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North America's Leading Experts in Final Finishes, Via Fills, Acid and Electroless Coppers, Immersion Silver and Tin; also MEC Surface Treatments and Auruna Gold Electrolytes. Corporate Headquarters: 3990 Concours, #425 • Ontario, CA 91764 • ph: (909) 466-5635 Tech Center: 240 Town Line Road • Southington, CT 06489 • ph: (860) 793-4011 UYEMURA.COM Uyemura Delivers… Meet the new IPC spec… with zero corrosion. Deposit thick (or thin) gold in ENEPIG…also with zero corrosion. Only TWX-40 reduction-assisted bath delivers immersion and autocatalytic modes of deposition – your best assurance of a corrosion-free result. Plus: users of Uyemura ENIG and ENEPIG have the widest range for gold deposits: from 4 to 6 in – and higher – in one step. Use TWX-40 with Talon to deposit electroless / autocatalytic palladium for a surface finish that's solderable and aluminum /gold wire bondable. Uyemura's TWX-40 "RAIG" (Reduction-Assisted Immersion Gold) process was developed for OEMs and board shops that require an immersion gold deposit significantly greater than the minimum values required by the ENIG or ENEPIG specifications.

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