Electroless Nickel Composite Coatings Wear-Cote International Inc. Rock Island, III.

E]ectroless nickel fluorocarbon composite coatings (EN/CF 0 provide a self-replenishing layer of hard, low coefficient of friction submicron particles in an electro- less nickel matrix. Wear-Cote Plus CF~ is an electroless composite incorporating electroless nickel and exclusive submicron particles exhibiting excellent coefficient of friction and wear resistance properties.

Circle 109 on reader information card

Electroless Nickel Processes for Disks and Circuit Boards Uyemura /ntemationa/ Corp. Ontario, Calif.

Uyemura International Corp. (UIC) offers several high-quality electroless nickel systems. Nimuden HDX is a process developed for electroless nickel plating on high-density computer hard disk substrates. UIC also offers the Nimuden SX process for general metal finish- ing and plating of printed circuit boards for surface mount applications, Nimuden NPR-4 is recommended when fine line circuitry is produced (less than 3 mils lines and spaces). Special additives in the Nimuden NPR-4 effectively eliminate bridging problems that may be encountered with other systems.

Circle 112 on reader information card

Electroless Nickel for Aluminum Pads Technic Inc. Cranston, R.I.

Techni EN 9196 is Technic's latest electroless nickel process for the manufacturing of nickel bumps on alu- minum-coated pads. It is used in conjunction with spe- cial cleaning and activation cycles to produce immersion gold (Oromerse MN) and coated nickel-gold bumps (Oromerse SO) on silicon and gallium-arsenide wafers.

Eiectroless Nicke l - Gold

FLIPCHIP BUMP M E T A L L U R G Y

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[_~ Gold

[] R~sist

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~,~I Aluminum

m[ Silicon Dioxid~

Circle 110 on reader information card

Electroless NickeI-PTFE Composite Coating Atotech USA Inc. Rock Hill, S.C.

Niflor is a protective coating for metal and metal alloys, with submicron-size PTFE particles built into autocatalytically deposited nickel phosphorus. Its surface has excellent dry sliding properties and a low friction coefficient, k is uniform, extremely hard, and wear resistant. Nitlor is a genuine disper- sion coating, with an even distribution of the BIFE in the nickel-phosphorus ma~ix. Wear of the surface exposes new PTFE particles, thus maintaining the lubricating properties during the entire lifetime.

Circle 111 on reader information card

Concentrates for Electroless Nickel Plating Surface Technology Inc. Trenton, N.J.

Surface Technology Inc.'s eleclroless nickel solutions are a proprietary chemistry for all varieties of electroless nickel, specializing in economical Addplate concentrates for all elec- troless nickel baths, pretreatment commodities, technical sup- port, and licensing. The company's composite electroless coat- ings are composite silicon carbide and composite diamond coatings for exceptional wear, abrasion, impact and corrosion resistance, and hardness. Also available are composite PTFE and NiSLIP (high-temperature-resistant coatings that surpass PTFE) for lubricity, wear resistance, and release properties.

Circle 113 on reader information card

METAL FINISHING • MARCH 1997 29