Electronics Forum | Wed Feb 23 20:29:43 EST 2000 | Rex B
ECD is working on some tools in the area of determining the Ideal or most Robust Profile, for a given paste, oven configuration and conveyor speed. Translation of this "most robust profile" into actual oven setting requires more knowledge about the
Electronics Forum | Wed Mar 14 09:07:34 EST 2001 | blnorman
We just ran a study to try to determine this. We exposed the paste to 85% humidity to simulate worst case manufacturing. At various times we removed the paste from the chamber and tested it for tack, solder balling, wetting (copper coupon), and vis
Electronics Forum | Tue Jun 26 12:39:08 EDT 2001 | danial
Our mother company shipped to us a lot of old datecode material and upon running them in the line we experienced non-wetting condition, esplly on the 0402 ( not tombstone ) We have run a dip-and-look test but I guess the method is very subjective as
Electronics Forum | Thu Jan 06 04:20:50 EST 2000 | R Lahat
Vishy, I was in the same boat. I had to run 3 siemens smt lines and get good results. I used the Arena simulation software to program in my 3 smt lines and found it very complicated but can be done. In parallel I took in industrial engineering stude
Electronics Forum | Wed Jun 09 14:51:08 EDT 1999 | Earl Moon
| Does anyone have thoughts on BGA rework. We now use the OK BGA 3000 and now am considering an Infrared machine. Any thoughts? | I've used Pace, Conceptronic and, now, SRT machines. Bottom side IR is OK. Better thermal balance is achieved with hot
Electronics Forum | Mon May 24 11:15:44 EDT 1999 | Clifford Peaslee
Hello All SMTneters, I have just completed an upgrade to the SMTnet web email system. We were having some problems under some unique situations, and they have been resolved. The upgrade also clears the path for the new functions soon to come, like f
Electronics Forum | Tue Oct 13 08:42:38 EDT 1998 | Wayne Bracy
| how to buy a used or new equipments for pcb industry | and a good s/w for design and simulation | Eng\Hossam Alzomor | Egypt | Hossam: Suggest you start right here. Check out the Industry Directory for manufacturers and the type of PCB / SMT eq
Electronics Forum | Thu Apr 11 07:13:09 EDT 2002 | Johan Bergstrom
Don't throw away the tapes ! We use vast quantities of component tape while testing our P&Pmachines. And mind you, we are normally not particular on what values the components have. ( For some tests we don't even need components in the tape. Its just
Electronics Forum | Fri Aug 09 11:58:52 EDT 2002 | sam_b
Just started doing BGA rework. After the removal of the "old" component and after site cleaning/component reballing I am ready to install the component on the PCB. It is recommended to apply flux or paste to the board/component. I would appreciate m
Electronics Forum | Mon Aug 26 09:50:32 EDT 2002 | zanolli
I want to ascertain the oven profile required for through hole connectors with solder pre-forms. I need to get double sided PCB�s made for that purpose. What is the best way to get these PCB�s made to simulate real world conditions?. Should I leave a