Selective metal electrodeposition process and apparatus

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source to the shroud means; and means for generating a vacuum at the shroud means for recovering abrasive material delivered to the shroud means and material removed from the surface; the improvement com- prising electrical control circuit means including vacuum sensing vacuum respon- sive electrical switch means for sensing an unacceptable vacuum level at the shroud means, and means responsive to the vac- uum sensing switch means for indicating an unacceptable vacuum level. Parts Cleaning Machine U.S. Patenf 5,369,053. Nov. 29, 1994 KM Won, assignor to Ran&off Co., Hamilton, Ohio A parts cleaning machine comprising a reservoir; a first tank discrete from the reservoir for containing wash solution; a second tank discrete from the reservoir and the first tank for containing rinse solution; means for transferring wash solution and rinse solution from the reservoir, a basket for holding parts; a first means mounted to the reservoir for moving the basket between loading, cleaning, and draining positions; a second means for rotating the basket when it is in the cleaning and draining positions; and a plurality of spray means mounted within the reservoir for directing wash solution against the basket. Cleaning Apparatus U.S. Palent5,367,641. Nov. 29, 1994 M.D. Smith, Concord, N./-Iand G.F. bVe/ls, Charlotte, N.C. A portable containment unit for an abrasive blasting system and process, for preventing escape of grit and contaminated particulate material into the atmosphere. Powder Coating Spray Gun U.S. Patent5,368,237. Nov. 29, 1994 7X4.Fulkerson, assignor to Nordson Corp., IWake, Ohio A powder spray nozzle for spraying powder coating material, comprising a nozzle body of electrically nonconductive material having an axial throughbore ex- tending between an enclosed forward end and a rearward end adapted to receive powder coating material; and discharge slot RM4 0 REMOVES WASTE WATER CONTAMINANTS Flocculant Removes: Applications Include: ?? Emulsified Oils . Heavy Metals ?? Suspended Solids in Waste Water ?? - Washdown Water ?? Parts Washer Water ?? Vibratory deburring & finishing ?? Metal working/coolants CETCO also manufactures a complete line of treatment equipment for use with the RM-10 chemicals. COLLOID ENVIRONMENTAL TECHNOLOGIES COMPANY 1350 West Shure Drive ??Arlington Hts., ??IL 6ooo4-1440 ??USA Tel: (708) 3924800 0 800-527-9948 ??Fax: (708) 506-6150 3” (x ,y*,,, am -‘1,,1*,, ‘&we we 0, wa ?x “** 8%6>” ,,a,“& ~,,aYl%a$Pl,,#lIIF m%mw*,wB*,*l*~l, -i &wU” .iilOl’ iyBl Circle 169 on reader information card means extending through the enclosed forward end of the nozzle body for spraying a relatively even coating of powder coating material into a recess formed in a substrate. Chromate for Zinc, Cadmium, and Alloys Thereof U.S. Paf&5,366,655. Nov. 29, 1994 K.P. Kkx, assignor to A&em Corp., Medina, Ohio and Frederick Gumm Chemical Co. Inc., Keamy, NJ. An improved process for chromating a metal, which comprises immersing an arti- cle consisting of zinc, cadmium, and alloys thereof in a water solution of a soluble chromic oxalate complex at a pH of 1.2-3.0. Selective Metal Electrodeposition Process and Apparatus U.S. Pafent5,366,711. Nov.29, 1994 J. Pods Los Gafos, CaM An apparatus for electrodeposition of a conducting metal onto a semiconductor comprising diffusion barrier deposition means; an electrically conducting nuclea- *Up to 98% reduction of waste volume & disposal costs. ?? Heavy duty plastic construction for superior structural integrity at elevated temperatures. ?? High surface area for maximum performance. *Small footprint due to vertical design. ?? Recovery of valuable dragout chemistry. ?? Engineered mist eliminator. Plating Lines I Seeking represent- Waste Treatment & atives for Select Evaporation Systems Territories - HAMDEN, CT (203) 287.1985. FAX: (203) 268-7354 Circle 154 on wider lnfometion card 156 METAL FINISHING . JUNE 1995

Transcript of Selective metal electrodeposition process and apparatus

Page 1: Selective metal electrodeposition process and apparatus

source to the shroud means; and means for generating a vacuum at the shroud means for recovering abrasive material delivered to the shroud means and material removed from the surface; the improvement com- prising electrical control circuit means including vacuum sensing vacuum respon- sive electrical switch means for sensing an unacceptable vacuum level at the shroud means, and means responsive to the vac- uum sensing switch means for indicating an unacceptable vacuum level.

Parts Cleaning Machine U.S. Patenf 5,369,053. Nov. 29, 1994 KM Won, assignor to Ran&off Co., Hamilton, Ohio

A parts cleaning machine comprising a reservoir; a first tank discrete from the reservoir for containing wash solution; a second tank discrete from the reservoir and the first tank for containing rinse solution; means for transferring wash solution and rinse solution from the reservoir, a basket for holding parts; a first means mounted to the reservoir for moving the basket between loading, cleaning, and draining positions; a

second means for rotating the basket when it is in the cleaning and draining positions; and a plurality of spray means mounted within the reservoir for directing wash solution against the basket.

Cleaning Apparatus U.S. Palent5,367,641. Nov. 29, 1994 M.D. Smith, Concord, N./-I and G.F. bVe/ls, Charlotte, N.C.

A portable containment unit for an abrasive blasting system and process, for preventing escape of grit and contaminated particulate material into the atmosphere.

