Electronics Forum | Tue Sep 01 16:40:50 EDT 2009 | jimprice9
I am the North American sales manager for Sony. This exchange was brought to my attention by an amused friend. The VR systems was marketed under the brand name Varir and produced by Sony Kohda. It was discountinued over 3 years ago. The CPC500 is
Electronics Forum | Wed Aug 12 22:28:20 EDT 2009 | boardhouse
When choosing materials, do you specify your > thermal PCB needs? For instance, are you > specifying temperature or are you selecting > materials by brand name? With this type of product I would call out the material Manufacture and brand - Such
Electronics Forum | Thu Aug 13 10:58:58 EDT 2009 | davef
First piece of advice: build the board as you would any other board. Probably, you will be surprised at the holding force of the solder of the connections of the BGA, because the surface area of the solder is very large compared to the weight of the
Electronics Forum | Thu Aug 13 12:23:39 EDT 2009 | robhs
Thanks Dave. What you say makes complete sense. We ran a job a short while back in this way (though without bonding) and found we had a much higher than normal failure of the BGAs which I can only attribute to the secondary reflow. As I have only got
Electronics Forum | Fri Aug 14 08:01:25 EDT 2009 | davef
So, in order to understand your issue better, please * Tell us more about your process [eg, process flow, machine setting, measured temperatures, etc] * Tell us more about your materials [eg, board, paste, etc] * Describe the extent of the problem [e
Electronics Forum | Fri Aug 28 05:07:59 EDT 2009 | sachu_70
Do you clean the stencil manually or using the automated under-stencil cleaner on your Printer (recommended)? 1. Ensure that stencil wipes are lint-free and soaked sufficiently with solvent before use. 2. If your printer supports automated cleaning
Electronics Forum | Thu Aug 13 19:30:57 EDT 2009 | secura1
I'm new to all this... we have a board with one BGA blue tooth device. one test for the board is an rf test that measure successful packet transmission. we find that we get much lower error rates if we "reflow" the BGA with a heatgun. We do this
Electronics Forum | Sun Aug 23 11:42:01 EDT 2009 | ysutariya
Hi Dave, I haven't tried the Probimer yet, but the Taiyo ink didn't hold up too well. As a PCB fabricator, finding a white soldermask that has good trace coverage and survives 4X solder immersion (HASL) is like the holy grail of white soldermask.
Electronics Forum | Tue Aug 18 02:10:14 EDT 2009 | sergey2007
Hello, I have a customer who recentely installed a vapor phase soldering system. Everything goes pretty well, but from time to time the customer has the same problem with the soldering: one of the components on PCB (usually, it's a QFP package) is ro
Electronics Forum | Wed Aug 19 18:28:01 EDT 2009 | ratsalad
I'd like to ask a question. Have you determined where all those solder balls are coming from? I even see them on top of U40 and U15. This seems like a dumb question to me considering the size of the part (and having seen pictures of only one boa
