Electronics Forum | Fri Dec 10 08:42:37 EST 2004 | mattkehoe
We had some bad experiences trying to work with soldermask defined BGA pads. If the opening in the soldermask is right to the edge of the copper/pad without a space it can leave reside on the pad and nothing will stick to it. See http://www.sipad.com
Electronics Forum | Sat Feb 05 14:51:49 EST 2005 | etienne
One important thing to look at, when buying an AOI is the False Calls Rate, along with tact time of machine to inspect the PCB. Obviously, many machines can do the the work....but it's also true that each machine differ from the way it do the work. S
Electronics Forum | Wed Feb 16 21:26:11 EST 2005 | Mrduckmann2000
Well, I have not had a chance to run my experiment yet. I hope to have the wave solder machine to myself on Friday morning. I will let you know. I am hopefull from what you and the others have said that it will work and we can reduce our touch lab
Electronics Forum | Mon Feb 21 05:59:40 EST 2005 | aj
All, I know this is not Production/Process related but I decided to post it just to find out if this has happened elsewhere. We have a SMT Operator who has worked at SMT for over 6 years now,he has recently developed some sort of Skin problem on hi
Electronics Forum | Thu Mar 03 11:49:23 EST 2005 | Rob
Doesn't that depend on your company's culture & management style? We (and I feel slightly dirty using this word)empowered our end of line inspection/touch up people & trained them to know what is good or bad - so issues can be immediately fed back,
Electronics Forum | Sun Mar 06 20:12:53 EST 2005 | mrduckmann2000
Russ, I didn't use a stencil for my experiment because I was not sure that the solder mask idea would work. Now that I have treid a few experiments I feel dangerous! LOL. I will not have to use a step stencil, I will just mask all the parts. Lik
Electronics Forum | Mon Mar 07 09:44:49 EST 2005 | anonomous
The machine sees a magazine, but with wrong number. somehow one (maybe more) wire from the magazine bus does not reach slot 3, as the other slots work, there is probably not a short, as the magazine bus work for other slots, the problem is probably i
Electronics Forum | Wed Apr 20 18:13:32 EDT 2005 | greg york
With twenty five machines working with the LFB227/S on our little island it does seem to work well. Wetting is good compared to Tin/Copper and flow is comparable to 63/37. Biggest problem sticking 3 - 4 % Ag in a solder ignoring the patents and royal
Electronics Forum | Fri Apr 01 11:04:35 EST 2005 | chunks
A company called BEST makes a thing called Stencil Quik. It's like a stencil that sticks onto your board, you squeegee paste, place component/board and reflow. The Stencil Quik remains on the board. It prevents shorts and in your case could provid
Electronics Forum | Tue May 31 17:01:58 EDT 2005 | mrduckmann2000
Steve, Thise old Quad's will work just fine if you have low qty's to build. I would take them any day over a huge new Fuji line that is only good for large qty runs. We presently have a line that is coming up on 10 years old and it works just fine
