Electronics Forum: good (Page 211 of 1214)

Lead-free solder

Electronics Forum | Wed Apr 14 12:27:49 EDT 2004 | pjc

try Indium Corp's SMQ230. http://ncsmq230.indium.net/ Peak "on board" temps of 229C with good wetting have been obtained.

qfp reflow problems

Electronics Forum | Fri Apr 23 12:47:29 EDT 2004 | barry

I have increased my peak to 220, and Flow is better, but it still not quite a good fillet all around. The solder tends to kinda "bunchup" at the toe of the lead. If part is Pb free, would this affect adhesion and or flow?

Minimum Efficient Production Volumes

Electronics Forum | Mon Apr 19 19:41:46 EDT 2004 | Jack

Sorry...my ability to properly compose english prose fails me at the end of the work day. ========= My question should have read: "Does anyone have a good rule of thumb for determining the minimum efficient production volume for a typical SMT line?

Immersion Silver Reliability / Peelable mask

Electronics Forum | Sun May 30 01:17:02 EDT 2004 | johnwnz

Hmm, the type of thing you'd expect the PCB vendor to warn you about or test prior to changing their process!.. fun & games. So are they good donuts?

BGA rework

Electronics Forum | Thu May 06 18:48:22 EDT 2004 | Dreamsniper

SUMMIT 750. My yield is 75%-98%. And they all depend on the pad design, stencil, paste, operator, thermal profile, etc. I have 98% yield on some of our products with good pad design. Process is easy to control. Dreamy

MPM screen printer

Electronics Forum | Sat Sep 17 14:01:43 EDT 2005 | johnw

Hi all contact the guys at ALTUS GROUP these guys are all experts on mpm printers they are all x MPM service engineers they hold a vast stock of spares also I use these guys all the time and are good to deal with WWW.ALTUSGROUP.BIZ

MPM screen printer

Electronics Forum | Tue Sep 20 04:14:08 EDT 2005 | Rob

Yes, and you ruined all that good work by sending us Billy Ray Cyrus. (Don't think we aren't greatful that we're wearing levi's instead of lederhosen - it's never particularly warm over here!)

Board Support for Double-Sided PCBs

Electronics Forum | Fri Apr 30 13:49:52 EDT 2004 | Chris Lampron

We are using these and are very happy with the results. http://www.production-solutions.com/Inline.htm Good Luck Chris

Moisture Sensitive Devices

Electronics Forum | Thu May 06 08:15:57 EDT 2004 | Christopher Lampron

Hey GAZ, The specification that addreses MSD's can be found on the JEDEC website and is JEDEC-STD-033A. I think this will answer all of your questions. Hope this helps Good Luck Chris

Fuji Pick and Place Machines

Electronics Forum | Wed May 12 01:40:56 EDT 2004 | Grant Petty

Hi, Thanks for all the advice, and we are looking at everything we know of, but have not had much info back from anyone at Universal yet. We have been interested in their machines too and are going to go to a trade show before we decide. However I


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