Electronics Forum | Wed Jun 30 11:38:05 EDT 1999 | Brian Conner
| We are wave soldering some fabs with a lot of unmasked trace area along the edges. The trace area is solid copper covered with tin / lead, no masking, no components along the edges, same on solder side and component side (goofy board design). Ins
Electronics Forum | Mon Mar 13 15:10:52 EST 2000 | Stuart Adams
Assuming agressive design rules what is the minimum distance I can get away with between the board edge and a SMT pad and between the board edge and a plated mounting hole ??? (The board is only 1"x2" and the mounting holes are 80 mil dia, 125 mil
Electronics Forum | Mon Mar 13 15:10:52 EST 2000 | Stuart Adams
Assuming agressive design rules what is the minimum distance I can get away with between the board edge and a SMT pad and between the board edge and a plated mounting hole ??? (The board is only 1"x2" and the mounting holes are 80 mil dia, 125 mil
Electronics Forum | Tue Mar 14 08:54:22 EST 2000 | Nancy V
Would this dimension be the same if the board is panelized and the board has break aways? Nancy
Electronics Forum | Tue Mar 14 08:54:22 EST 2000 | Nancy V
Would this dimension be the same if the board is panelized and the board has break aways? Nancy
Electronics Forum | Tue Mar 14 21:22:41 EST 2000 | Dave F
Bingo!!! By panelizing and adding breakaway rails (as Nancy says), Stuart can pour copper up to his board fab's tolerance from the board edge. Traditionally, he just wants to make sure no copper shows on the edge of the board. Then again, it's his
Electronics Forum | Tue Mar 14 21:22:41 EST 2000 | Dave F
Bingo!!! By panelizing and adding breakaway rails (as Nancy says), Stuart can pour copper up to his board fab's tolerance from the board edge. Traditionally, he just wants to make sure no copper shows on the edge of the board. Then again, it's his
Electronics Forum | Wed Mar 19 09:54:44 EDT 2008 | davef
Here's what we suggest: * Keep a 5-mm space between a board edge and a ceramic capacitor. * Mount the capacitor parallel relative to the edge. * Design pads about a half of the termination. * Fixture the board when using your pizza cutter.
Electronics Forum | Sun Oct 09 16:57:30 EDT 2016 | davef
IPC 2222A Sectional Design Standard for Rigid Organic Printed Boards, 5.3 Design Requirements for Printed Board Assembly
Electronics Forum | Tue Aug 07 08:20:47 EDT 2001 | CPI
Are there other components on the board? If so, how does solder quality look on them? Are they all reflowing? Are the sections of the uBGA�s sitting on a ground plane? Sounds like un-even heating. You should attach a couple thermal couples and see h
