Electronics Forum | Thu Jan 28 08:58:10 EST 1999 | Peet
| | i am working with the noclean process and getting white residues on the bottomside of the board probably due to the | | wave soldering flux.i am using a no-clean solder paste and a noclean wave solder flux.The boards passed the accelerated tempe
Electronics Forum | Thu Aug 13 21:58:14 EDT 1998 | Alpha Guy
When things go wrong (see below) it can usually be attributed to a communication problem. This is exactly the issue with this case. A meeting has been held and corrections have been made with no hard feelings. However, another call rather than a
Electronics Forum | Tue May 19 21:02:20 EDT 1998 | Steve Gregory
Hey there ya'll... I was reading the messages from Earl asking where he could upload some articles he wrote, and I was asked how one goes about putting a image in the messages here... Ya'll see down at the bottom where it says; "Optional Ima
Electronics Forum | Tue May 19 12:29:59 EDT 1998 | Richard Jackson
| Richard, | You may be encountering solder paste contamination | on the assembly during the printing process. Solder | will reflow on tin/lead plated lands therefore invisible. | If you are washing the assembly prior to inspection | then you are
Electronics Forum | Tue Apr 14 09:01:36 EDT 1998 | Justin Medernach
| We are having some difficulty soldering a 240 pin Altera device. We use Alpha WS-609, a very generic profile for that solder paste, and a 6 mil stencil with laser cut apertures (1:1 ratio). This is a 20 mil pitch device (aperture size is 10 mils X
Electronics Forum | Wed Mar 05 22:35:40 EST 2003 | MA/NY DDave
Hi Just a few notes below on this forum the same thing was discussed. It probably would have been better to update that note rather than start a new tread. Hey it makes it easier for all or us and YOU. Check the note out, and also check the archive
Electronics Forum | Fri Sep 24 11:08:13 EDT 2004 | davef
We're not sure what you mean by temperature sensitive components. From an assembly process stand-point, every component we use is temperature sensitive to one level or another. More specifically, some of our products use polyphenylene sulfide (PPS)
Electronics Forum | Wed Apr 27 01:20:22 EDT 2005 | Frank
Are you sure about your dimensions? .45mil ball diameter and .8mil pitch, and a body size of 16x8mils is really, really tiny. I assume you mean millimeters and not mils? 1mil = 0.0254millimeters If your stencil is 5mils and your ball diameter is
Electronics Forum | Sun Nov 19 16:37:06 EST 2006 | finepitch
Hi RJK, 2.5 years ago, I pointed out the exact same thing you did now. (please see the below link) http://www.smtnet.com//forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=7076&#Message28261 I am a competing brand's rep for 3 years, but p
Electronics Forum | Thu Jan 04 08:33:08 EST 2007 | davef
You cannot determine foil thickness from its weight per area, because of the significant variation in the density of electrodeposited [ED] copper. But people don't care. They do it regardless. (oz/ft2)||(mils)||(mm) 1/2||0.7||17.8 1||1.4||35.6 2||2
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