Electronics Forum | Thu Sep 15 02:51:45 EDT 2005 | Joris Groot Koerkamp
In our current process we don't need to dry our pcb's. We use FR4 HASL boards. For the leadfree process we want to use NickelGold plated boards. Do we have to dry these boards for the leadfree process or can we just seal them with silica gel?
Electronics Forum | Thu Sep 15 08:33:14 EDT 2005 | pjc
Is not a problem, I've done it. Be sure the insertion tooling and cut&clinch tooling are set to proper distances from the board. If proper, no deflection of PCBA should be observered during AI. Obviously, your AI Operator must be more careful with PC
Electronics Forum | Thu Sep 15 10:00:28 EDT 2005 | slthomas
I'm curious about one thing. What kind of components are on the bottom, how many are there, and how are you processing (in particular how do you get glue and paste on) them? Edited to add: You shouldn't have any problems (assuming your tooling heigh
Electronics Forum | Sun Apr 23 09:07:42 EDT 2006 | kanna
i have one problem here with BTU TRS-14. we encounter Over temperature Alarm trigger when run lead free product. our profiling peak temp is 230 degree's and the temperature set point at zone 4 top/bottom is 260 degree's. can any help on this issue
Electronics Forum | Fri Sep 23 09:14:47 EDT 2005 | Base
Hey Rob, I've seen operators splicing large tapes not just by sticking them together with a piece of splicing-tape, but additionally they overlap the tapes and (forcefully) insert the last pocket of the leaving reel into the first (empty) pocket of
Electronics Forum | Thu Sep 22 06:12:05 EDT 2005 | gavinscott
Hi All, I have been tasked with a project on the control of moisture sensitive devices and I was hoping to get some input from the experts out there... How do you monitor total exposure time for a MSD? If the packaging has been opened and re-sealed a
Electronics Forum | Thu Sep 22 07:13:34 EDT 2005 | davef
You need to account for the time and exposure of each MSD component during your production processes. * Barcodes * Software * Procedures * Training * Etc Francois Monettet [fmonette at cogiscan.com ] at Cogniscan [ cogiscan.com ] is a frequent contr
Electronics Forum | Tue Oct 04 09:05:25 EDT 2005 | scotceltic
There is a system out there called Humitel from Brock Electronics. I havn't used it but saw it at Apex. You may want to call them to find out more about it. From what I know they have a sensor that attaches to the tray or reel that will constantly
Electronics Forum | Thu Sep 22 18:23:14 EDT 2005 | arnie
Hi, I am having a problem with component position on a flex circuit. It is an eight up panel. The flex circuit is mounted on to a piece of fr4 with presure sensitive adhiesive, this is done out of house. The problem is, I will locate the parts on one
Electronics Forum | Tue Sep 27 16:55:32 EDT 2005 | scombs
Does anyone one have any suggestions on what containers to use to put the solder (lead) into? We used aluminum bread pans last time since we wanted to reuse the solder and that was not such a hot idea. It took forever to tear the pans apart to get th
