Inc., Glenview, /I/.
Circle 091 on reader information card
Decorative and Functional Plating If maximum brightness and ductility in decorative plating are your oals, our Cuflefl copper, Reflecta@ nickel, Besplate@ nicke , Econo-Chrome@ chrome and other plating processes 7 provide a beautiful finish. And for the toughest, yet brightest i;. functional applications, our Ro#ofl, Ecolozinc@ a?d Ekolasld zinc plating systems and Redip” chromate conversion coatings deliver the highest-quality plating performance. For more information, please call or write today.
A coated fastener, comprising a fastener having a predetermined configuration with a pair of oppositely disposed sides; and coating means, disposed upon the fastener, comprising 100% dry solids, which are substantially free of solvent emissions when applied to the fastener and during curing thereof.
Apparatus for Blast Cleaning U.S. Patent 5,441,443. Aug. i5, 1995 J W. Roberts, assignor to Nelco Mfg. Corp., Oklahoma City Ok/a.
An apparatus for blast cleaning a sur- face, comprising a housing having a blast corridor, a return corridor, and a blast open- ing, the blast opening communicating with the blast corridor and the return corridor; blast means for propelling abrasive mate- rial through the blast corridor and the blast opening against a surface to be blast cleaned; and a hopper communicating with the return corridor to recover spent abra- sive material; wherein the housing and hopper cooperate to gravity feed abrasive material to the blast means when the open- ing is disposed against a surface oriented between forty-five degrees over verticality and forty-five degrees under verticality.
Cleaner for Aluminum U.S. Patent 5,441,572. Aug. 15, 1995 E.A. Rodzewich, assignor to Befz Laborafories Inc., Jrevose, Pa.
A method for preventing oxide buildup on an aluminum surface at ambient temper- ature, which comprises contacting with a treatment comprising potassium hydroxide, a silicate compound, and an iminodipropi- onate amphoteric surfactant, wherein the surface is contacted at a pH of 10-13, said treatment dissolved in an aqueous medium in a concentration of 1.75 to 10% by vol- ume.
Sputtering Apparatus U.S. Patent 5,441,614. Aug. 75, 1995 D.L. Krause and DC. Wojewoda, assignors fo AT&J Corp., Murray Hi//, N. J.
A method and apparatus for planar mag- netron sputtering.
Anodizing Apparatus U.S. Patent 5,441,618. Aug. 15, 1995 K. Matsuda and H. Mori, assignors to Casio Computer Co. Ltd., Tokyo
An anodizing apparatus for oxidizing a conducting film on a substrate in an elec-
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trolyte by an anodization treatment, com- prising an electrolyte tank wherein only one substrate at a time is dipped into the electrolyte; and a single cathode arranged in the electrolyte so that a conducting film to be anodized on the only one substrate and the single cathode face each other with a predetermined distance therebetween, a formation voltage being applied between the single cathode and the conductive film of the only one substrate to form an anod- ized film on the conducting film of the only one substrate.
Electroplating Apparatus U.S. Patent 5,441,620. Aug. 15, 1995 S. Nishimura et a/., assignors to Yamaha Corp., Japan
An electroplating apparatus comprising a switching unit having a first input port connected with a positive electrode, a sec- ond input port connected with a negative electrode, a first output port connected with an insoluble conductive member, a second output port connected with a cathode mem- ber, and a third output port connected with a soluble conductive member, and shifted between a first position and a second posi- tion, said switching unit connecting the
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