Electronics Forum | Wed May 08 09:40:33 EDT 2002 | Hussman69
One thing most over look is the time between the last reflow and the second print. You don't want to print on a hot board.
Electronics Forum | Wed May 15 09:46:15 EDT 2002 | davef
Francois: How much moisture does a typical reflow cycle remove from popular SMT packages?
Electronics Forum | Wed May 15 21:45:31 EDT 2002 | ianchan
Hi mates, any production floor controls that are efficient and effective? to control MSD. am talking about practical shopfloor "good mfg practices".
Electronics Forum | Thu May 16 15:31:50 EDT 2002 | cebukid
Sounds like this 'Hussmann ' character is taking credit for my findings again. You'd "fit right in" where I work. Heh he hehe hehe.
Electronics Forum | Mon May 20 11:58:41 EDT 2002 | JoAnn
Greetings! The SMTA will be offering a course on this topic at SMTA International in Septmber. If you want a complete overview of this course please check out http://www.smta.org/smtai. Hope we might get to see you in September. JoAnn
Electronics Forum | Fri Sep 07 09:19:44 EDT 2001 | Hussman
Jean, A lot depends on your process. can you add a dot of adhesive after screen printing and before placement? This works well for larger heavier parts. A second suggeestion is to reprofile your board. Try keeping the bottom side cooler. I do t
Electronics Forum | Thu May 16 11:37:13 EDT 2002 | fmonette
My company offers a simple and cost effective control system for MSDs on the factory floor. It is a turnkey solution to comply with J-STD-033. If you want more information feel free to contact me offline. Francois Monette Cogiscan Inc. Tel : 450-53
Electronics Forum | Mon Mar 26 20:04:04 EDT 2007 | Amy
Yes, I have tested some boards, and found that most QFPs which near the via will have the higher temperature. One of my customer requirement is to have the temp less than 200 deg C for top side. We were using the hi temp wire to solder the QFP's for
Electronics Forum | Mon Mar 26 07:19:09 EDT 2007 | realchunks
Hi Amy, 183 degrees C if it's 63/37 paste. For wave solder, your guide should be your flux. Follow your flux mfgers suggested pre-heat. Most mfgers go by top side temps. Your wave solder pot temp is determined by your bar solder mfger. The
Electronics Forum | Tue Sep 11 09:13:01 EDT 2001 | davef
Like most things in electronic assembly, this is not astrophysics. People have pasted boards, placed components, turned the board up-side down, run the board through a reflow oven, and generalized about which components: * Fall off the board. * Don
