No cost, no registration, no passwords -- just aloha, fun & authoritative answers
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Where the
world gathers for metal finishing
Q&As since 1989

-----

Copper is still exposed after solder plating

I want to know the meaning of an exposed copper after solder plating? The cause and effect also.

Cheryl Blanca P. Acain
electronics mfgr - Calamba, Laguna, Philippines
2004

Cheryl, I believe your company is plating tin-lead on semiconductor devices. Exposed copper after solder plating means that there is non-removed contaminant on top of copper layer that prevents the adhesion of tin-lead during plating. Good base metal preparation is very important. With exposed copper you may encounter solderability problem.

Germie Maravilla
- San Pedro, Laguna, Philippines
2005

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: