Electronics Forum | Wed Jun 16 07:01:26 EDT 2021 | tommy_magyar
Hi Edgar, I am not aware of any standards either, but from own experience can tell that if there are boards going through oven with PPM between 1500-2000 the solder will be dark (unaesthetic) although some of our customers accepted them if they were
Electronics Forum | Wed Dec 08 18:13:43 EST 1999 | tom
several days ago iwas able to get on to view the smt terms and conditions at smtnet.com/library/content/terms1/index.cfm but now i can't seem to get this page it's a dead link help me please this is the reason i signed up and now i p.o thanks tom te
Electronics Forum | Tue Nov 09 13:20:21 EST 1999 | Dave F
Chuck: Try: 1 WWW.JEDEC.ORG 2 Search "surface mount package" which gives you ... MO-Index INDEX OF MO OUTLINES IN PUBLICATION NO. 95 BY-FAMILY INDEX OF REGISTERED MICROELECTRONIC (MO) OUTLINES (contains description of the content of each file) Goo
Electronics Forum | Tue Dec 19 16:26:24 EST 2006 | samir
Grant, Newer lead-free fluxes have 6%-10% solids content - more activator, therefore leave more "visible" residues. Old technology tin-lead fluxes got down to as low as around the 4%-6% range (I'm going off memory, so me might be wrong)... You'll
Electronics Forum | Fri Mar 11 18:30:50 EST 2005 | davef
Russ: In December 2003, the European Commission released the following statement: �The commission services have prepared a draft Commission decision establishing maximum concentration values pursuant to Article5(1)(a) of Directive 2002/95/EC. The pr
Electronics Forum | Fri Apr 10 09:59:13 EDT 2020 | spoiltforchoice
> We unfortunately use GERBER data to digitize <BR> > boards more than any CAD. We are CM and many of <BR> > our customers do not provide CAD. With some <BR> > Legacy products, we still use 274-D Gerbers
Electronics Forum | Fri Feb 20 15:07:31 EST 2004 | agp
I agree with Jay. The paste will reflow first before the balls. The main reason is the flux content and the dimension of the spheres.
Electronics Forum | Tue Mar 19 11:31:02 EDT 2019 | bruce_mackean
Hi there. Sorry I haven't responded sooner. The video I posted was a very preliminary trial that I developed as an option to my BoMCompare application. BoMCompare is a tool that can compare Bills or Materials of various file formats (xlsx, csv, txt,
Electronics Forum | Fri Apr 18 14:25:51 EDT 2014 | horchak
what is the technology? Is there fine pitch, double sided, number of layers, lead free? If the pcbs are not of the highest quality you may be set up for failure with no clean process. Couple things to look at is your paste flux content versus medal
Electronics Forum | Fri Jul 24 07:43:56 EDT 2009 | davef
Your customer is correct. You are doing something wrong in your hand soldering process. Solder balls are a process indicator. Areas to assess are: * Moisture content of the bare board * Thickness of the copper plating in the through holes * Temperatu
