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Sputtering system
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.
ELECTROSTATIC APPARATUS
COATING
U.S. Patent 5,851,292. Dec. 22, 1998 S. Minoura et al., assignors to Honda Giken Kogyo KK, Tokyo
An apparatus for electrostatically coating a workpiece comprising a coating gun to which a high voltage will be applied; and an insulating valve mechanism for electrically separating a paint supply passage for an electrically conductive paint to the coating gun. PICKLING
STAINLESS
STEEL
STRIP
U.S. Patent 5,851,304. Dec. 22, 1998 H. Giraud et al,, assignors to Usinor Sacilor, Puteaux, France
A process for pickling a piece of steel and in particular a strip of stainless steel comprising applying an aqueous pickling solution containing hydrochloric acid and ferric and ferrous pickling ions in solution and, for the purpose of maintaining a constant pickling power, having a pH lower than 1 and maintaining the concentration of Fe3+ ions at a value between 1 and 300 g/L by reoxidation by means of an oxygenation of the Fe2+ ions produced during pickling. WASHING
APPARATUS
U.S. Patent 5,851,305. Dec. 22, 1998 Y. Yamada et al., assignors to Zenken Co. Ltd., Funabashi; Kinzolu Kako Gijutsu Kenkyusho Co. Ltd., Tokyo; and Kuraray Co. Ltd., Okayama, all of Japan
A method for washing articles comprising immersing in a detergent containing a nonionic surface active agent and a terpenebased solvent; rinsing with water; September
1999
draining; filtering the rinse water; and returning the rinsewater to the rinse bath, wherein filtration of the rinse water comprises a first stage and a second stage, the first stage comprising a microporous filter with an average pore size of 0.01 to 0.2 microns, and the second stage comprising filtering through activated carbon.
SPUmRING
MULTILAYER
In combination with an electroplating tank having an anode spaced from a cathode, a small parts plating apparatus mounted within the tank being removable from the tank and having a barrel, which is adapted to contain a quantity of small parts to be plated.
SYSTEM
U.S. Patent 5,851,363. Dec. 22, 1998 J. Miller et al., assignors to Johnson Matthey Public Ltd. Co., London
A process for the manufacture of metal multilayer films having perpendicular magnetic anistropy comprising sputter depositing onto a substrate a metal interlayer; hyperthermal processing of the substrate and the metal interlayer; and sputter depositing onto the metal interlayer a multilayer. FORMING
ALUMINUM
CONTACTS
U.S. Patent 5,851,364. Dec. 22, 1998 J. Fu and Z. Xu, assignors to Applied Materials Inc., Santa Clara, Calif:
A process for forming aluminum contacts, which comprises sputter depositing a titanium layer onto a substrate having a plurality of openings therein; forming an oxygen-containing titanium layer over the titanium layer; sputter depositing a titanium nitride layer over the oxygen-containing titanium layer; treating the surface of the titanium nitride layer with a plasma of argon to smooth the surface; and sputter depositing an aluminum layer over the plasma-treated titanium nitride layer.
SYSTEM
U.S. Patent 5,851,365. Dec. 22, 1998 M.A. Scobey, assignor to Corning OCA Corp., Marlborough, Mass.
A low-pressure tron sputtering method.
reactive magneapparatus and
BARREL
APPARATUS
PLATING
U.S. Patent 5,851,368. Dec. 22, 1998 T.P. Rumph, Van Nuys, Calif
ELECTROPHORETIC PHOSPHATED
PAlNTlNG
OF
METAL
U.S. Patent 5,851,371. Dec. 22, 1998 L.E. Steinbrecher and T.J. Zens, assignors to Henkel Corp., Plymouth Meeting, Pa.
A process for reducing or avoiding surface irregularities in electrophoretic painting of phosphated metal surfaces consisting essentially of contacting with an aqueous liquid phosphate conversion coating composition; while the surface is still wet continuously contacting with an aqueous liquid treatment composition comprising water, a trace amount of not more than a total of 0.0002% by weight of hexavalent and trivalent chromium, and at least one component selected from the group consisting of a water-soluble polymer, a water-dispersible polymer, or both; and then apply119
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.
