Electronics Forum | Thu Jun 01 21:54:00 EDT 2000 | Dave F
Jeremy: Standards: � A-600 talks about percentage of solder mask loss allowed, according to the location (eg, laminate, bare copper, gold or nickel, melting metals) and equipment class. � A-610 talks to "Solder Resist Coating - Voids & Blisters" by
Electronics Forum | Tue May 23 20:35:03 EDT 2000 | Dave F
Ashok: Our procedure allows connecting a resistor of less than 1 Mohm between the mat and ground, if safety codes and/or other authorities require inclusion of a series resistor (to eliminate the safety hazard of touching a high voltage circuit with
Electronics Forum | Thu Mar 02 21:09:22 EST 2000 | Dave F
Doug: To remove paints, we've tried a bunch of stuff like messy, hazardous chemicals (ie, methylene chloride, xylene, toulene). We've blasted (erzat been blasted???), like Stu says. We used etching pens. Auuuurgh!!! Now, we paint over them with
Electronics Forum | Mon Mar 19 11:44:22 EST 2001 | sac
My company is a small to mid size contract manufacturer, and relatively new to the business. I was wondering if anyone could tell me what a typical warranty policy is for PCB assemblies. In an effort to get needed sales, I am afraid our sales departm
Electronics Forum | Wed Nov 24 11:38:42 EST 1999 | John Thorup
Hi Wade As Steve says - are you sure that the lead is in solution? Particulate lead like solder balls is much easier to remove. The answers are going to depend on total output in gallons, maximum flow required and what has to be removed. If you're
Electronics Forum | Mon Oct 11 12:29:01 EDT 1999 | John Thorup
| We have three buckets filled with leftover solder paste from our screen printing process. Kester has informed me that they no longer take paste, but only dross and pot dumpings. Does anyone know if there's someplace I can recycle this, or am I go
Electronics Forum | Tue Aug 10 11:44:20 EDT 1999 | John Thorup
| Does anyone use reflow profilers? Are they a good investement or is trial and error sufficient? | | Does anyone have any suggestions on profiles to try? Thanks. | Danielm I would hazard a guess that most if not all of us production folk do. I c
Electronics Forum | Wed Apr 01 11:08:03 EST 1998 | Bill Schreiber
Smart Sonic's 440-R SMT Detergent cleans all types of solder paste, wet SMD adhesives and post solder flux residue from misprinted PCBs, stencils and tooling. 440-R SMT Detergent is non hazardous and is certified by the Air Quality Management Distri
Electronics Forum | Mon Jul 29 17:07:10 EDT 2002 | dsorg
We remove the fiducials by pushing sideways on them with a hot soldering iron. The copper pad separates from the FR4. We collect them and dispose of them. We have thought of disposing of the rail material with the boards, but our recycler doesn't w
Electronics Forum | Thu Feb 13 23:23:30 EST 2003 | jkhaiar
Hi Dave F As usual an interesting issue. Employees working in hazardous environments and critical tasks were the safety of the personnel and the jobs are at risk; they should not be allowed to use any communication or entertainment media. Such means
