Electronics Forum | Wed Jun 13 06:10:08 EDT 2012 | bobpan
When fiducials on pcba's have poor plating and the vision cant find them repeatably there are a couple of things you can try. 1. Use the WAVI light and turn off (setting of 1) the main bright LED ring on the downward camera. After doing this in teach
Electronics Forum | Mon Jun 25 16:16:01 EDT 2012 | rway
I have some suggestions. We have been fighting bad fids for years. Some things we have tried that have helped is: 1) Look at your relief area around your fid. Does it butt up against the solder mask. We allow 20 mil around the fid as a relief ar
Electronics Forum | Thu Jun 14 15:29:29 EDT 2012 | davef
That you can get good solder flow when hand soldering seems to indicate that the temperature of your solder pot is too low. Still, I'm uneasy that you see gold on the pads after passing the board across the solder pot. Gold is so thin with ENIG. So
Electronics Forum | Thu Jun 14 06:13:47 EDT 2012 | ccgooi
I am running a product with board size ~18"X16". I faced stencil aperture positional accuracy issue which slightly shifted at both end of stencil at positive and negative in X direction thus causing solder paste to pad mis-registration. Due to this s
Electronics Forum | Fri Jul 06 04:55:59 EDT 2012 | ccgooi
I have fabricated a artwork of stencil on a mylar and make comparison on PCB and Stencil in order to confirm if there is any PCB stretching at both end. The results are comparable for both stencil and PCB without any stretching . So,I assumed that th
Electronics Forum | Wed Jul 04 11:55:23 EDT 2012 | tony_d
We are a low to mid range manufacturer as well. I looked at several different vendors incuding; Mirtec, Viscom, Marantz, Omron, VI Tech, Orbotech and Yestech. We selected Mirtec. As a mid range manufacturer, one of my main concerns was quick and eas
Electronics Forum | Thu Jun 21 16:30:47 EDT 2012 | grauen06
We are currently using an ACE K.I.S.S. 104. We used SN100 solder with AIM NC265 flux (no clean, alcohol-based). Also, we use topside preheat at 100 degrees C and a 6mm nozzle (as big as we can go with this application). The PCB has a matte finish as
Electronics Forum | Fri Jun 22 21:07:08 EDT 2012 | tank1266
I have had Selective issues such as yours on two very different Selective Solder Machines. I was able to eliminate these issues by using Alpha EF-9301 wave flux with any SAC305 solder. It's a more aggressive flux, but really made the difference. Anot
Electronics Forum | Wed Jul 04 10:17:18 EDT 2012 | daxman
Good morning, Just a few questions to clarify: 1. You backed up your machine proper data. 2. You upgraded Fuji Flexa. 3. You re-transmitted the proper data 4. Now, components are not placing properly? Do you have a fuji 96-001 calibration board? Ha
Electronics Forum | Mon Jun 25 03:52:24 EDT 2012 | awtm
Our Customer had detected tarnished pad on ImAg PCBA and had conducted several SEM-EDX test at the soldermask below some of the chip resistors. High concentration of sulfur was found and it can be significantly reduced after further chemical cleaned
