Electronics Forum | Fri Aug 20 12:41:20 EDT 1999 | stefano bolleri
| | Yesterday as I was creating a profile on a plastic BGA using Conceptronics freedom 2000 rework station, I happend to discover that I was able to remove solder bridging from a plastic BGA. | | | | This is what I did. | | | | Created a removal pr
Electronics Forum | Wed Feb 14 21:14:45 EST 2001 | davef
BGA Shorting 1 Damaged mask in between the BGA pad and via on the substrate. 2 Poor print registration. 3 Poor via segregation from the pads? Are they tented or is there just a dam in between? 4 Review the profile. You can run into a number of p
Electronics Forum | Tue Apr 25 16:42:00 EDT 2006 | russ
Sometimes you gotta do what you gotta do! We have to perform this on occasion as well. We perform this when we cannot get a board to stay free of tacoing, oilcanning, sagging or warping. (we needed a bigger preheater dimension wise) We have one no
Electronics Forum | Fri Nov 13 23:33:33 EST 1998 | Kallol Chakraborty
| | | I believe that gold fingers on my circuit boards are being | | | contaminated and need to clean them with some chemical | | | solution. Any recommendations. | | | | | Chuck: What is the type and source of your contamination? Dave F | | We a
Electronics Forum | Tue May 18 15:36:18 EDT 1999 | Tony
| | | What is the best way to re-ball a BGA? Who has the best system for doing it? | | | | | I'm using our SRT rework stuff to reball in house - when necessary. Of course, we only do this for protos and test boards. We use a standard micro-stencil,
Electronics Forum | Thu Apr 11 19:06:59 EDT 2002 | tmarc
We are using 1mm pitch BGAs with a great quantity of via(s) under the component. Very shortly we will be placing CSPs with .65mm pitch. Our via(s) are solder masked, however we generally have a percentage of them that the masking is thin enough that
Electronics Forum | Thu Sep 10 21:48:37 EDT 1998 | Dave F
| I'm very familiar with the great board space savings of BGA and all the "claims to fame." However, can someone out there tell me if any concern exist in the inspection realm. Additionally, solder cracking, CTE/TCE mismatches, no leads for stress re
Electronics Forum | Tue May 18 16:48:49 EDT 1999 | Tony
| | | | | What is the best way to re-ball a BGA? Who has the best system for doing it? | | | | | | | | | I'm using our SRT rework stuff to reball in house - when necessary. Of course, we only do this for protos and test boards. We use a standard mi
Electronics Forum | Fri Aug 20 14:51:47 EDT 1999 | Tony
| | | Yesterday as I was creating a profile on a plastic BGA using Conceptronics freedom 2000 rework station, I happend to discover that I was able to remove solder bridging from a plastic BGA. | | | | | | This is what I did. | | | | | | Created a
Electronics Forum | Fri Aug 20 14:51:55 EDT 1999 | Tony
| | | Yesterday as I was creating a profile on a plastic BGA using Conceptronics freedom 2000 rework station, I happend to discover that I was able to remove solder bridging from a plastic BGA. | | | | | | This is what I did. | | | | | | Created a
