Electronics Forum: nickle (Page 1 of 9)

Soldering to nickle plated kovar parts

Electronics Forum | Tue Mar 09 21:17:10 EST 2004 | gm05688

When soldering a metalized germanimum window to a nickle plated kovar part, I would like to understand the intermetalic. Does the nickle plate actually melt or will the solder(SN63)simple stick to the nickle and not cause nickle to reflow? Any one ou

Soldering to nickle plated kovar parts

Electronics Forum | Tue Mar 09 22:26:17 EST 2004 | davef

You should to be soldering to the nickel. The intermetallic is Ni3Sn4. "At relatively low temperatures, the tin-nickel layers form about as rapidly as the tin-copper layers do, but at higher temperatures their growth rate is distinctly lower. At 10

force between the pad and laminate material

Electronics Forum | Thu Jun 20 03:15:22 EDT 2002 | Paul

I've seen a problem recently where there was 2 deposits of Nickle then Gold, The problem is the Nickle will not adhere to Nickle, see if you can scrape the pad away with a scalpel.

Nickle plating for SS Metal switch...

Electronics Forum | Thu Dec 18 17:10:01 EST 1997 | Tom Volker

I am designing an SMT pad for a ss metal switch. Finished copper thickness is .0014 and nickle-plating originally is 150 millionths. Initial testing yields 100,000 to 150,000 switches before intermitent failures (copper is reached.) I want 500,000

Wetting problem of PCB after reflow soldering

Electronics Forum | Mon Sep 17 02:56:40 EDT 2001 | mugen

Hi, (me been absent for some time...) Are your brds confirmed HAL over copper? (check out what Dave F mentioned abt possible root causes) or are the brds HAL over nickle? (shd be no problem here, if so?) or are the brds strictly nickle plated pads?

Sucoplate Vs. Nickle Plating

Electronics Forum | Wed Sep 12 16:15:28 EDT 2007 | rpadilla

Does anyone have Data/Comparisons showing which component plating is better, Nickle plating vs. Sucoplate for SMT production? These components would be reflowed with a SAC305 alloy

tarnishing gold surfaces

Electronics Forum | Thu Nov 11 15:55:53 EST 2010 | davef

We guess the nickle has a rougher that normal finish AND the gold is at or below your specification. The nickle bumps are poking through the gold and are oxidized, preventing contact with you ATE probes. If this is correct, it would be interesting

Solderability

Electronics Forum | Mon Oct 31 09:35:59 EST 2005 | Slaine

Hi as this has a gold flash the nickle should be active an not require strong fluxes, i would suggest either your not getting enough heat into it (unlikely if your seeing dewetting). or that you have a plating problem the nickle has oxidised before

Re: Nickle plating for SS Metal switch...

Electronics Forum | Mon Dec 22 16:09:02 EST 1997 | Justin Medernach

| I am designing an SMT pad for a ss metal switch. | Finished copper thickness is .0014 and nickle-plating | originally is 150 millionths. Initial testing yields 100,000 to 150,000 switches before intermitent failures (copper is reached.) I want 50

chemical etching

Electronics Forum | Wed Oct 16 01:28:45 EDT 2002 | redmary

during the failure analysis, how to etch the tin,nickle,and copper?

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