Electronics Forum | Mon Jul 06 11:17:56 EDT 2009 | slthomas
xcopy is probably the cheapest way, although it's a manual operation. We just used a batch (.bat) file called "backup" that ran xcopy on our pcb file directories and dumped the copies to a second hard drive on the same pc. If you can't install seco
Electronics Forum | Fri Jul 13 14:56:01 EDT 2001 | stevenamacdonald
One of our board vendors recently switched their stencil design to home plate apertures. Since the change the quality and yield of their PCB's has went south, Could this process change be the cause?
Electronics Forum | Fri Jul 13 19:08:55 EDT 2001 | mparker
Home plate apertures are designed to reduce or eliminate solder balls that occur when placing a chip and reflow of the solder. This aperture type is usually desired when processing with a "no-clean" solder paste. The design of the aperture is usually
Electronics Forum | Wed Feb 20 18:21:49 EST 2013 | caurbach
A question for all you wave experts out there: We run our wave with a constant flow over the back plate. I know it's recommended that we set the back plate so that the solder sits just at the top of the back plate with surface tension keeping it fr
Electronics Forum | Thu Jun 13 15:33:49 EDT 2002 | john
I opened a two product boxes which are similar and have PCBs. The PCB in one box is gold plated. Can anyone explain why it needs gold plating? Thanks in advance
Electronics Forum | Tue Sep 01 11:05:36 EDT 2009 | saisungold
We gold plated PCB and while soldering, the adhesion of soldering is not uniform at the tips(soldering ends). Please help us to solve the problem.
Electronics Forum | Sun Sep 15 21:44:41 EDT 2002 | jason
Hi Dave, Immersion Ag has poor surface appearances after reflow or rather tarnished, while Immersion Tin requries higher temp. Probably that's why Immersion Ag is more preferred.
Electronics Forum | Fri Jul 28 19:55:31 EDT 2006 | scott
I would agree for a bare board house, are you NUTS? Look what happend to McCurdey's high tech line in S. Cal., go chewed up and spit out by China... Plating, etching, environmental issues, regulations, lack of people who like doing that work... endle
Electronics Forum | Thu Sep 10 15:06:11 EDT 2009 | dyoungquist
My guess is that he is talking about the gold plated pads not fully wetting with solder. We have seen this on some of our ENIG boards with the gold still showing at the far corners of the rectangular pads. Not knowing if this is hand soldering or p
Electronics Forum | Fri Jun 14 14:30:36 EDT 2002 | davef
Assuming you are talking about solderable surfaces: People specify various materials to protect the solderability of the pads on the board. Gold, actually, Electroless Nickel - Immersion Gold [ENIG], is popular. * Board fabricators like it because
Products, services, training & consulting for the assembly, rework & repair of electronic assemblies. BGA process experts. Manufacturers Rep, Distributor & Service Provider for Seamark/Zhuomao and Shuttle Star BGA Rework Stations.
Training Provider / Manufacturer's Representative / Equipment Dealer / Broker / Auctions / Consultant / Service Provider
1750 Mitchell Ave.
Oroville, CA USA
Phone: (888) 406-2830
