Electronics Forum | Thu Apr 07 09:24:47 EDT 2011 | rway
What version of sw are you running? There are some new features in 2.7.7 and earlier that may be of benefit to you. With chip caps you are testing for presense/absense. The gain/offset feature can be used to give you better contrast between the pa
Electronics Forum | Fri Apr 15 11:14:13 EDT 2011 | smtmax
Hi. I've been looking for SMT machines and have > a budget close to 100k total on a stencil > printer, p&p + feeders and reflow owen. Witch > machines would you choose with this budget? Have > any one of you heard of evest? _a class=roll > href
Electronics Forum | Fri Apr 15 13:25:40 EDT 2011 | tsvetan
agree, if you have fine pitch components the placement rate will be much less of what you see in the catalogues as they quote 0805 components placemen rate. I have one year log for one of our machine which is quoted to be 6400 cps and for one year a
Electronics Forum | Fri May 13 14:08:39 EDT 2011 | eezday
This appears to be black-pad and is often the result of using specs that call for gold plating that is too thick. The black pad is corrosion that is created between the gold and electroless nickel during the gold plating process. This is counter in
Electronics Forum | Mon May 09 16:44:33 EDT 2011 | dcell_1t
Hi, We have been struggling with an issue of non wetting on a QFP (Renesas - 256, Sn90Pb10) but the issue "desapears" sometimes for a while and then back again suddenly. This is the scenario: Component: QFP 256 / Renesas / Sn90Pb10 / 0.5 mm pitch S
Electronics Forum | Thu May 12 13:09:58 EDT 2011 | tombstonesmt
This is just an example of what we do at our facility. We record cycle times of the "cells" the operators work in, they are divided into load time, robot time, tester, and packout. Generally I let the operator complete the process about five or more
Electronics Forum | Thu May 26 13:28:12 EDT 2011 | blnorman
I agree with Dave on the processing issues, but there are others: Print speed capability (do you get good deposits at various print speeds), humidity exposure (our plant did get to the high side so moisture absorption on the board/stencil was an issu
Electronics Forum | Sat Jun 04 12:11:49 EDT 2011 | davef
Q1) How to identify on good or bad RF shield that could contribute to dewetting? A1) We use Alloy 770 and 752 [German silver] for our RF shields. We have never seen a solderability issue, even aged stock solders well. * Nickel Alloy 752, Nickel Silv
Electronics Forum | Fri Jun 03 11:13:28 EDT 2011 | jeremymc
I've been running a MYDATA TP11 for over a year now and yesterday when I turned it on I was given an error that I have never seen before. It had been a week since the last time I had used the machine and when it was turned on it told me that there
Electronics Forum | Tue Jun 07 08:31:57 EDT 2011 | bootstrap
I am building a rugged digital video camera product that essentially is just a sandwitch of 3 parts: #1: front piece is machined aluminum with C-mount thread #2: middle piece is 1/16" printed circuit board #3: back piece is machined aluminum The
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