Electronics Forum: osp and pcb and solder (Page 2 of 20)

Selective soldering pallets and solder balls

Electronics Forum | Thu Dec 05 11:36:30 EST 2002 | William Guatemala

Have you check the flux gravity lately? If not, Check the flux gravity every 6 hours to make sure proper parameters are meet. Here is a list of things that may cause your solder ball problems; Excecive heat, defective fixtures, preheating temperature

Selective soldering pallets and solder balls

Electronics Forum | Fri Dec 06 18:13:15 EST 2002 | slthomas

We only have solder balling problems in the interface of the pcb with the selective soldering pallet. All other boards (single, and double sided glue and waved alike) are fine, so I'm not thinking this is going to follow the normal path for resoluti

Board change and solder not adhereing completely

Electronics Forum | Fri Apr 06 04:10:25 EDT 2001 | kensmoke

We recently had a multi block panal change at the vendor Now the production lines are producing solderability defects in great number. The makeup of the pcb is a type of fiber glass mask green in color and pads with no tinning just copper lands.

kapton dots and liquid solder mask

Electronics Forum | Tue Aug 09 11:56:01 EDT 2005 | Rob

We sometimes use a peelable mask the the PCB manufacturer (board house) adds as part of their process. It may seem an expensive option but avoids: Raising P/o's for tape/peelable mask as consumables booking & inspection Booking out to the shop floo

Selective soldering pallets and solder balls

Electronics Forum | Mon Dec 16 19:05:57 EST 2002 | davidduke

Steve , I agree with all the responses you have received. Randy Villeneuve is absolutly correct in all of his assesments and I would consider him an expert with the process , Gris is correct about adding a "heat sink" to the process complicating pr

kapton dots and liquid solder mask

Electronics Forum | Wed Aug 10 11:57:16 EDT 2005 | pr

Is the peelable mask (put on by the boardhouse) flat on the surface of the pcb? If so can you tell me the material name, so maybe I can find a picture? We have to print adhesive on the board, so the mask has to be flat. That is why Kapton from the b

link to report on lead free soldering and differnet pcb finishes

Electronics Forum | Sat Dec 24 08:26:41 EST 2005 | GS

Thank you, very intersting. Seen they've experimented also Sn Cu Ni on wave solder. Rgards............GS

link to report on lead free soldering and differnet pcb finishes

Electronics Forum | Fri Dec 23 23:29:17 EST 2005 | azbvc

Slaine, thank you for sharing..

link to report on lead free soldering and differnet pcb finishes

Electronics Forum | Fri Dec 23 06:09:04 EST 2005 | Slaine

good report showing lots of sections and compairng differnet pcb finishes http://www.smartgroup.org/experience/experience%20report%202005.pdf

PB-Free HASL and Leaded Solder

Electronics Forum | Thu May 13 09:52:34 EDT 2021 | winston_one

Want to update this question a little, I know it appears few years ago, but I hope there is some updates... We have to assembly few samples of motherboards with this kind of finish (customer mistake during pcb order). Normally we can use leaded sold


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