Electronics Forum: ipc 2222

Re: What is spec on stretch????

Electronics Forum | Fri Apr 16 17:19:59 EDT 1999 | Dave F

Hi, I just cheesed my previous attempt at this. I looked through IPC 600 and couldn't find anything relating to dimensional stability of a board with regard to stretch. I found bow and twist but nothing on size. I have a PCB that is .030"

Vertical bend resistors solder fillet

Electronics Forum | Sat Dec 14 02:29:52 EST 2013 | padawanlinuxero

Hello I hope this helps For a component with axial leaded - vertical The clearance of the component body or weld bead above the land is 1.00mm (0.039in) Component body must be perpendicular to the board The overall height does not exceed maxim

Re: What is spec on stretch????

Electronics Forum | Mon Apr 19 10:14:12 EDT 1999 | Justin Medernach

Hi, I just cheesed my previous attempt at this. I looked through IPC 600 and couldn't find anything relating to dimensional stability of a board with regard to stretch. I found bow and twist but nothing on size. I have a PCB that is .0

Large Voids with Via in Pad

Electronics Forum | Tue Apr 13 09:46:39 EDT 2004 | davef

Now, that's different. We misunderstood the problem from your original descrtiption. We thought the voids were showing at the via in the pad. Now, we understand the voids appear to be in the solder balls. Suggestions are: * Search the SMTnet Arch

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