Electronics Forum: component and lead and oxidisation (Page 1 of 16)

lead free platings and tin lead

Electronics Forum | Tue Aug 31 11:57:03 EDT 2004 | Kris

Hi Any body have any issues soldering tin lead solder paste with lead free terminations ? Components are leaded devices and chip components have read the theoritical discussions on the forum, need to know if any body has seen any real issues tod

lead free platings and tin lead

Electronics Forum | Tue Aug 31 21:45:49 EDT 2004 | KEN

I have experienced this directly in SMT and wave solder. Fillet lift (can) be a direct indicator to lead enrichment (but its not the exclusive symptom). Lead enrichment in smt joints reduces the interfacial strength shortening the time to creep f

lead free platings and tin lead

Electronics Forum | Tue Aug 31 17:36:36 EDT 2004 | davef

NO-LEAD COMPONENTS WITH LEAD SOLDER ISSUE: We agree with Russ. We've dicussed this several times on SMTnet. For instance, look here http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=25394 LEAD COMPONENTS WITH NO-LEAD SOLDER ISSUE: We disa

Heat guns and component damage

Electronics Forum | Tue Jan 31 13:41:12 EST 2006 | outgasser

We are currently experiencing problems with delamination during rework/2nd op activity on lead free. I am suspecting this is a result of the use of a heat gun to rework components. My assumption is that the high heat and time in area greatly increa

PCB and component handling guidelines

Electronics Forum | Fri Feb 18 09:41:44 EST 2000 | James Lewis

Has anyone seen or put together a good collection of proper handling procedures for components and PCB's? I realize a lot of it is no-brainer stuff, but I need some depth for a training class we are putting together. This would include ESD, Moisture

PCB and component handling guidelines

Electronics Forum | Fri Feb 18 09:41:44 EST 2000 | James Lewis

Has anyone seen or put together a good collection of proper handling procedures for components and PCB's? I realize a lot of it is no-brainer stuff, but I need some depth for a training class we are putting together. This would include ESD, Moisture

Solder climbs on the lead and touches the body of the component

Electronics Forum | Mon May 12 12:58:07 EDT 2014 | emeto

Hello all, I have a diode(gold plated)on some assemblies that gives me a a hard time. The paste is wetting too good and climbs the lead of the component and touches the body which is a defect. I just wonder what if there is a way to heat the board e

Solder climbs on the lead and touches the body of the component

Electronics Forum | Mon May 12 14:49:28 EDT 2014 | davef

Hi Evtimov 'hege gave you a plausible explanation for what's going on with solder running-up the lead of your components: TOO MUCH METAL!!! I've got different one. This explanation goes along the way that you're thinking, but just opposite. The rea

Solder climbs on the lead and touches the body of the component

Electronics Forum | Mon May 12 15:13:29 EDT 2014 | emeto

Thank you guys. As we are speaking I keep examine the problem and here is what I got so far. 1. I measured the temperatures on my profile and the lead is hotter than the board. The lead goes 12 seconds earlier than the pad and is taking the solder.

Solder climbs on the lead and touches the body of the component

Electronics Forum | Wed May 14 18:22:07 EDT 2014 | hegemon

Dave is touching on one of those magical things that keeps us process engineers well paid and dancing (Well, some of us, lol). Heavy boards with light components. Solder Follows heat. Component heat up earlier. Repeat, Solder follows the heat. Care

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