Electronics Forum | Wed Nov 15 09:36:27 EST 2006 | Board House
Hi AJ, The biggest mistake in the industry today is documentation for lead free assembly required product. We are still seeing prints coming in saying Lead Free / High TG FR4. When in reality standard FR4 170 Tg. material is considered High Tg. and L
Electronics Forum | Mon Apr 14 17:38:18 EDT 2014 | bradlevy
I've got a small smt board I've already got working prototypes of, which uses a tactile switch. I've got another much less expensive tact switch of similar size that I had avoided due to a difference in actuators I originally had no way around. Now I
Electronics Forum | Tue Aug 22 13:05:32 EDT 2006 | Board House
Hi CP, From a PCB manufacturing side, all of our product is Lead free / RoHs compliant if it has a surface finish other than Hot Air. To be ROHS compliant and Able to with stand Lead Free Assembly, this is where the board house would need to switch
Electronics Forum | Thu May 20 07:52:36 EDT 2010 | rgduval
In general, cleaning with deionized water is acceptable for most component. Open switches and contacts, in general, do not get damaged in this process. A good drying is required, of course, after washing. However, you've described dewetting issues
Electronics Forum | Fri Feb 23 10:10:32 EST 2024 | emanuel
Well, the story is a little more complicated. The product is also an LED lamp made on an aluminum PCB with the LEDs on one side and the drivers on the other. The board itself is not big, about 90x90mm and most of the components are soldering well. Us
Electronics Forum | Tue Nov 05 18:17:00 EST 2002 | russ
This sounds like a contamination issue with the HASL finish.(solder on lead but not on pad). I have experienced this before and it was related to the HASL process at our supplier. They found some type of contaminate in the bath (unfortunately I can
Electronics Forum | Mon Dec 04 22:04:42 EST 2006 | KEN
1. Customers want simultainous manufacturing of PB and PB free assemblies but don't want to pay for separate toolng. 2. Customers wants PB free boards and doesn't understand lead parts can not go in the wave. Then gripe about missed shipping date
Electronics Forum | Fri Feb 20 09:41:11 EST 1998 | Chrys Shea
| I have been involved in SMT for only a few months so I am coming from a position of extreame ignorance. I have been asked to investigate the differences in soldering to components with Paladium coated leads vs the standard Tin_lead. I would appre
Electronics Forum | Sat Jan 29 13:06:18 EST 2000 | Graham Naisbitt
Todd, All liquid coatings are Newtonian - they follow gravity so they do indeed run away from sharp leads and edges. Silicones are generally worse because they have very low surface energy - although this is an asset when trying to get under compone
Electronics Forum | Tue Apr 12 08:25:43 EDT 2005 | davef
Q1 Can anyone explain to me what is the clean and non clean solder? A1 The trend away from CFCs has lead many users to evaluate switching to no-clean soldering processes. The term "no-clean" is actually a common misnomer when used to describe a flux
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