Powder Coating Spray Gun U.S. Patent5,368,237. Nov. 29, 1994 7X4. Fulkerson, assignor to Nordson Corp., IWake, Ohio

A powder spray nozzle for spraying powder coating material, comprising a nozzle body of electrically nonconductive material having an axial throughbore ex- tending between an enclosed forward end and a rearward end adapted to receive powder coating material; and discharge slot

RM4 0 REMOVES WASTE WATER

CONTAMINANTS

Flocculant Removes: Applications Include: ?? Emulsified Oils

. Heavy Metals

?? Suspended Solids in Waste Water

??- Washdown Water ?? Parts Washer Water ?? Vibratory deburring

& finishing ?? Metal working/coolants

CETCO also manufactures a complete line of treatment equipment for use with the RM-10 chemicals.

COLLOID ENVIRONMENTAL TECHNOLOGIES COMPANY 1350 West Shure Drive ??Arlington Hts., ??IL 6ooo4-1440 ??USA

Tel: (708) 3924800 0 800-527-9948 ??Fax: (708) 506-6150 3” (x ,y*,,, am -‘1,,1*,, ‘&we we 0, wa ?x “** 8%6>” ,, a,“& ~,,aYl%a$Pl,,#lIIF m%mw*,wB*,*l*~l, -i &wU” .iilOl’ iyBl

Circle 169 on reader information card

means extending through the enclosed forward end of the nozzle body for spraying a relatively even coating of powder coating material into a recess formed in a substrate.

Chromate for Zinc, Cadmium, and Alloys Thereof U.S. Paf&5,366,655. Nov. 29, 1994 K.P. Kkx, assignor to A&em Corp., Medina, Ohio and Frederick Gumm Chemical Co. Inc., Keamy, NJ.

An improved process for chromating a metal, which comprises immersing an arti- cle consisting of zinc, cadmium, and alloys thereof in a water solution of a soluble chromic oxalate complex at a pH of 1.2-3.0.

Selective Metal Electrodeposition Process and Apparatus U.S. Pafent5,366,711. Nov. 29, 1994 J. Pods Los Gafos, CaM

An apparatus for electrodeposition of a conducting metal onto a semiconductor comprising diffusion barrier deposition means; an electrically conducting nuclea-

*Up to 98% reduction of waste volume & disposal costs.

??Heavy duty plastic construction for superior structural integrity at elevated temperatures.

??High surface area for maximum performance.

*Small footprint due to vertical design.

??Recovery of valuable dragout chemistry.

??Engineered mist eliminator.

Plating Lines

I

Seeking represent- Waste Treatment & atives for Select Evaporation Systems Territories

- HAMDEN, CT (203) 287.1985. FAX: (203) 268-7354

Circle 154 on wider lnfometion card

156 METAL FINISHING . JUNE 1995

Page 2: Selective metal electrodeposition process and apparatus

tion layer deposition means; inert metal mask means to place a first metal mask layer onto the nucleation layer, selective electrodeposition means; and electrochemi- cal etching means to increase a radius of curvature of edges of the metal, thereby facilitating planarization and decreasing line-to-line capacitance.

System for Controlling Plating Bath Parameters U.S. Pateni5,366,715. Nov. 29, 7994 M. P. Hurley and S. J. Boezzi, assignors to Enthone OMI Inc., wam3n, A&h.

A method of controlling a plating bath comprising calculating a predictive model of the changes in composition of a plating bath as a function of current-time to determine an amount and timing of a predicted replenisher addition for at least one bath constituent; measuring at least one bath parameter indicative of the changes in composition of the plating bath; and calcu- lating an amount and timing of an acutal replenisher addition by modifying the pre- dicted replenisher addition according to the measured bath parameter; wherein the

predictive model is calculated based on changes caused by anode and cathode reactions and changes caused by drag-out.

Electrocoating Control Device U.S. Pafent 5,366,716. Nov. 29, 1994 M. Kikuta, assignor to Kansai Paint Co. Ltd., Hyogo, Japan

A method and apparatus for analyzing and controlling the composition of an electrodeposition coating material.

Metallization of Electronic Insulators U.S. Patenf5,366,717. Nov. 29, 7994 S. GotfesW and F.A. U&e, assipws to The Regenfs of the Universify of CaMornia, Ofice of Technology Transfer, Alameda, Calif.

A method for plating onto an insulating substrate, comprising forming a solution comprising a monomer, an oxidant for the monomer, and a dopant; providing a ratio of [Fe+3]/[Fe+2] effective to maintain a solution oxidation potential within a range of 0.5-0.55 V vs SCE, immersing the insulating substrate in the solution for a time effective to form a conductive poly-

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mer having a sheet resistivity effective for electrodeposition of a selected metal; and electrodepositing the selected metal onto each substrate.

Method for Direct Plating of Iron On Aluminum U.S. Paknt5,366,719. Nov. 29, 1994 S. TropPackman, assignor to Hughes Aircra~? Co., Los Angeles

An iron plating process for plating iron on surfaces of aluminum and aluminum alloy parts, comprising cathodically acti- vating the surface of the part in an acid solution to form an activated surface; and plating on the activated surface a layer of iron from an iron sulfate plating bath.

Electrowinning of Direct Metallization Accelerators U.S. Paknt5,366,716. Nov. 29, 1994 J.B. Conrcd ef al, assignors lo EnthowOM Inc., l&x? Haven, Conn.

A method for regenerating for reuse a post-activator solution used in a process for the direct metallization of nonconductive

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METAL FINISHING . JUNE 1995 157