Electronics Forum | Thu Jan 14 07:03:41 EST 1999 | Bob Willis
For the engineers who enjoyed the last two quizs I put on my web page here are two more. One on printed board manufacture and one on rework and repair of surface mount boards. Its a bit of fun but I feel that on line training is coming and is the thi
Electronics Forum | Wed Jan 13 17:08:20 EST 1999 | Jim Nunns
I have some BGAs with a warped chip carrier. Some of the balls are tall like columns and some are short oval shapes. How can I determine when warpage will cuase failures from stress. Is there a spec out there from studies anyone has done? Any commen
Electronics Forum | Mon Jan 11 20:33:13 EST 1999 | Chris G.
I'm looking for a CABGA test socket for a 2 CABGAs. One 81 ball CABGA is 9mm x 9mm with .46 mm dia balls on .8mm pitch. The other is a 64 ball CABGA 8mm x 8mm with .46 mm dia balls on .8mm pitch. I need to pretest CABGAs before placement due to hi
Electronics Forum | Mon Jan 11 20:26:54 EST 1999 | Chris G.
I have used conductive adhesives for some time now on thickfilm. Does anyone know of a really good conductive adhesive to attach flip chips to flex circuits? I would like to stencil print the adhesive to the substrate and then place the flips chips
Electronics Forum | Tue Jan 12 12:51:00 EST 1999 | David
| | _|__|__|__|__|_ | | | | | | | |_ __ __ __ __ _ | | | | | | | | | | 2. Direction thru Wave ----------------
Electronics Forum | Mon Jan 11 09:00:17 EST 1999 | Kelvin Chow
Some of my friends ask me if sombody use lead free solder ball on BGA, espically PBGA packages. I wonder if 96.5Sn/3.5Ag (m.p .221 oC) or 58Bi/42Sn (m.p. 138 oC) would be suitable candidates? Do you have any experience on this subject? Kelvin
Electronics Forum | Wed Jan 13 00:38:06 EST 1999 | Chris G.
| I need leads on equipment vendors for selective soldering systems. I have information about ERSA and Seho already. I want to contact Air Vac in particular, but I can't find thier phone number. Thanks for the help | Another for your list. Gener
Electronics Forum | Fri Jan 08 16:31:05 EST 1999 | Jason Tomlinson
Our company is beginning to delve into some 20 mil applications and I'm curious to hear what kind of success others have had placing these components. What kind of fall out rates we might expect or any specific difficulties encountered and what acti
Electronics Forum | Fri Jan 08 08:46:56 EST 1999 | Tad Anderson
I am searching for application notes on the SOD-80. Also, I am looking for any problems that have been discovered while using it. Also, we are looking for the pick and place equipment upgrades that will be needed to use the package- Pricing, manufa
Electronics Forum | Fri Jan 08 06:49:23 EST 1999 | John W
I'm in the process of moving from water washable flux to a full no clean process for the wave soldering process, thing's seem to be going well (so far...). The one problem I still have is cleaning the wave solder carrier's to remove the no clean flux
