Electronics Forum | Thu Aug 22 16:25:18 EDT 2019 | scotceltic
Yes, unfortunately a lot of datasheets these days do not contain the temperature resistance to determine if it can handle the PIP application. In the past I have always used a 250 C at a min of 5 sec for the material. Also, the part should have sta
Electronics Forum | Fri Jul 16 11:29:59 EDT 1999 | John Sims
We are considering adding surface mount components to a board we currently produce. The board is made from CEM-1. Has anyone had any problems with surface mounting to this material? We use a glue/place/cure process. Thanks in advance, John Sims
Electronics Forum | Thu Aug 31 18:59:55 EDT 2000 | Brian W.
Our customers use OSP, HASL, immersion tin and immersion gold as board finishes. If I recommend a finish to the customer, it is one of the immersion finishes or OSP. Those finishes have the advantage of a flat surface to deposit paste. HASL has va
Electronics Forum | Thu Jan 24 09:53:56 EST 2002 | davef
You didn�t tell us about your solder, wave temperature profile, or the distribution of the problem. So, let�s assume the solder is near eutectic and the problem is wide spread. Wolfgang makes good points. So, let's talk a different tact. When we
Electronics Forum | Thu Aug 01 12:55:41 EDT 2002 | johnw
we run the paste in both air and n2 depending on customer requirements again it run's fairly well in both. Some people say it's better sme say it doesn't make a bit of difference, I'm somewhere in between at the moment. I definately think there's imp
Electronics Forum | Thu Dec 05 11:04:27 EST 2002 | slthomas
They're IR, bottom side only. Frankly wave solder is not my forte (there are those that would claim nothing is), but I've personally been tasked with developing a process to do reliable, high volume bottom side SMT, so I'm drawing a lot from the tec
Electronics Forum | Tue Feb 14 22:48:06 EST 2006 | Cal Kolokoy
That is a tough situation and a tough answer for us SMT forum participants. After all, most of us are in the business of placing and soldering components to circuit boards, and you know the saying; you can't make solder joints with an unsolderable su
Electronics Forum | Fri Jul 06 13:44:15 EDT 2007 | shrek
Krikies! seems like a head-scratcher if I may say so me-self. I would say the other ogre is right, that surface finish will play a big factor in your solder joint's grain structure or how shiney 'tis. Non-HASL bearing finishes will typicaly exhibit
Electronics Forum | Mon Mar 30 11:02:37 EDT 2020 | SMTA-Eric
As we navigate through the CORVID-19 pandemic, many essential manufacturing facilities are still on line and operating. Some at reduced or modified schedules in following the guidelines to help reduce the spread of this virus. My question is in rega
Electronics Forum | Fri Apr 03 10:29:29 EDT 2020 | stephendo
Time. The virus does not last a very long time on surfaces. Not sure how long but I read that it does not live long on copper but does last on stainless steel. As far as I know the virus lives as well on gloves as it does on hands. So you still have
The SMTA membership is a network of professionals who build skills, share practical experience and develop solutions in electronic assembly technologies and related business operations.
Training Provider / Events Organizer / Association / Non-Profit
6600 City W Pkwy
Eden Prairie, MN USA
Phone: 952-920-7682
.png)
