Electronics Forum | Tue Jul 18 16:40:09 EDT 2006 | dphilbrick
We have a system where when we set up the line to run a job before the first part is placed an auditor verifies we have all the correct parts loaded on the machines in thier correct locations. We then run a first article. The board is inspected to in
Electronics Forum | Tue Jul 18 18:53:23 EDT 2006 | Mike F
Is it showing up after wave or reflow soldering, or after hand soldering? If the delamination or blister bridges between traces you have the potential for a short circuit between those traces. A delamination might be repairable, but in most cases i
Electronics Forum | Wed Jul 19 09:21:54 EDT 2006 | Chunks
That's like asking who's Mom is the best Mom. Your main goal in choosing a screen printer is based on several things: Size for your boards. Speed of your line. Board layout in ref to edge clearance / use of breakaways. Post inspection 2D/3D of paste
Electronics Forum | Wed Jul 19 12:25:47 EDT 2006 | Rob.
Hi Fabione, I'm not being funny, but how did you come up with that choice of machines? There is no way that these set ups are equal in speed or accuracy in the real world. I think you should go back to the drawing board & start again, and depending
Electronics Forum | Thu Jul 20 09:21:24 EDT 2006 | fabione
My actual line(europlacer928+europlacer400)(7500-10000c/h)it is too much slow in the change of production(3 change to day) My choice is mydata as principal line (hight changes low volume) and old europlacer for my 8 product with max volume. or Siemen
Electronics Forum | Thu Jul 20 11:28:40 EDT 2006 | Rob
Mydata are OK, but they will not last as long as the Siplace if running the same volume. They are easy to programme, change over & upgrade - they are very good entry level machines. One thing to remember is that they make use of large scale gang pi
Electronics Forum | Thu Jul 20 19:51:40 EDT 2006 | darby
Are you trying to tie someone to an agreed wastage level or are you being tied? What machines are you talking about? What components are you talking about? The only acceptable wastage level is zero: but you can't get to zero until you've had some was
Electronics Forum | Wed Jul 26 16:08:29 EDT 2006 | ev
My focus has moved to the X motor itself. The one common factor in this paricular problem has been the time of year. The day was a particularly hot day with high humidity. Even though there is a "Xfan" connection on the PIAB board I do not believe th
Electronics Forum | Fri Jul 21 03:51:06 EDT 2006 | Rob
Hi CKH, Here's some things to consider: 1) Moved by obstruction in/entering oven, such as nitrogen skirts 2) Incorrect air pressure/air leak in oven (large surface area on component) 3) Reflow temperature too hot & electrolyte/air in cap is expandi
Electronics Forum | Fri Jul 21 10:04:07 EDT 2006 | russ
Well, normally this is from a misplace for some reason and the part is bouncing around the PCB, it should have been on some pads somewhere, Do you know if this assembly also had "missing" parts? Could be temp loss of vacuum during xy seek and part f
