SMT electronics assembly manufacturing forum.
We had an order using a 2up PCB (same manufacturer) with sam... - Apr 14, 2008 by Mark M.
I dont know if this is related, but there appears to be a bl... - Apr 14, 2008 by Sr. Tech
Bottom-side SMT parts CAN and DO go liquidus during the 2nd ... - Apr 14, 2008 by Dirk Nuendyke
Contaniminates are always a issue. What chemicals do you ... - Apr 15, 2008 by lellis
If the solder had formed an intermetallic then it couldn't h... - Apr 15, 2008 by MfgEng
We find it curious that: * Heat slug pad for Q19 didn't tak... - Apr 15, 2008 by davef
One issue stated incorrectly was that the work order that ha... - Apr 16, 2008 by Tony SMT
Do you specify copper weight on your boards? This could be ... - Apr 16, 2008 by Hussman
The problem is there wasn't any reflow when the board went t... - Apr 16, 2008 by Tony SMT
Per Tony SMT Here are more photos: Q15, Q16, Q17 repre... - Apr 16, 2008 by Mark M.
What board finish are you using? Is it the same on both boa... - Apr 16, 2008 by James
Are there any heat sink issues? Re-version of boards with... - Apr 16, 2008 by lellis
This looks like it didn't solder the bottom side completely.... - Apr 16, 2008 by jdengler
I'd suspect contamination also, possibly from the board supp... - Apr 17, 2008 by Robert