Electronics Forum: removing tarnish from immersion tin (Page 1 of 3)

Lead Free ...

Electronics Forum | Thu Sep 02 14:02:49 EDT 2004 | russ

Frank, We are currently running lead free for approximately 1 yr. now but no where near the volumes you have mentioned. We are about 5k units per month. I personally am in agreement with you as far as OSP. I also do not like white tin finish since

Re: Wave solder edge covers

Electronics Forum | Wed Jun 30 12:14:40 EDT 1999 | John Thorup

| | We are wave soldering some fabs with a lot of unmasked trace area along the edges. The trace area is solid copper covered with tin / lead, no masking, no components along the edges, same on solder side and component side (goofy board design). I

Pad finish

Electronics Forum | Thu Oct 07 08:13:52 EDT 2010 | remullis

I just swapped from the HASL to Immersion Silver mainly because the board house we use could not maintain consistency in keeping the pads level. I was constantly battling bumps and bad finishes on the pads. They are able to give me a consistent board

Re: Wave solder edge covers

Electronics Forum | Fri Jul 02 05:28:13 EDT 1999 | Vinesh gandhi

| | | We are wave soldering some fabs with a lot of unmasked trace area along the edges. The trace area is solid copper covered with tin / lead, no masking, no components along the edges, same on solder side and component side (goofy board design).

Re: Wave solder edge covers

Electronics Forum | Fri Jul 02 09:54:02 EDT 1999 | John Thorup

| | | | We are wave soldering some fabs with a lot of unmasked trace area along the edges. The trace area is solid copper covered with tin / lead, no masking, no components along the edges, same on solder side and component side (goofy board design)

Re: Wave solder edge covers

Electronics Forum | Fri Jul 02 10:06:17 EDT 1999 | John Thorup

| | | | We are wave soldering some fabs with a lot of unmasked trace area along the edges. The trace area is solid copper covered with tin / lead, no masking, no components along the edges, same on solder side and component side (goofy board design)

Re: OA core solder stranded wires

Electronics Forum | Tue Jan 05 18:07:53 EST 1999 | Dave F

| I am looking for information regarding post wave soldering of stranded wires into a circuit board using OA core wire solder. We do a final pass thru the cleaner after the hand soldering but I'm concerned about any OA flux residue that may have wic

Re: REFLOWING WHITE TIN PLATED PADS

Electronics Forum | Wed Aug 18 12:35:41 EDT 1999 | Earl Moon

| | WE ARE CURRENTLY HAVING PROBLEMS REFLOWING BOARDS WITH WHITE TIN PLATING. WE ARE NOT GETTING GOOD WETTING ON THE PADS. | | WE HAVE CHECKED THE REFLOW PROFILE AND TRIED DIFFERENT PASTE'S. | | WE THINK THERE MAY BE CONTAMINATION OR OXIDATION ON THE

Re: Dross/Oxide problems with wave soldering machine

Electronics Forum | Mon Jan 31 12:24:24 EST 2000 | Dave F

Robert: Several points: 1 Dross is a mixture of various things with no "fixed" composition: � The obvious things are metal oxides mixed with metal and this can vary in color with temperature and composition - remember some intermetallic oxides form

Re: Solderability on Immersion Gold

Electronics Forum | Thu Mar 02 16:06:32 EST 2000 | eLDON sANDERS

Gentlemen, I too have been atacked by that "soldering to gold" and will add my 2 cents. I also had parts that would pop off the board when the fillet looked perfect. After lots of pain, experimentation, and sleepless nights, I solved it through a

  1 2 3 Next

removing tarnish from immersion tin searches for Companies, Equipment, Machines, Suppliers & Information