Electronics Forum | Thu Mar 13 19:11:03 EST 2003 | Wes
Does a third solder reflow compromise component and solder reliability? We find that the only way to rework a particular BGA without warpage is to reflow the entire board.
Electronics Forum | Fri Mar 14 04:29:06 EST 2003 | emeto
Hi, It's not recomended to do more reflows.Reliability of the boards decreases and a lot of defects appear.Try to repair other way- hot air or something like that.(main is to be local)
Electronics Forum | Wed Mar 19 16:12:51 EST 2003 | Sudhir
I would suggest to have a rework station to rework only a single component we are having a genrad rework station to do these things
Electronics Forum | Wed Mar 19 21:01:49 EST 2003 | Rob
I would suggest creating a special reflow profile, heating the board up to 130C about 50 c below eutectic point (183C). Then applying heat to only the BGA, this will prevent thermal shock to surrounding components.
Electronics Forum | Fri Mar 14 15:44:37 EST 2003 | Claude_Couture
Do you mean on a drawing of said PCB, or just on the CAD file? If in the CAD file, use a word processor and do a search. On a drawing, There are a number of PCB cad software out there, they should have a search command. if not, you are on your own.
Electronics Forum | Fri Mar 14 19:49:34 EST 2003 | William Guatemala
The software you are looking for, is CicuitCam. This software will do all the applications you are mentioning. If is just for inspection purposes, use GR force from Genrad. Genrad is now own by Teradyne. I hope this helps. Tnx.
Electronics Forum | Sat Mar 15 13:58:49 EST 2003 | daanterstegge
You should really try SMT-Maestro, as it is made especially for this purpose. Good chance that you'll even be happy with the free version ! It's available from http://www.smtinfo.net/smtmaestro.html
Electronics Forum | Tue Mar 18 01:18:15 EST 2003 | ereznahoum
Hi, I have to protect A small 3v battery power circuit with 2 layer PCB in plastic box against �Air ESD�. What is the best PCB layout for this purpose.
Electronics Forum | Thu Mar 20 07:19:38 EST 2003 | davef
Here's one approach: http://www.littelfuse.com/PDFs/AppNotes/ec616.pdf We have no relationship or receive no benefit from the company referenced in the above link.
Electronics Forum | Sat Mar 22 12:18:39 EST 2003 | MA/NY DDave
Hi, As I read and reread, I don't understand your question. Is it a design protection for in use?? Is it packaging while shipping protection?? What is the signifance of the 3Volts?? YiEng, MA/NY DDave
