Electronics Forum | Thu Jul 23 07:03:09 EDT 1998 | Wayne
| My firm has just begun it's first PCB that will use BGA packaging. I have been reading up on the processes involved with BGAs and was wondering if you need to apply solder paste to the pads prior to applying heat and mounting the part to the board
Electronics Forum | Mon Jul 20 12:58:51 EDT 1998 | Dew Lolly
QFP's are best left the professionals. There are MANY subtle issues with fine pitch lead forming such as critical tool design issues ability to check critical dimensions etc. Unless you want to replow this grown in hopes of getting a promotion or c
Electronics Forum | Wed Jul 22 16:00:24 EDT 1998 | David A. Pinsky
| Who knows something about the reliability of plasti PEMS and its enhancemant by application of conformal coating (Parylene, metal, SiO2, SiNxOx, etc.) ? We have performed failure analyses on PEM's in our lab for many years. The vast majority of pa
Electronics Forum | Mon Jul 20 13:47:04 EDT 1998 | MMurphy
:On a dense board, a great way to reduce solderballing is to either; print paste 1:1 with pad size using a 5mil foil, reduce aperture openings by 10% of pad size or change aperture shape to "Home Plate" design. If none of these work on their own you
Electronics Forum | Mon Jul 20 19:31:00 EDT 1998 | Eric
| | :On a dense board, a great way to reduce solderballing is to either; print paste 1:1 with pad size using a 5mil foil, reduce aperture openings by 10% of pad size or change aperture shape to "Home Plate" design. If none of these work on their ow
Electronics Forum | Tue Jul 14 21:31:19 EDT 1998 | Wen-han Tan
We just have a use cp4 .I have a problem on transfering data between cp3 to cp4 .when I use the data for cp4 I can't have parts in correct location. Is that normal? or it's because that has a different vision system.if so.how can i do with it.the dat
Electronics Forum | Tue Jul 14 08:19:29 EDT 1998 | Cunli Jia
| I just need to know if anyone else is experiencing this. | The banners at the top of the screen are causing interference with my back button. it seems as though each time the banner changes, It's also adding one more step in my history, so when I h
Electronics Forum | Tue Jul 14 07:58:33 EDT 1998 | Bill Woehr
| I am eager to hear from anyone who has experience with X-RAY inspection equipment (specifically for BGA devices) or can make any recommendations. Any knowledge of second hand equipment for sale would also be valuable. | Regards | Rob Hello Rob I am
Electronics Forum | Fri Jul 10 13:45:33 EDT 1998 | Bob Willis
To help you there is a free standard on inspection which may be of benifit on my home page. It covers x-ray inspection standards just download it for reference. www.bobwillis.co.uk | | I am eager to hear from anyone who has experience with X-RAY insp
Electronics Forum | Mon Jul 06 15:00:17 EDT 1998 | Claudio Carnevali
I'm proud to announce our new thermal profiler TOM300. It has 4 probes, an easy an powerful W95 software and it'll solve your soldering problems (especially reflow SMD). If you're interested to buy it, sell it in your country or you just want to ask
