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Copper foil for a printed circuit board
PATENTS
Granted in the Metal Finishing Field Printed copies of patents are furnished by the Patent and Trademark Office for $3.00 each. Address orders to: Commissioner of Patents and Trademarks, Washington, D.C. 20231.
PORCBAlN-ENAMIUD STDL SHUTS
u.s. Patent 5,993,974. Nov. 30, 1999 Y. Fukushima et al., assignors to Kawasaki Steel Corp. Hyogo, Japan, and Kawasaki Steel Metal Products & Engineerinf( Inc., Hyogo, Japan A porcelain enameled steel sheet comprising an interstitial layer formed on a surface of an alumi• num-zinc alloy plated steel sheet; and an enamel coating layer formed on the interstitial layer. COATI_ COMPOSITION
u.s. Patent 5,993,975. Nov. 30, 1999 S. Tanaka and T. Nakano, assignors to Kansai Paint Co. Ltd., Japan
A coating composition comprising a polyester resin; a melamine resin curing agent; a chromate rust preventive pigment; organic polymer fine particles having an average particle diameter to 6 to 60 !-Lm, and a curing catalyst, which is a neutralization product between a sulfonic acid and an amine. POLISHING APPARATUS
U.S. Patent 5,997.390. Dec. 7. 1999 J. Hose, assignor to Speedfam Corp., Chandler, Ariz.
A polishing apparatus with im• proved alignment of polishing plates. APPARATUS POll ~II COATING
U.S. Patent 5,997,643. Dec. 7, 1999 T.E. Wi/.wIII et al., assif(nors to Nordsoll Corp., Westlake, Ohio
A system for coating the interior surface of a hollow container body moving along a predetermined path through a can forming ma• chine with a powder coating ma76
terial, the can forming machine having a welding arm comprising a delivery passage extending through the welding arm for transporting a flow of air-en• trained powder, a coating gun mounted to the welding arm and connected to the delivery passage; and an offset nozzle mounted within an outlet opening of the powder gun to form a continuous annular spray opening with an enlarged portion for applying powder onto the interior surface of the container body. Aau...,. STIlI....NG AIlIID CUAN'" COMPOSI'I'ION
U.s. Patent 5,997,658. Dec. 7, 1999 D. W. Peters et al., assignors to Ashland Inc., Dublin, Ohio
A hydroxlamine-free photoresist stripping and cleaning composi• tion comprising 70 to 85% by weight of an alkanolamine, 0.5 to 2.5% of benzotriazole, 0.5 to 2.5% of gallic acid, and the remainder being water. GALVAIlIIIZID STDL SHIO
U.S. Patent 5,997,664. Dec. 7, 1999 K. Tahara et al., assignors to NKK Corp., Tokyo
A method for producing a gal• vannealed steel sheet having an excellent surface appearance. MAGNnIION SPUTnIllNG SOURe.
u.s. Patent 5,997.697. Dec. 7, 1999 P. Gruenenfelder et aL., assignors to Balzers, Liechtenstein
A magnetron sputtering arrange• ment comprising an axially sym• metrical magnetron sputtering source; a holder for positioning a disk-shaped workpiece coaxially
to an axis of symmetry of the sputtering source and at a corre• sponding distance therefrom; wherein the sputtering source has at least two toroidal magnetron electron traps. GALVAIlIIIC IMPOSITION CIILL
U.S. Patent 5,997,701. Dec. 7, 1999 M. Bock, assignor to Sono Press Produktionsgesellschafi Fur Ton• Und Informationstrager mbH, Gutersloh, Germany
An apparatus for the galvanic deposition of a metal layer on a substrate comprising a substrate holder connected to a drive shaft having an outer insulating layer, and a cathode current supplied to the substrate through the drive shaft. C. . . .II POlL POll A PIIINTIID
CIRCUIT BOAIID U.S. Patent 5,997,710. Dec. 7, 1999 M. Ohara et al., assignors to Mitsui Mining & Smelting Co., Ltd., Tokyo
A process and apparatus for pro• ducing an electrolytic copper foil for a printed wiring board. CON'l'llOL A..... POll MDUClNG Mft. ACID MIST . . . . . . . .
U.S. Patent 5,997,711. Dec. 7, 1999 S.H. Bourke, assignor to AON International Inc., Tucson, Ariz.
A method for reducing metal acid or salt evolved from electrolytic baths housed in electrolytic tanks during electrolytic operations, which comprises covering all of the surface of the electrolytic bath with a layer of shredded foam that floats at the surface, shred• ded foam being irregular and den• dritic in shape, lacking in uniform Metel Finishing
Granted in the Metal Finishing Field Printed copies of patents are furnished by the Patent and Trademark Office for $3.00 each. Address orders to: Commissioner of Patents and Trademarks, Washington, D.C. 20231.
