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tarnishing gold surfaces

2017/2/2 16:07:11

subject board fabrication calls for .05 -.125um of gold over 2 - 5 um of nickel. When doing double sided reflow using same profile, parts of the gold are tarnishing and causing test pad failures. any ideas as to the cause?

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Pedro Skou

2017/2/4 16:07:11

Really appreciate your content.I hope you write again soon.

Henri Aroyan

2017/2/4 16:07:11

Pretty good and useful info to my job. Keep on checking your post.

jarmoblo

2017/2/4 16:07:11

Remarkable.It help me a lot. Thank you.

Andras Hollenczer

2017/2/4 16:07:11

Useful!

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