Electronics Forum: solder and paste and issues and gold and padas (Page 1 of 1)

Re: CuOSP and IMM Silver versus HASL

Electronics Forum | Thu Aug 31 18:59:55 EDT 2000 | Brian W.

Our customers use OSP, HASL, immersion tin and immersion gold as board finishes. If I recommend a finish to the customer, it is one of the immersion finishes or OSP. Those finishes have the advantage of a flat surface to deposit paste. HASL has va

Gold plated board, with csp's and 0603 with no clean apetures

Electronics Forum | Thu Sep 26 11:44:23 EDT 2002 | abelardo

Hello everyone out there in the SMT world. I have a dilema I'm currently running a board that has 3 csp's with a .75 mm. ball pitch and .3mm ball size. And 2 qfp's-160. The stencil is 4 mils thick and I'm using a 63/37 solder paste. My reflow prof

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