Electronics Forum | Fri Nov 26 09:13:10 EST 1999 | Wolfgang Busko
Jeff, Ted, Stefano What Stefano is saying sounds reasonable. With entry-level systems its always a struggle to get sufficient results. The operators golden hand is needed. Better controlled advanced dispensing systems should do the work, unluckily I
Electronics Forum | Mon Nov 15 21:35:50 EST 1999 | Dave F
Bob Bob: Fortunately, you found this before you built-up a lot of product. Some thoughs and other drivel: 1 Use IPC-TM-650, Method 2.4.8 for copper peel with a Instron machine. Typical pad peel strength requirement for FR-4, 2 oz. copper is: 6 l
Electronics Forum | Tue Nov 16 09:44:18 EST 1999 | - bobar
Ken, The technology you are referring to is also known as return-to-web. This panelization method involves a hard tooled perimeter die and a press equipped with an air cushion. The PCB circuit is punched out and then inserted or "pushed" back into
Electronics Forum | Mon Nov 22 11:16:04 EST 1999 | Boca
Chris, Some ramblings- Your choice depends on factors like which defects you're looking for, bugdet, quality inspection philosophy, high or low mix environment, sample sizes or 100%, and so on. Are you going to test 100% of the product coming off t
Electronics Forum | Fri Nov 12 08:55:43 EST 1999 | Wolfgang Busko
Hallo Edmund, what does dull mean in your case ? It�s nearly impossible to say something about it without more information. Dull or shiny isn�t a clear or better no indicator for good or bad. Some companies add other metalls to the solder to get rid
Electronics Forum | Fri Nov 12 10:00:42 EST 1999 | Dave F
Edmund, following-on from Wolfy: Back in the old days, anyone who could spell "sodder" considered "bright and shiny connections" GOOD and "dull and grainy connections" BAD. Now, "dull and grainy" connections can be either GOOD or BAD, depending on
Electronics Forum | Wed Feb 13 18:53:43 EST 2002 | davef
You know Sherry, it's sales types like YOU that give all the other sales types a BAD name. * Since you are bright enough to understand that this thread is two and a half years old, why aren't you smart enough to not open a thread that stale? You�r
Electronics Forum | Thu Nov 11 10:49:13 EST 1999 | John Thorup
Hi Jim All the major players make soldering iron testers that will test temperature, stability, ground leakag and other parameters. WellerWA2000 Hexacon G210-G310 Edsyn MS410-MS412 Bonkote MCA700 Pace P/N8001 and others There is no particular reason
Electronics Forum | Thu Nov 11 14:13:57 EST 1999 | Dave F
Thomas: From what you're telling us, you seem to be thinking correctly: 1 Paste should not spread appreciably in preheat 2 Something has changed, because you've not had this problem, until recently Two things to consider: 1 Has any thing changed
Electronics Forum | Tue Nov 16 10:53:25 EST 1999 | Scott Cook
Ok, help me out here guys and gals...... I have never understood the concept of scoring on mixed technology or SMT boards. It is quite obvious to me that the potential for SMT solder joint damage through the mechanical stresses of breakout are high.
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