PORCBAlN-ENAMIUD STDL SHUTS
u.s. Patent 5,993,974. Nov. 30, 1999 Y. Fukushima et al., assignors to Kawasaki Steel Corp. Hyogo, Japan, and Kawasaki Steel Metal Products & Engineerinf( Inc., Hyogo, Japan A porcelain enameled steel sheet comprising an interstitial layer formed on a surface of an alumi• num-zinc alloy plated steel sheet; and an enamel coating layer formed on the interstitial layer. COATI_ COMPOSITION
u.s. Patent 5,993,975. Nov. 30, 1999 S. Tanaka and T. Nakano, assignors to Kansai Paint Co. Ltd., Japan
A coating composition comprising a polyester resin; a melamine resin curing agent; a chromate rust preventive pigment; organic polymer fine particles having an average particle diameter to 6 to 60 !-Lm, and a curing catalyst, which is a neutralization product between a sulfonic acid and an amine. POLISHING APPARATUS
U.S. Patent 5,997.390. Dec. 7. 1999 J. Hose, assignor to Speedfam Corp., Chandler, Ariz.
A polishing apparatus with im• proved alignment of polishing plates. APPARATUS POll ~II COATING
U.S. Patent 5,997,643. Dec. 7, 1999 T.E. Wi/.wIII et al., assif(nors to Nordsoll Corp., Westlake, Ohio
A system for coating the interior surface of a hollow container body moving along a predetermined path through a can forming ma• chine with a powder coating ma76
terial, the can forming machine having a welding arm comprising a delivery passage extending through the welding arm for transporting a flow of air-en• trained powder, a coating gun mounted to the welding arm and connected to the delivery passage; and an offset nozzle mounted within an outlet opening of the powder gun to form a continuous annular spray opening with an enlarged portion for applying powder onto the interior surface of the container body. Aau...,. STIlI....NG AIlIID CUAN'" COMPOSI'I'ION
U.s. Patent 5,997,658. Dec. 7, 1999 D. W. Peters et al., assignors to Ashland Inc., Dublin, Ohio
A hydroxlamine-free photoresist stripping and cleaning composi• tion comprising 70 to 85% by weight of an alkanolamine, 0.5 to 2.5% of benzotriazole, 0.5 to 2.5% of gallic acid, and the remainder being water. GALVAIlIIIZID STDL SHIO
U.S. Patent 5,997,664. Dec. 7, 1999 K. Tahara et al., assignors to NKK Corp., Tokyo
A method for producing a gal• vannealed steel sheet having an excellent surface appearance. MAGNnIION SPUTnIllNG SOURe.
u.s. Patent 5,997.697. Dec. 7, 1999 P. Gruenenfelder et aL., assignors to Balzers, Liechtenstein
A magnetron sputtering arrange• ment comprising an axially sym• metrical magnetron sputtering source; a holder for positioning a disk-shaped workpiece coaxially
to an axis of symmetry of the sputtering source and at a corre• sponding distance therefrom; wherein the sputtering source has at least two toroidal magnetron electron traps. GALVAIlIIIC IMPOSITION CIILL
U.S. Patent 5,997,701. Dec. 7, 1999 M. Bock, assignor to Sono Press Produktionsgesellschafi Fur Ton• Und Informationstrager mbH, Gutersloh, Germany
An apparatus for the galvanic deposition of a metal layer on a substrate comprising a substrate holder connected to a drive shaft having an outer insulating layer, and a cathode current supplied to the substrate through the drive shaft. C. . . .II POlL POll A PIIINTIID
CIRCUIT BOAIID U.S. Patent 5,997,710. Dec. 7, 1999 M. Ohara et al., assignors to Mitsui Mining & Smelting Co., Ltd., Tokyo
A process and apparatus for pro• ducing an electrolytic copper foil for a printed wiring board. CON'l'llOL A..... POll MDUClNG Mft. ACID MIST . . . . . . . .
U.S. Patent 5,997,711. Dec. 7, 1999 S.H. Bourke, assignor to AON International Inc., Tucson, Ariz.
A method for reducing metal acid or salt evolved from electrolytic baths housed in electrolytic tanks during electrolytic operations, which comprises covering all of the surface of the electrolytic bath with a layer of shredded foam that floats at the surface, shred• ded foam being irregular and den• dritic in shape, lacking in uniform Metel Finishing