Electronics Forum | Wed Jun 03 09:48:47 EDT 1998 | Gary
| I have a component that is glue cured on the bottom of a pcb. The component is a 1206 size jumper. It is made up of iron/nickel alloy. The problem I am having is that the part will fall off the board during wave solder. Is the component not abl
Electronics Forum | Thu Aug 16 13:57:30 EDT 2001 | Hussman
Ouch! I thought that went away 12 years ago! Visual inspection to IPC standards should be used. Pulling and pushing leads is not even close to being consistent. I bet your customers or ISO auditors have never seen this practice. If they must pul
Electronics Forum | Mon May 27 18:51:17 EDT 2002 | harotec
Hi Yngwie Have you got a reflow oven yet. If not, forget about complicated profiling with test runs or reflow trackers. We've got a nice oven with integrated temperature-feedback system. You build any profile you want and the oven will adjust its hea
Electronics Forum | Fri Oct 18 17:47:37 EDT 2002 | russ
What is the determination of poor soldering fails pull test, non-wetting, visual)? I have never heard of an SMT component that has leads higher than the body of the component. Refer to IPC 782 3.6.1.7 it provide the guidelines for SMT standoff heig
Electronics Forum | Wed Mar 12 17:53:52 EST 2003 | davef
O' Connor Haaa. It's usually the design guys that foist the problems onto my desk. Now that is one shrewd process type that you have working at your company!!!! Can I have his / her name and number to get some tips on the technique that he / she
Electronics Forum | Mon Oct 13 14:30:56 EDT 2003 | jsherrow
Our customer is starting to see some solder joint > failures during their extensive testing > proceedures. Specifically with an SMD/DIP device > that has a very small foot in relationship with > the pad on the PCB. (By SMD/DIP device I mean a >
Electronics Forum | Fri May 28 13:09:42 EDT 2004 | Glenn
Thanks for the advice regarding the ultrasonic spray fluxer ... we are currently using Delta Wave 6622c wave solder machine with dual spray heads (the ability to use two completely different kinds of flux chemistries). It's a great system that works
Electronics Forum | Sat Sep 25 08:59:59 EDT 2004 | davef
IPC-HDBK-830, Guidelines for Design, Selection and Application of Conformal Coatings says: A conformal coating may have several functions depending on the type of application. The most common are: * Inhibit current leakage and short circuit due to h
Electronics Forum | Tue Jul 12 09:51:42 EDT 2005 | russ
We use the JBC irons with and without the "leadfree" tips. We really have not noticed much difference between the standard and the lead free. The lead free tips do last a little longer but the tips are somewhat deformed by the extra plating. As f
Electronics Forum | Tue Jun 06 12:42:24 EDT 2006 | samir
Wave flux, although I've seen it used successfully in my past life, is not such a good idea to use as a rework/touchup flux. Wave flux needs to be heated to certain activation temps which won't be repeatedly achieved with a manual soldering process.
