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U.S. Patent 6,155,752. Dec. 5, 2000 E.T. Buhlmann, assignor to ITW Gerna AG, Schweiz, Switzerland Powder spray coating equipment comprising an air divider to ad- justably divide a flow of total air of a total-air path into a flow of conveying air of a conveying-air path and a flow of supplemental air of a supplemental-air path in order that when setting a larger conveyed conveying air flow, the supplemental air flow shall be re- duced at a predetermined ratio and vice-versa. Pll-usEATMEIMT ~ ELECTROLESS NICKEL PLATING U.S. Patent 6,156,218. Dec. 5, 2000 T. Okubo and Y. Hisumi, assignors to Japan Energy Corp., Japan A method for inactivating a cata- lyst attached to a copper circuit board produced by an electroless copper plating technique compris- ing the steps of applying an aque- ous thiosulfate solution selected from the group consisting of so- dium thiosulfate, potassium thio- sulfate, and ammonium thiosul- fate to the electrolessly copper plated circuit board, and, thereaf- ter, electrolessly nickel plating the copper circuit board. COPPER HTCHIII6 COMPOSITION U.S. Patent 6,156,221. Dec. 5, 2000 J.M. Lauffer et al., assignors to International Business Machines Corp., Arrnonk, N.Y. A process of etching copper on a printed circuit board wherein the circuit board is placed in contact with an etchant formulation corn- West Coast Rack and Manufacturing prising 10 to 500 g/L of an alkali metal or ammonium persulfate salt; up to 50% by volume of a solution containing a proton do- nor; and up to the solubility limit of a phosphate salt; and during the time of contact, a sodium phosphate dibasic solution is con- tinuously added to refresh and maintain a 0.058 M sodium phos- phate dibasic concentration in the etchant solution, said process be- ing performed from ambient to 50°C. coDrdDosnlo~ WITII NICKEL U.S. Patent 6,156,390. Dec. 5, 2000 J.R. Henry and M.W. Henry, assignors to Wear-Coat International Inc., Rock Island, Ill. A process for the codeposition of Design • Manufacture • Repair Plating Equipment, Plating Racks, PCB Racks,Teflon Tipped Thumb Screws,Anode Baskets, Anode Bags, Stainless Steel Baskets, Black Oxide Baskets, Lead and Carbon Anodes, Plating and Masking Tapes,Tanks, Tank Liners, Barrels and Waste Water Treatment. Material Handling Equipment Carts, Baskets,Trays, Metal Fabrication and Welding~ Light Machine Work, Castings, PV¢ Coating and Sandblasting. Let us be part of your team to a winning finish! 5730 Paloma Avenue Los Angeles, California 90011 Tel: (323) 234-0604 Fax: (323) 234-2675 www.westc oastrack.com Servicing the United States, Canada and Mexico Circle 089 on reader card or go to www.thru.to/webconnect Circle 061 on reader card or go to www.thru.to/webconnect September 2001 103

Copper etching composition

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U.S. Patent 6,155,752. Dec. 5, 2000 E.T. Buhlmann, assignor to ITW Gerna AG, Schweiz, Switzerland

Powder spray coating equipment comprising an air divider to ad- justably divide a flow of total air of a total-air path into a flow of conveying air of a conveying-air path and a flow of supplemental air of a supplemental-air path in order that when setting a larger conveyed conveying air flow, the supplemental air flow shall be re- duced at a predetermined ratio and vice-versa.

Pl l -usEATMEIMT ~ ELECTROLESS NICKEL PLATING U.S. Patent 6,156,218. Dec. 5, 2000 T. Okubo and Y. Hisumi, assignors to Japan Energy Corp., Japan

A method for inactivating a cata-

lyst attached to a copper circuit board produced by an electroless copper plating technique compris- ing the steps of applying an aque- ous thiosulfate solution selected from the group consisting of so- dium thiosulfate, potassium thio- sulfate, and ammonium thiosul- fate to the electrolessly copper plated circuit board, and, thereaf- ter, electrolessly nickel plating the copper circuit board.

COPPER HTCHI I I6 COMPOSIT ION U.S. Patent 6,156,221. Dec. 5, 2000 J.M. Lauffer et al., assignors to International Business Machines Corp., Arrnonk, N.Y.

A process of etching copper on a printed circuit board wherein the circuit board is placed in contact with an etchant formulation corn-

West Coast Rack and Manufacturing

prising 10 to 500 g/L of an alkali metal or ammonium persulfate salt; up to 50% by volume of a solution containing a proton do- nor; and up to the solubility limit of a phosphate salt; and during the time of contact, a sodium phosphate dibasic solution is con- tinuously added to refresh and maintain a 0.058 M sodium phos- phate dibasic concentration in the etchant solution, said process be- ing performed from ambient to 50°C.

c o D r d D o s n l o ~ WITII NICKEL U.S. Patent 6,156,390. Dec. 5, 2000 J.R. Henry and M.W. Henry, assignors to Wear-Coat International Inc., Rock Island, Ill.

A process for the codeposition of

Design • Manufacture • Repair Plating Equipment, Plating Racks,

PCB Racks, Teflon Tipped Thumb Screws, Anode Baskets, Anode Bags, Stainless Steel Baskets,

Black Oxide Baskets, Lead and Carbon Anodes, Plating and Masking Tapes, Tanks,

Tank Liners, Barrels and Waste Water Treatment.

Material Handling Equipment Carts, Baskets, Trays, Metal Fabrication and

Welding~ Light Machine Work, Castings, PV¢ Coating and Sandblasting.

Let us be part of your team to a winning finish!

5730 Paloma Avenue Los Angeles, California 90011

Tel: (323) 234-0604 Fax: (323) 234-2675 www.westc oastrack.com

Servicing the United States, Canada and Mexico

Circle 089 on reader card or go to www.thru.to/webconnect Circle 061 on reader card or go to www.thru.to/webconnect

September 2001 103