Electronics Forum | Tue Jul 31 15:33:30 EDT 2007 | gregs110
I have seen a few threads about delamination issues on IS410 laminate in RoHS applications. I have recently been running into a rash of issues on 4 different part numbers with a single PWB source. All the parts have been built fine in the past with
Electronics Forum | Sat Aug 11 05:29:31 EDT 2007 | johnz
We are having a problem with JST connector ICM-MA50H-SS52-1161 LF SN. After reflow oven soldering we have mostly problem with soldering quality for firs or last leg of the connector. (There is no connection- leg just lays-lift on the solder no wicki
Electronics Forum | Mon Aug 13 10:51:14 EDT 2007 | davef
This sounds like sales-type teaser posting, but let's see what we get. When comparing convection to IR BGA rework stations, IR stations perform poorly when: * Evaluation board has no power and ground planes. Worst case PWB as IR energy from bottom h
Electronics Forum | Mon Aug 13 05:39:31 EDT 2007 | saaitk
I am building a double sided SMT board. On the first side I have a 405 ball BGA. When we build and run the second side through our reflow oven on about 25% of the boards run the 405 ball BGA on the underside of the board has fallen off. About 80% of
Electronics Forum | Sun Aug 19 15:34:20 EDT 2007 | davef
What are you trying to do: * Improve hole fill? * Reduce PTH voiding? Hole fill: Search the fine SMTnet Archives for stuff like: http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=36063 PTH voiding: Ideally, there are no voids. We're unawar
Electronics Forum | Thu Aug 23 08:31:09 EDT 2007 | ck_the_flip
Dave, that's good thread, but I think Mike is more concerned with the Titanium inserts that pallet manufacturers often use to overcome sh*tty designs - like the ones where they put a Through-hole 2mm away from a SMT pad. He's not so concerned about t
Electronics Forum | Mon Sep 10 12:27:32 EDT 2007 | hakerem
Hi Dave - You are correct that I was not clear in my comments. I assumed Joris had seen the usual solder balls accompanying his blowholes. Nevertheless, Joris, my first two recommendations still stand. Increasing the dwell time of your leads in t
Electronics Forum | Tue Sep 04 10:37:52 EDT 2007 | slthomas
I could help you with the SET features if I saw them. It's been about 4 years so I don't remember them off the top of my head. What you would do (nutshell) is get your non-rotated insertions dead center, then step through to a rotated insertion until
Electronics Forum | Sun Sep 02 07:55:19 EDT 2007 | lennielly
Hi every one I would like to have some inputs here,I would be very appreciated if you can give your suggestion; Currently we are working on 2 underfilled BGAs with SRT-1800 rework station(hot air type),one is mounted on a single sided PCB whereas the
Electronics Forum | Thu Sep 06 15:36:27 EDT 2007 | kpm135
My company recently aquired an asymtek coating machine and I have been using Humiseal 1B31, an acrylic coating, in it to coat all the boards given to me. They have now come to me and asked if it is possible to run Humiseal 1A33, a urethane coating, t
