PCB Finishes

“Powered by science, focused on customers.”
We are dedicated to providing exceptional,
problem-solving finishing technology solutions,
including PCB finishes, ENIG, ENEPIG, immersion
silver, lead and cad-free EN, black finishes, and
much more. Our mission is to give customers in
every sector a defined and significant advantage
in performance, cost and technical support.

Uyemura USA is best known for our work in the development
of PCB finishes. We are the world leader in electroless nickel/ immersion gold
systems (“KAT”) as well as electroless golds, including AuBel and TMX, which offer
an exceptional alternative for semiconductor packaging. Also significant are
Uyemura immersion silver (RGA) and immersion tins (RMK).

Our revolutionary acid copper chemistries quickly gained wide acceptance for their
ability to streamline maintenance costs. We supply the world-leading electrolytic (Auruna)
golds from Umicore-GT, and industry-leading copper etchants from MEC.

Other markets, as diverse as apparel, food equipment, automotive and medical device
manufacturing, use Uyemura technologies to distinguish their products, gain market share –
or reduce product liability. The stunning success of Uyemura satin nickels in the automotive
sector and elsewhere established a basis for other Uyemura technologies, including lead
and cad-free chemistries, Nickstar decorative black nickel, and most recently, an
electroless nickel plating for aluminum that provides unmatched adhesion characteristics.

Uyemura is all about the science of finishing performance. We think it says much
about our priorities that we have twice as many technical support professionals . . .
as sales staff. Uyemura customers are among the most demanding in the world,
and there are substantive reasons why so many Uyemura customers have been
customers for so long.

At Uyemura, our lifework is the development, and continuous improvement,
of chemistries and equipment that enhance the performance, productivity and
profitability of the companies we serve. We do it with great enthusiasm,
by providing products that are safe, environmentally favorable and cost-effective –
and supported by the finest technical service personnel in our industry.

Uyemura PCB finishes include electroless nickel / immersion gold systems,
acid copper chemistries, copper etchants, immersion silver,
immersion tin, and lead and cad-free chemistries.

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 is the world leader in PCB finishes, ENIG, ENEPIG, automotive finishes, and general metal finishing systems