Electronics Forum | Mon Sep 11 04:10:46 EDT 2000 | Jim Arnold
I spent 25 years operating my own hybrid shop working with surface mount components, soldering materials and procedures. Dealing all the while with it's associated surprises and problems such as yours. Now-a-days I get paid to investigate and attemp
Electronics Forum | Mon Aug 21 19:38:33 EDT 2000 | Dave F
Eric: I�ll pass on the uV and ammonia, also. Thoughts are: 1 You�re correct that the temperature/humidity mix can be a big driver to latex peelable solder mask cure time, but don�t overlook material thickness. Dispensers put material in a very th
Electronics Forum | Mon Feb 19 17:37:04 EST 2001 | billschreiber
Dear Mary, There are two major programs provided by the Environmental Protection Agency (EPA), Certification and Verification. Basically, the California EPA Certified the Smart Sonic Stencil Cleaning Process and the U.S. EPA Verified the California
Electronics Forum | Wed Mar 14 16:01:39 EST 2001 | Rob Fischer
Not necessarily. Maybe just a little over > sensitive...? > > I though Bill provided > considerable insight relative to the process and > the original question. There was a good answer in > there. I also thought that he provided more > specifi
Electronics Forum | Wed Apr 11 14:05:30 EDT 2001 | davef
No, there's not a really great epoxy product for attaching thermocouples in reflow. Specifically, what's your problem? From Sanders Temprobe verbage ... Adhesives There are two general classes of material commonly used to adhesive bond thermoc
Electronics Forum | Thu Aug 12 09:02:08 EDT 1999 | Gian.D
| Hello, | | Could be that touchup operators are using too much flux. What are you dispensing flux with. Disposable or refillable flux pens are good to have around. | |Good! could you suggest some suppliers name or address or web site or e.mail...
Electronics Forum | Thu Aug 05 06:29:18 EDT 1999 | Graham Naisbitt
| | | We're getting field failures in a high impedance portion of the circuit. Think the unpopulated pc card has contaminates because we were able to grow dendrites by applying a 9 volt battery across the suspected pad, placed a drop of de-ionized w
Electronics Forum | Fri Jul 30 20:11:35 EDT 1999 | Mike Konrad
It is true that the use of saponifiers (and other water soluble additives) will lower the surface tension and aid in under component penetration. It is also true, however, that other specific design features within a batch machine can also aid in un
Electronics Forum | Tue May 25 12:05:53 EDT 1999 | Deon Nungaray
| Just a note about cleaning stencils with a mixture of alcohol and water, especially if you're using no clean paste, it's really not recommended. | | Don't take my word for it, you can check with Alpha or most any other solderpaste vendor. What wil
Electronics Forum | Fri Aug 31 08:45:33 EDT 2001 | 0704494250
Hey peoples, We are working with the dairy > industry out here and they asked us to start > reworking all there boards for them. Of course we > said yes, hehe. Only we didn't know what them > farmers coated them boards with. It turned out to
