Electronics Forum | Tue Jan 06 16:31:41 EST 2015 | jacklucas
In switching to lead free processing, we find ourselves having over 400 PCB part numbers with Sn63 HASL finish. And there is no hope of quickly purging inventory and getting our drawings changed to call out a lead free finish. I want to avoid having
Electronics Forum | Wed Apr 28 14:58:39 EDT 2004 | davef
Solder ball acceptability: IPC-A-610, 6.5.3.1 & 12.4.10
Electronics Forum | Tue Mar 17 07:32:10 EDT 2009 | davef
Solder ball acceptance: IPC-A-610, 6.5.3.1 & 12.4.10. Solder balls: 5 ball system: * No more than 5 balls per square inch (100mm2) allowed * Solder balls can not be greater than 5 mil (0.005in) (100um) * Solder balls cannot be less than 5 mil (100um)
Electronics Forum | Fri Aug 25 09:25:41 EDT 2006 | YQ Deng
For FR4 ENIG PCB: 1. In a normal condition, what is the broken location after BGA peeled off?(FR4 layer or Ni layer or solder ball) 2. What is the soldering acceptance criteria for BGA in CMK?
Electronics Forum | Wed Aug 12 00:16:43 EDT 1998 | Ron Costa
Hello everyone, I am currently running a gold plated SMT board and am experiencing tiny solder balls between the pads and the masking between the 20 mil pitch devices. I'm looking at these boards with a 60x microscope. IPC-610 say's any visible solde
Electronics Forum | Wed Aug 04 16:37:56 EDT 1999 | Doug
| Hello Netters, | | Can anyone provide me with info or where to get info on acceptability of solder beads and solder balls? | | Thanks for any help | | Tom B. | | Tom, The IPC sets the standards for acceptability. But in a nutshell if the ball i
Electronics Forum | Wed Aug 04 15:05:17 EDT 1999 | Tom B.
Hello Netters, Can anyone provide me with info or where to get info on acceptability of solder beads and solder balls? Thanks for any help Tom B.
Electronics Forum | Thu Feb 10 11:40:25 EST 2005 | Carol
Hello All, Can somebody direct me to a facility or school or even a business that can offer an x-ray course for Class 3 electronic circuit board population interpretation, as in BGA ball acceptance, connector solderability fill acceptance etc.? Some
Electronics Forum | Thu Aug 05 10:12:18 EDT 1999 | John Thorup
| Hello Netters, | | Can anyone provide me with info or where to get info on acceptability of solder beads and solder balls? | | Thanks for any help | | Tom B. | Hi Tom Wolfgang is right. We think you should correct your process to reduce ball f
Electronics Forum | Thu Oct 26 16:38:08 EDT 2000 | Philip A. Reyes
Hi Sir Charles! Good Day! I hope you can help me about my queries. 1. What is the acceptable misregistration or misalignment of balls after reflow soldering of PBGA module on the PCB? 2. Is there any criteria for solder ball defect or solder beads
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