Electronics Forum | Thu Jul 15 08:03:36 EDT 1999 | Mark Quealy
| | I am trying to solder a 388 ball BGA to an Andon Electronics Corp. BGA socket adapter and I am having problems in the reflow of this part. I put no clean paste flux in the solder cups of the adapter then put the BGA part onto the adapter and run
Electronics Forum | Sat Mar 11 15:05:54 EST 2006 | Kerm
Hi Craig: I agree with muse. The problems almost always will show up later on duringg life cycles in terms of reliability problems. While the solder joints may look acceptable right after production there is no guarantee of meeting the reliability r
Electronics Forum | Wed Jan 17 09:32:09 EST 2007 | Jeff
Hi, I am having problems reworking a lead free PBGA (23mm x 23mm, 1mm pitch). The board is relatively small (5" X 4" X 0.063"). During the removal stage, a thermocouple was placed at the solder ball level (between the board and underneath of compo
Electronics Forum | Thu Jul 17 04:42:47 EDT 2003 | sanjeevc
Hi! One technique: 1. Remove all balls 2.Make > a mask(stensil)for reballing.The holes of the > mask must be 0.8-0.9 the size of the pads. 3. > Reball chips 4. Reflow chips Good luck Hi Yes,we have done quite a bit of reballing of BGAs with
Electronics Forum | Tue Apr 27 05:10:34 EDT 1999 | Earl Moon
| Which is the preferred method for soldering a bga, adding solder paste or not? Solderpaste manufacturers say to add solder while the rework station manufacturer's say it's not necessary. | Paste is preferred by not necessary. Our studies, conduct
Electronics Forum | Tue Apr 13 22:48:11 EDT 2004 | Ken
I assumed the balls were tin/silver 221C or tin/silver/copper 218C liquiduous....but, this is obviously not the case. It looks like you balls are almost pure tin (mp=238C) You are correct. This is exactly the same as using 10/90 high temp balls o
Electronics Forum | Fri Aug 14 07:27:42 EDT 1998 | Earl Moon
| | Hi, can you please tell me how to make green coating and through-hole plating of PCB? Thanks! | | Xingsheng | Xingsheng: Welcome. | Bible on PCB fabrication: Printed Circuits Handbook, Clyde Coombs, McGraw-Hill | Web resources: http://www.pw
Electronics Forum | Fri Aug 14 08:59:51 EDT 1998 | Dave F
| | | Hi, can you please tell me how to make green coating and through-hole plating of PCB? Thanks! | | | Xingsheng | | Xingsheng: Welcome. | | Bible on PCB fabrication: Printed Circuits Handbook, Clyde Coombs, McGraw-Hill | | Web resources: htt
Electronics Forum | Tue Sep 23 06:58:13 EDT 2003 | chrissieneale
Look out for shorts due to too big pads / balls colasping too much / too much solder paste though. there's a fine line and it's expensive to find it!
Electronics Forum | Wed Jan 02 15:32:27 EST 2008 | shrek
HA-HA-HA... Krikies. What are ya mate? A slavakian?
.gif)
