Electronics Forum | Mon Nov 12 06:05:15 EST 2001 | nop_e
Dear all I 'm looking the minimum X-Ray machine capability that is capable to inspect the solder joint of BGAs, Fine pitch BGA and CSP such as open, poor solder joint ,etc... What is the machine specification needed? Thank you for your advise.
Electronics Forum | Tue Dec 23 01:25:38 EST 1997 | J.H Kim
| I'd like someone gives me a tip for elemating of voids | in the mico BGA solder joint and the method of inspection | of them, very exactly.
Electronics Forum | Thu Jan 08 15:49:10 EST 2015 | emeto
I bet you that the problem comes from the ENIG brittle solder joints. About low temperatures I think you can go to the absolute 0 and the device should still work.
Electronics Forum | Thu Feb 19 12:56:29 EST 1998 | Earl Moon
| I'd like someone gives me a tip for elemating of voids | in the mico BGA solder joint and the method of inspection | of them, very exactly. Voids in excess of 20% by each solder ball volume is cause for rejection. Causes are improperly managed proc
Electronics Forum | Fri Jan 12 15:50:51 EST 2007 | pyro747
Hello all, We have resently run across a solder joint from a through hole part that looks to have a wrinkle effect (star look) from the wave? No pattern it just happens here and there, and some of the joints on the same row look smooth and good. Any
Electronics Forum | Wed Jan 07 17:34:52 EST 2015 | duchoang
Customer puts our board to thermal test. Test cycle is -55c to 85c, repeat cycle in 15-20min. After 600 cycles, lot of TSOP joints are cracked, leads lifted. There are reasons such as thin PCB, mechanical impacts, warped PCB... My question is, how lo
Electronics Forum | Wed Jan 07 17:39:26 EST 2015 | duchoang
Additional info: I use SAC305 solder paste on Enig PCB.
Electronics Forum | Tue May 27 21:07:41 EDT 2003 | jedduan
Thanks Dave. It's very nice of you. Jed
Electronics Forum | Thu May 29 09:10:10 EDT 2003 | caldon
Dave- Thanks for the NIST Site.....Again, another useful nugget!!! Cal
Electronics Forum | Sun Dec 28 05:31:59 EST 1997 | Bob Willis
We have a x ray inspection criteria video and poster set which may be of interest check out our home page www.bobwillis.co.uk | | I'd like someone gives me a tip for elemating of voids | | in the mico BGA solder joint and the method of inspection |
