Electronics Forum | Tue Mar 30 02:58:55 EST 2004 | Grant Petty
Hi, Thanks for the ideas. With the solder mask curing problems, can you normally wipe off the white residue, as we can do this on our boards with our fingers. It's almost like the surface of the board has a "wet dried up" look to it, and it's a smok
Electronics Forum | Wed Apr 28 12:13:57 EDT 2004 | Jack
You can find the procedures for different package types in the IPC-7711 & 7721 manuals. These can be purchased from the IPC.[http://www.ipc.org/] You can also try Circuit Technology: http://www.circuittechctr.com/guides/guides.shtml These manuals and
Electronics Forum | Thu May 13 08:59:15 EDT 2004 | newbie
Yeah, I've got a question. I was just hired and I just need some help. Can somebody explain to me how a pick and place machine works and how I can program it? I know you're supposed to be putting these spool like things on the back. Can somebody help
Electronics Forum | Mon Jun 07 03:03:12 EDT 2004 | Frederic
I have a question about solder paste. When the solder paste lost her tackines (dry out) how can i refresh this solder paste?. Can i add a little flux? or it is ban. I noticed that after reflow solder joints look shiny but i can see some discolour (f
Electronics Forum | Tue Jun 15 11:20:34 EDT 2004 | Vic
Hi Guys, Can you give me a good bird's eye view in Verifying First Off via ICT Test. We currently verify our first off via naked eye for just the solder joint quality, orientation of parts etc. Aside from open and shorts, what can ICT verify? how c
Electronics Forum | Thu Nov 11 16:16:58 EST 2004 | BWet
Ladies and Gentlemen: Can anyone recommend a procedure for testing the efficacy of ionizing air guns (high voltage electric) on a routine basis in terms of a preventative maintenance? I know that you can get carried away with charge decay plate etc.
Electronics Forum | Wed Feb 02 11:09:10 EST 2005 | cyber_wolf
Dave, The reason the tape doesn't work is because it can be removed. Same with bar codes. (You can also swap them) My idea is that each operator is assigned their own # on a stamp. Not the stamps that you can change. Fixed ones. I know of a large l
Electronics Forum | Tue Jan 18 12:41:14 EST 2005 | paulom
I am having some problems with regard to soldering of PBGAs. In the factory had high humidity. Can I make Bake in different temperatures of 125 and 40 degrees? Which the minimum temperature? How many times I can effect bake without damaging the com
Electronics Forum | Thu Mar 03 05:58:34 EST 2005 | vinitverma
Hi, At what stage do you get this error? Can you send me your cad data so that we can simulate the same at our end and probably inform you the solution. Also what is the configuraiton of the machine? How many cameras do you have for component alignm
Electronics Forum | Wed Mar 09 12:34:19 EST 2005 | DasonC
You can use Cp and Cpk to find out your machine performance and accuracy. Some machine had it own software and kit. ie. Siemens. If you are using Fuji and you can visit the AD. on this web, TIMEKEY. Otherwise, you can use a high precision AOI with
