Electronics Forum | Tue Nov 21 11:07:24 EST 2006 | ratsalad
If anyone is interested, I've written a program to read the PanaPRO .pcb file and generate a Sanyo TCM-V850/UIC 4785 program. It sure beats entering the program manually.
Electronics Forum | Tue Nov 21 15:09:14 EST 2006 | ratsalad
Yes. I figure if someone can make use of it, they can have it.
Electronics Forum | Wed Nov 29 01:12:12 EST 2006 | callckq
Dear Davef, Thanks for your input...The crack happen at the pad/solder ball interface..Pls review the new thread that I post just now with title called "BGA BALL CRACK AT PAD/SOLDER BALL INTERFACE" Thanks!
Electronics Forum | Wed Nov 29 01:14:15 EST 2006 | fastek
I would hope you have already done this but in case you haven't I would suggest a career change..........determine which machine is causing the problem and then do a PM on it.
Electronics Forum | Wed Nov 29 01:20:44 EST 2006 | fastek
Guess- If a component drops at the camera the machine will not proceed to attempt to place it and drive the nozzle into a brick of solder paste. The line sensor will catch the fact there is no component on the nozzle and will retry to pick and place.
Electronics Forum | Wed Nov 29 14:49:38 EST 2006 | MS
Any recommendation to reduce solder beads next to 0402, 0603 and 0805 caps and res? What about home plate vs. bow tie stencil aperture design?
Electronics Forum | Wed Nov 29 17:00:40 EST 2006 | John S.
We've used both effectively to resolve this issue. Check with your stencil manufacturer. Often, they can give you a very good starting place on issues like this since they see everyone's designs. John S.
Electronics Forum | Wed Nov 29 17:05:15 EST 2006 | slthomas
I have used a 10% area reduction with home plates on 6 mil stencils with good success. If you're using 5 mil stencils you might go with 0 or 5% reduction.
Electronics Forum | Wed Nov 29 22:48:42 EST 2006 | davef
Look here: http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=45733
Electronics Forum | Fri Dec 15 00:11:12 EST 2006 | pnguyvu
Contact Steve Yen @714-636-6211 or incoming@usastencils.com He'll be happy to help to with that. Good luck !
