Electronics Forum | Thu Dec 20 07:50:12 EST 2007 | realchunks
Good to know there are a few smart people left in this industry like Darby. I love how everyone assumes the original poster was only talking solder paste. We use screen printers for five different materials. Some of which we triple print by design
Electronics Forum | Fri Aug 21 04:37:26 EDT 2009 | grahamcooper22
Manufacturers of non hermetic SMT components have to test their devices as per IPC JEDEC 20C to check their reflow and moisture sensitivity. In this spec they pass them through reflow 3 times, then check them for damage and retest their performance.
Electronics Forum | Fri Jun 29 12:47:25 EDT 2012 | deanm
We are experiencing widely varying First Pass Yields for selective soldering. Some boards are near 100% while others are less than 50% depending on the pitch and general complexity of the board. Question: If you are running 100 boards through your s
Electronics Forum | Sat Oct 25 13:36:39 EDT 2014 | sonavc
Hi everyone, hope you can help me with this machine I bought used and after it is set up , it runs good, home position. I can click the tab Start, and Setup. But I can't click the tab I/O , edit or system. Because, I think I can't log in the Level
Electronics Forum | Wed Dec 08 20:00:56 EST 2021 | scotceltic
Throughout the years in SMT PCBA production I have seen OEM's and contract houses move away from a Double-Sided PCBA Line setup. Ex Single pass for bottom-side and then straight into duplicate equipment for top-side. The norm these days seems to be
Electronics Forum | Tue Apr 27 09:31:45 EDT 1999 | Robert L. McCallum
On circuit board assemblies first pass yields need to be above 98%, if a supplier is below this level it is a indication that: he has poor control of the manufacturing process; Poor component selection (price over quality; excepted a poor design from
Electronics Forum | Thu Jan 03 03:55:29 EST 2002 | Hany_khoga
Thanks Dave , but what is meant by Tg & MLB ? Hany
Electronics Forum | Wed Oct 23 14:44:58 EDT 2002 | mzaboogie
Hi Ben, IPC610 has a pass/fail of 25% of ball volume. Hope this helps
Electronics Forum | Wed May 05 15:29:39 EDT 2004 | SWagner
The GSI will pass gage R&R if you purchase the optional 2x scan head for the 0201;s.
Electronics Forum | Thu Apr 14 18:28:20 EDT 2005 | darby
We use the standard supports that come with the machine. Print a 1:1 transparency of the first pass side of the pcb including mechanical outline and components. Your customer may need to supply this. Flip this over and tape it into position at th
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