Electronics Forum | Fri Apr 18 14:25:51 EDT 2014 | horchak
what is the technology? Is there fine pitch, double sided, number of layers, lead free? If the pcbs are not of the highest quality you may be set up for failure with no clean process. Couple things to look at is your paste flux content versus medal
Electronics Forum | Fri Feb 17 17:41:23 EST 2023 | SMTA-71549289
We have a legacy Pillarhouse Jade and am not sure how long we can expect a nozzle to last. We're new to using selective solder and we have things going, but there are some details like this where we just don't know what a reasonable expectation can b
Electronics Forum | Fri Aug 25 07:38:12 EDT 2006 | CL
Hi CP, I used to work for a flex circuit manufacturer. I am at a CM now and am we have started building RoHS production status assemblies. I personally think flex circuits will have a difficult time with the required temps for RoHS. I spoke to someo
Electronics Forum | Tue Dec 15 12:23:47 EST 2009 | swag
I have moved golden boards from chains to mesh as I got tired of fishing t-couples under the chain rail. I saw a 3-5 deg. decrease on top-side parts peak temp. (all t-couples were on top side). I had to bump zones 6 and 7 a few degrees to make up f
Electronics Forum | Thu Nov 02 15:46:43 EST 2006 | rgduval
I'm looking for some information on soldering irons being used in my no-lead process. Specifically, my floor seem to be burning out tips at an alarming rate, when soldering lead-free assemblies. Today, I had one woman burn out a brand new tip in 4
Electronics Forum | Sat Jul 03 00:58:57 EDT 2004 | KEN
so what did we do before X-ray? sound process shouldn't need to rely on inspection. Extended soaks can be used to burn off high temp volatiles but I have never heard of 5 minutes! I have used 90-120 sec. to reduce solder splatter....but haven't do
Electronics Forum | Mon Apr 23 09:37:20 EDT 2007 | davepick
Assuming you are going to build using a Leaded part on a Lead Free Process - beware of Weak Joints. I saw this at a large Multinational company - They had secondary reflow on a Top Side QFP when the PCB went over the wave. We did pull strength tests
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Electronics Forum | Thu Dec 17 10:04:28 EST 1998 | Chrys
Necessity is the mother of invention... The other day I loaned my last bit of high-temp solder to a co-op and never saw it again. Then I had to run a profile and I was in a pickle with no solder. So I ran out to the local Radio Shack to see if the
Electronics Forum | Tue Jun 26 15:28:01 EDT 2007 | hegemon
There are a lot of variables in BGA rework in general, and the switch to lead free has only magnified some of the sore spots. Perhaps with a little bit more information someone here can be of help. What is the size and thickness of the PCB? What
