Electronics Forum | Fri Mar 21 20:21:41 EST 2003 | Grant
Hi, I can verify that, and we have done 2 or more reflows with prototypes, using vapor phase reflow, and because there is no oxygen, the result is good, and you cannot tell the difference between the first reflow, and the 3rd. We are getting a vap
Electronics Forum | Wed Mar 19 20:40:27 EST 2003 | arminski
Vapor Phase process can do reflow from 4 to 5 times!
Electronics Forum | Thu Mar 15 12:33:50 EDT 2007 | ck_the_flip
To do a profile at most companies, if you don't have a scrap board handy, you'll use the already-soldered board that's already been through ONE reflow cycle. You spend time attaching T/C's with the aluminum tape - after all, the prep-work is half th
Electronics Forum | Fri Dec 16 10:45:41 EST 2005 | campos
Hi,, My doubt is regarding to the Reflow Time, I mean, in a 5 or 7 zones oves, how long the board should stay inside the oven to complete the soldering cycle? 4 min, more, less...Should I keep low temp until peak for a long time or high temp in shor
Electronics Forum | Thu Feb 07 09:07:10 EST 2002 | fmonette
Dason, Please be aware that weight gain is only a very crude estimate of the component moisture content. This is only accurate when the moisture is uniformly distributed inside the component (which is actually never). This measurement is usually no
Electronics Forum | Mon Jul 10 04:16:03 EDT 2006 | dougs
Hi, We have a new product coming soon that has a fair number of PTH sockets and headers. I was thinking that it would be good to use intrusive reflow on some of them to even up cycle times between SMT and hand insertion, however, when i called t
Electronics Forum | Thu Dec 16 15:00:20 EST 2004 | glaucon
Simple differences. Both processes require a very similar machine platform, controlled motion, vision fiducial recognition and alignment of a substrate (PCB or hybrid ceramic) to the "image", the image being either a stencil (hence stencil printing)
Electronics Forum | Thu Mar 27 16:14:24 EDT 2008 | mikesewell
If you get into a discussion with a Lean guy/gal, takt will be the rate of customer demand. People often use takt & cycle time synonymously...FWIW
Electronics Forum | Mon Mar 31 07:58:50 EDT 2008 | vinitverma
Assuming the following: L=Process Length of the oven t=Desired profile time in mins(depends on the paste/glue used) l=PCB length l1=gap between consecutive PCBs Then the total no. of PCBs per hour is" (L*60/t)/(l+l1) Vinit
Electronics Forum | Wed Apr 18 08:14:20 EDT 2007 | davef
Silver palladium termination * AgPd-terminated capacitors are designed for conductive adhesion. Reflow or wave soldering is not recommended. [EPCOS Multilayer ceramic capacitors, Soldering directions, October 2006] * CONDUCTIVE EPOXY BONDING. Epoxy c
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