Electronics Forum | Wed Apr 18 16:13:43 EDT 2012 | tomzee
Hello All. First time poster. I need to design a PCB which will include a Bumped-die type chip with 6mil (152.4 um) pad pitch. I read somewhere that FR4 type board may not be a good choice for such small footprint. I have not had to deal with board
Electronics Forum | Tue Jun 05 21:07:23 EDT 2012 | dekhead
My personal preference is for manual set-up on the conformal tooling and have not seen an issue with bad support due to parts positioning variation... but if this becomes a legitimate issue, you can run in auto mode to reconform for each board (I lik
Electronics Forum | Fri Jun 15 18:22:49 EDT 2012 | stentech
Our lasers are accurate to +/- approx. 5 microns over 20 "X-Y. I have seen boards 18 x 24 stretch 7mils. I would agree with others, the only way is to send a board to you stencil vendor so they can edit the file to match the board. This is very commo
Electronics Forum | Sun Jul 15 21:00:37 EDT 2012 | sarason
Try using the accounting functions in my program PCB Synergy. http://members.iinet.net.au/~sarason/ It can calculate the number if components used in a run by simply importing the PCB or the schematic or a PIK file. It generates CSV which has the num
Electronics Forum | Tue Jul 10 09:00:47 EDT 2012 | stentech
until you know if you stencil does align with the pads on the board all the fids in the world will not help you. registration is key. We do it a lot at our facility in Toronto as we have lots of measuring equipment. In cases like this. We lay the ste
Electronics Forum | Mon Jul 30 16:26:45 EDT 2012 | rdouglass
Just curious if anyone else has trouble with the installation and inspection of DIMM Connectors (I know - these are through-hole parts!) We have boards with 240 pin DIMM connectors and occasionally a pin may not be properly aligned prior to press-f
Electronics Forum | Wed Aug 08 09:10:55 EDT 2012 | davef
The boards are being soldered in the wrong direction. Rotate them 90* and your problem will go away. To demonstrate this further, rotate the board 180* and observe that the problem moves to the opposite side of the connector. I assume that in the
Electronics Forum | Thu Aug 23 10:16:43 EDT 2012 | dontfeedphils
There are a couple of things that I would check. Check the board clamps and make sure that they're in good shape and that they're actually holding the board securely. If those check out I would take a look at the fid camera and make sure that every
Electronics Forum | Wed Dec 05 17:43:25 EST 2012 | davef
In order to get started in understanding the basics of wave soldering, read this http://www.ami.ac.uk/courses/topics/0225_wave/index.html Many board assemblers have replaced wave solder machines with selective soldering machines. * Often, modern bo
Electronics Forum | Fri Jan 18 21:13:51 EST 2013 | ngineer
I was trying to set up a new board, and after creating the board directory, the CC spit back a line of garbage and said the directory was invalid. I pressed escape to start over, and it froze. Now when i start it every time, it goes through login a
