Electronics Forum: scs7 manual soldering (Page 1 of 60)

solder ball problem in manual soldering

Electronics Forum | Mon Oct 19 07:39:15 EDT 2009 | m_imtiaz

Hi, We are facing solder ball problem in manual soldering process (between wire and terminal). we are using no-clean solder (63:37)and temperature setting in iron is around 400 Cel. Can any one suggest me how to solve this problem Any thoughts would

solder ball problem in manual soldering

Electronics Forum | Mon Oct 19 15:08:14 EDT 2009 | markhoch

Would be glad to offer some assistance, but I've got a couple of questions first: 1) What type of supplemental flux are you using? (If any) 2) Is your problem consistent across all assemblers, or can you trace the assemblies with solder ball issues b

Thiourea exposure in manual soldering of immersion tin PCBs

Electronics Forum | Sun Jun 01 03:42:49 EDT 2014 | sync40

Hello to everybody in this forum, I would like to know any information that you kindly may have about the following subject: We very often do manual soldering assembly of immersion tin finished PCBs. Since thiourea is used in the formulation of the

Thiourea exposure in manual soldering of immersion tin PCBs

Electronics Forum | Mon Jun 02 15:51:17 EDT 2014 | sync40

Thank you so much again davef for your new reply. This past weekend I was looking for more information regarding this subject, but, as you stated there is no information about thioruea concerns during assembly soldering operations, mainly focused in

Thiourea exposure in manual soldering of immersion tin PCBs

Electronics Forum | Mon Jun 02 15:09:10 EDT 2014 | davef

I've never heard of anyone affected by thiourea during assembly soldering operations. I believe the greatest concern of exposure to thiourea is during the board fabrication process. BR ... davef

Thiourea exposure in manual soldering of immersion tin PCBs

Electronics Forum | Mon Jun 02 20:38:42 EDT 2014 | davef

I believe that you get better responses when you start a new thread, but that's just an opinion, not a rule. BR ... davef

Thiourea exposure in manual soldering of immersion tin PCBs

Electronics Forum | Sun Jun 01 13:50:12 EDT 2014 | sync40

Thank you for your reply davef. Although the US restriction, I think that there are plenty of users of immersion tin in Americas, mainly low-volume fabs that do not plan to outsource finishing, or do not plan or can not invest in a HASL. If we res

Thiourea exposure in manual soldering of immersion tin PCBs

Electronics Forum | Sun Jun 01 13:25:26 EDT 2014 | davef

Eurolanders and Asians are the primary users of immersion tin. In the US, the use of immersion tin is restricted due to the concern over the thiourea that used in tin plating process. Thiourea is a suspected carcinogen. I’m inclined to say, “aww, as

User manual Speedline Vectra 450/F

Electronics Forum | Thu Aug 24 01:01:23 EDT 2023 | frankchan

Is this a wave solder oven mate? Can't help with this one but we too are the manufacturer of Reflow & wave solder ovens and else. If related questions we can discuss about it and try to solve.

manual stencil print 2 passes

Electronics Forum | Tue Dec 23 17:34:07 EST 2008 | davef

We hear you talking two main issues: 1 Solder paste release 2 Thoughts on using two passes of solder paste on the stencil 1 Solder paste release * Check your aperture & aspect ratios [Search the fine SMTnet Archives for more] * Do a better job with

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