Electronics Forum | Thu Jul 22 07:52:37 EDT 2004 | Chris L.
Hi Grant, The purpose for allowing the solder paste to reach room temp before production is to reduce the amount of water absobtion from the air. (e.g. a cold glass of water "sweats" on a humid day)The purpose for mixing is to make the viscosity more
Electronics Forum | Thu Jul 16 15:22:21 EDT 2020 | jmelson
Can anybody give me some general info on the QSA-30? Is the management computer built into the machine, like on Samsung CP machines, or just a separate computer? If separate, how does the management computer communicate with the motion computer? (H
Electronics Forum | Mon Jun 19 21:37:14 EDT 2000 | Dave F
Mike: Look a the Hadco DFM manual ( http://www.hadco.com/ ) Yano if you�re lookin� for uniformly smooth (not silky smooth) board edges, have you considered scoring to separate your boards? Scoring has: * Minuses (straight lines only, stress on so
Electronics Forum | Tue Jun 01 16:10:44 EDT 2004 | raylawre
Would like to know what people are doing to differentiate their lead and lead free environments in their production areas. How do you keep it separated? What, if any, visual colors do you use to indicate a lead free area? Gray? Green? For instance, w
Electronics Forum | Tue Nov 22 14:59:50 EST 2005 | Supergilligan
Date: November 22, 2005 10:46 AM Author: Rob Subject: Inner Layer Separation from Barrel Wall - Too Much Heat? No, come to think of it I don't think you did. Well, at least if you discount the last 5000 times. Sorry, I'm exaggerating only 4952 t
Electronics Forum | Fri Dec 02 09:51:05 EST 2005 | whippingpost
I have an assembly that uses several different BGA packages. During troubleshooting we have found that some of the balls in the corners of the BGA's are separated from the underside of the package. The PWA is approx 10�x10� and the components vary fr
Electronics Forum | Mon Jun 26 09:46:29 EDT 2006 | jem
My company also uses the TM8C (all feeders) with the same problem as Paul. The 0402's do exactly the same as he desribes.The SMT operators are correcting the placement data all the time when using 0402 but to no avail. Chris What do you mean by the
Electronics Forum | Mon Aug 21 10:58:34 EDT 2006 | davef
Pulsar Solder Saver: "The Solder Saver is a unique, handheld tool that scoops dross directly from the surface of the solder wave pot. The dross oxides are instantly separated from the solder using a unique high-speed rotary process system. The newly
Electronics Forum | Mon Jan 15 12:42:57 EST 2007 | realchunks
CL pretty much hit the nail on the head. But also remember that solder paste will not go "bad" if not kept cool. It is not a fruit or perishable item (sorry guys, it's not). It's just metal and flux. The only reason they want you to keep it cool
Electronics Forum | Tue Jun 19 08:35:24 EDT 2007 | pavel_murtishev
Dear Sami, Consider doing DOE it the printing speed is a point of concern. A few questions: 1. Which glue do you use? 2. What are the printing process parameters you have entered into your DEK? Could you list them here (front/rear printing speed, s
