Electronics Forum | Thu Aug 20 08:23:23 EDT 2009 | ratsalad
One diagnostic tool that I have found useful in the past is the "hot plate test". Place suspect components and/or PCB's on a hot plate and turn it on High. Then observe. Granted the conditions on the hot plate are not the same as in a reflow oven,
Electronics Forum | Fri Aug 21 04:43:14 EDT 2009 | ghepo
Hello, I suggest you visit the website http://www.analysispcb.com, where I found these information : PARAMETERS FOR DOUBLE “V” SCORING LEAD FREE LAMINATES Typ WEB Thickness, 1.6mm : 0.38mm (+.15/-0) "...Tg is not a good indicator of a materials’
Electronics Forum | Mon Aug 31 07:56:39 EDT 2009 | d0min0
Hello, since some days we are facing strange problem with SMT component reflow paste on one side of the component is reflowed correctly while the other side is 10%-70% non-reflowed (same component on 3 positions per module, alwyas the same land pad)
Electronics Forum | Tue Sep 01 12:47:37 EDT 2009 | rodrigo
Hi all, Our IPII just developed yet another issue. The PCB goes in the conveyor and when in the loader, the lifter goes up and after a few seconds I get a lifter cycle alarm error. I checked the in/out screen and when I make the lifter go up, the se
Electronics Forum | Fri Sep 04 02:09:03 EDT 2009 | sachu_70
Hi Walter, Do you refer to a sprayfluxer operation? The problem seems to be a parameter setting issue. 1. Ensure the wide angle spray reaches PCB with optimum jet pressure. You could pass a glass plate to understand flux coverage and view Jet pressur
Electronics Forum | Thu Oct 15 19:00:58 EDT 2009 | ericg2000
I started a new company that has a Testronics 504 AOI machine. No one knows how to program it, and they can't find the manual. So far I have been able to load a centroid file, and set the board size. However, when i load everything, all my parts a
Electronics Forum | Fri Oct 30 10:21:25 EDT 2009 | gantry228
I know of a machine that has: - 54 8mm slots - Single up JEDEC tray holder - And the availability to present tube parts without taking feeder slots. This product has full vision and can pick and place 0201 components and "fine" pitch to .020". With
Electronics Forum | Thu Oct 29 21:16:15 EDT 2009 | mah115
Fellows, We are considering getting an AOI machine to inspect boards that our vendors are giving us (we outsource the assembly of PCBAs). We have low volumes of boards, but every time a defect does slip by our human inspectors, it causes a lot of
Electronics Forum | Sun Feb 28 12:40:47 EST 2010 | jmelson
I'm in St. Louis, MO, US Midwest. I wrote my own CAm interface, and it works REALLY well. It is only about 2 pages of c code. Of course, it only translates from one CAD package's format to one P&P machine's format. That makes it much simpler to w
Electronics Forum | Wed Feb 17 12:16:17 EST 2010 | dcell_1t
Hi there: During the past weeks (let's say since beginning of the year) we've been experiencing some issues with shifted components. We verify for position before Reflow oven and the components are Ok, but they observe shifted after reflow. it occurs
