HOME FAQs BOOKS JOBS: Help Wanted Suggestions you are here: Hotline/Forum => Letter 31014

Multi plating of Kovar for soldering

++++

One of our customers is requesting a change in plating to a Kovar strip which is soldered to a silicon solar cell. They have ask for Nickel strike 0.00003", then Copper plate to 0.00005 to 0.00015 thick, followed by a silver plate, type I, grade B to 0.00008 to 0.00012. Finally a solder plate 0.0002 to 0.0003 which is then fused. Does anyone have experience of this sequence of plating, with the advantages and dis-advantages?

Thanks in advance.

John Hughes
electronics - Hawthorne, California, USA

++++

Advantages and disadvantages compared to what, John? You didn't say what you presently have experience in. I'm not a solder expert, but the step where you solder plate on top of the silver silver doesn't sound right to me, and all of the layers sound a bit thin.

Ted Mooney, P.E.
finishing.com
Brick, New Jersey

ANSWER or FOLLOW UP POST an unrelated QUESTION HOT Topics

Disclaimer: It is not possible to 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; some names may be fictitious and some recommendations may be deliberately harmful.

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