Electronics Forum | Sun Jan 06 22:14:57 EST 2008 | mac88
If the machine or machines couldn't recognize the fiducials, you can grind it with a fiberglass eraser. If the fiducial are missing you can use tooling holes, and/or via holes. You can verify the hole size and tolerance on the PCB assembly drawing.
Electronics Forum | Mon Apr 05 17:47:21 EDT 2010 | boardhouse
Hi Deni, X-ray will not be able to see through Power and Grn planes. Your only way to find out is: 1) ask your board supplier to supply stack up used. 2) surface grind layer by layer to validate if it is correct stack up. What is making you think
Electronics Forum | Fri Jul 25 12:04:41 EDT 2008 | wavemasterlarry
My plan is to remove as much of the parts as possible and reuse them. Once removed I plan to fix the baord as well. Now have a fresh board to build too.Just about every part can be reworked these days. Even BGAS. Most boards can be redone so that
Electronics Forum | Mon Sep 21 18:57:23 EDT 1998 | Dave N.
Currently we are having an issue with our current PCB routing cutters in 0.125". It has come to our attention that the vendor has set the mean diameter to be .1235" +/-.001". As such, we recieve a number of cutters in the .1225 realm. This has caused
Electronics Forum | Tue Sep 14 14:25:35 EDT 2004 | scombs
Thanks everyone for all the input. All of our stencils do have the PCB # etched on the foil but when operators look for the stencils they are looking for the part # on the frame since they are all stored vertically in a couple of Remstar shuttles and
Electronics Forum | Tue Apr 01 08:59:06 EST 2003 | rdr
Hi all, I've got a question that hopefully someone can provide insight. We have a gold immersion assembly that we believe is experiencing fractures or non wetting on a certain BGA. To be sure that it is a fracture and not a wetting issue I would li
Electronics Forum | Sat Mar 20 00:33:28 EST 1999 | Mike C
| We are having a small number (~2%) of our boards pass our manufacturing diagnostics, fail once they reach the customer, fail when they get back to us and then start working again after handling them for a short time. We have eliminated a lot of it
Electronics Forum | Tue Oct 11 05:52:04 EDT 2005 | GS
I know this could not be an SMT thread, but in certain way it impacts the PCB/PCBAs Assemblers. Hello everybody, who could help me please to identify if this tool Mmust be or Not compliant with the WEEE and ROHS Eu Directives ? I can define
Electronics Forum | Fri Mar 16 16:26:34 EDT 2007 | James
This shows once again that this "what to buy?" and "What do you think about this machine..." crap really has no place in this Forum in my opinion. People have to get off their ass and do some investigating on their own. You have to be living under a
Electronics Forum | Fri Jul 10 07:34:00 EDT 2020 | elijah
From the poor bonding strength of the board, the surface quality problems of the board are divided into: 1. The cleanliness of the board surface; 2. The problem of micro graphite (or surface energy) on the surface. PCB circuit board proofing Youke bo
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