Electronics Forum | Sun Aug 19 20:14:57 EDT 2001 | procon
Hi Greg, Have you resolved your problem yet? Daves reply to slow the belt may be your best bet. It appears you are not heating the BGA's uniformily. The temp in zone 6 seems to be a bit odd, are you trying to prolong the soak? If so, try to increase
Electronics Forum | Sat Sep 29 08:12:06 EDT 2001 | roland
Gregory, Thank you for posting the results of running your boards yesterday (glad to hear everything worked out well). I am sure other SMTneters are glad to see the sharing of their information helped. Perhaps others who have used information pr
Electronics Forum | Mon Aug 06 12:30:51 EDT 2001 | Brad R.
I am having some SMT assemblies undergoing thermal shock testing per MIL-STD-883, Method 1011, Test Condition B. I was wondering if anyone has a chart, equation, article, etc. that will give me an idea of the service life of the assembly after it su
Electronics Forum | Wed Aug 08 21:31:31 EDT 2001 | davef
OK, so yer stuck wid dees sembly guys, yer bosses are moroons wid pointy heads, and you gotta fix it. snafu. Paste printing: Measure shape, height, volume, area, registration, and paste bridging. Inspect/control solder paste deposits for fine pitc
Electronics Forum | Tue Aug 07 21:17:24 EDT 2001 | davef
This provides LT 3 misses /1M hits. * Probe all points on one side of the board. Bonus => This lower fixture cost. * Test pads and vias: GT 25 thou from other land traces. * Small [LT 5 ohm] resistor measurements: Use two pads at each end and do 4-
Electronics Forum | Wed Aug 08 09:47:00 EDT 2001 | Adam
I'm trying to develop a process for a small assembly consisting of two mirror image PBGA connectors, I've built the first prototype, but I ran into different problems: 1. The SMT connector was shifting during placemnt, and I knew one issue i have to
Electronics Forum | Thu Aug 09 15:16:20 EDT 2001 | Adam
Thank you Michael, yes we use a Fine Focus X-Ray machine, we also had some dummy connectors to play with, so we profiled the board until we reached a desirable profile. For placement we used a GSM machine, the only issue we ran into there is the par
Electronics Forum | Thu Aug 09 15:16:31 EDT 2001 | Adam
Thank you Michael, yes we use a Fine Focus X-Ray machine, we also had some dummy connectors to play with, so we profiled the board until we reached a desirable profile. For placement we used a GSM machine, the only issue we ran into there is the par
Electronics Forum | Wed Aug 08 17:05:06 EDT 2001 | seand
Hello Morris, To what level are you looking to automate your rework process? What are the main issues/criteria that you are looking to inspect and rework? Genrad owns Nicolet, the market leader in the manufacturing of X-ray inspection equipment an
Electronics Forum | Fri Aug 10 13:30:46 EDT 2001 | mzaboogie
Good Afternoon. Hope all is well with everyone. > I was wondering, What is the preferred equipment > to use for BGA rework/replacement and xray? I > would like to know what equipment you are using > and your likes/dislikes of the equipment.
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