ELECTROSTATIC APPARATUS
COATING
U.S. Patent 5,851,292. Dec. 22, 1998 S. Minoura et al., assignors to Honda Giken Kogyo KK, Tokyo
An apparatus for electrostatically coating a workpiece comprising a coating gun to which a high voltage will be applied; and an insulating valve mechanism for electrically separating a paint supply passage for an electrically conductive paint to the coating gun. PICKLING
STAINLESS
STEEL
STRIP
U.S. Patent 5,851,304. Dec. 22, 1998 H. Giraud et al,, assignors to Usinor Sacilor, Puteaux, France
A process for pickling a piece of steel and in particular a strip of stainless steel comprising applying an aqueous pickling solution containing hydrochloric acid and ferric and ferrous pickling ions in solution and, for the purpose of maintaining a constant pickling power, having a pH lower than 1 and maintaining the concentration of Fe3+ ions at a value between 1 and 300 g/L by reoxidation by means of an oxygenation of the Fe2+ ions produced during pickling. WASHING
APPARATUS
U.S. Patent 5,851,305. Dec. 22, 1998 Y. Yamada et al., assignors to Zenken Co. Ltd., Funabashi; Kinzolu Kako Gijutsu Kenkyusho Co. Ltd., Tokyo; and Kuraray Co. Ltd., Okayama, all of Japan
A method for washing articles comprising immersing in a detergent containing a nonionic surface active agent and a terpenebased solvent; rinsing with water; September
1999
draining; filtering the rinse water; and returning the rinsewater to the rinse bath, wherein filtration of the rinse water comprises a first stage and a second stage, the first stage comprising a microporous filter with an average pore size of 0.01 to 0.2 microns, and the second stage comprising filtering through activated carbon.
SPUmRING
MULTILAYER
In combination with an electroplating tank having an anode spaced from a cathode, a small parts plating apparatus mounted within the tank being removable from the tank and having a barrel, which is adapted to contain a quantity of small parts to be plated.
SYSTEM
U.S. Patent 5,851,363. Dec. 22, 1998 J. Miller et al., assignors to Johnson Matthey Public Ltd. Co., London
A process for the manufacture of metal multilayer films having perpendicular magnetic anistropy comprising sputter depositing onto a substrate a metal interlayer; hyperthermal processing of the substrate and the metal interlayer; and sputter depositing onto the metal interlayer a multilayer. FORMING
ALUMINUM
CONTACTS
U.S. Patent 5,851,364. Dec. 22, 1998 J. Fu and Z. Xu, assignors to Applied Materials Inc., Santa Clara, Calif:
A process for forming aluminum contacts, which comprises sputter depositing a titanium layer onto a substrate having a plurality of openings therein; forming an oxygen-containing titanium layer over the titanium layer; sputter depositing a titanium nitride layer over the oxygen-containing titanium layer; treating the surface of the titanium nitride layer with a plasma of argon to smooth the surface; and sputter depositing an aluminum layer over the plasma-treated titanium nitride layer.
SYSTEM
U.S. Patent 5,851,365. Dec. 22, 1998 M.A. Scobey, assignor to Corning OCA Corp., Marlborough, Mass.
A low-pressure tron sputtering method.
reactive magneapparatus and
BARREL
APPARATUS
PLATING
U.S. Patent 5,851,368. Dec. 22, 1998 T.P. Rumph, Van Nuys, Calif
ELECTROPHORETIC PHOSPHATED
PAlNTlNG
OF
METAL
U.S. Patent 5,851,371. Dec. 22, 1998 L.E. Steinbrecher and T.J. Zens, assignors to Henkel Corp., Plymouth Meeting, Pa.
A process for reducing or avoiding surface irregularities in electrophoretic painting of phosphated metal surfaces consisting essentially of contacting with an aqueous liquid phosphate conversion coating composition; while the surface is still wet continuously contacting with an aqueous liquid treatment composition comprising water, a trace amount of not more than a total of 0.0002% by weight of hexavalent and trivalent chromium, and at least one component selected from the group consisting of a water-soluble polymer, a water-dispersible polymer, or both; and then apply119