No passwords, no registration, no paywalls, no popups, no AI

As an Amazon Associate & eBay Partner we earn from affil links

finishing.com -- The Home Page of the Finishing Industry

Search our quarter-million Q&As

Home of the finishing HOTLINE since 1989

-----

Oxidation on cu plated lead frame

2004

Dear sir.

I would like to seek some advice:

We are Lead frame Plating Manufacturer for Semicon IC. We are facing on/off oxidation on cu plated material usually happen after FLT (Functional Line Test) Baking. This problem occurs after our process conversion.

Usually for A42 (Alloy) base material we are using HCl acid, Cu base material we using H2SO4 acid.

QUESTION:

Does HCl cause oxidation on Cu material?

Any possible cause by process conversion?

Problem always happen why A42 (Alloy) process conversion to Cu process.

Any others possibility cause?

Thanks. Have a good day

EDDIE LEONG LEONG
- KUALA LUMPUR, SELANGOR, MALAYSIA

Sorry! Finishing.com is temporarily Read-Only.
Ted Mooney is retiring but I have several offers to take it over.
We're working hard to make sure we find it the best new home.

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: