Electronics Forum | Tue Jan 28 10:05:51 EST 2020 | dontfeedphils
What sort of foils are you talking about? Handling VG stencils isn't exactly tough, they're a bit more flexible than standard tube frame, but nothing horrible. Pair it with a good storage solution and you're set. I'm able to store 165 stencils i
Electronics Forum | Tue Oct 05 02:47:01 EDT 1999 | Eric
| Hi everyone, I need some help on the whole process of double sided surface mount. We have been doing surface mount for about 3 months and we're getting ready to take on our first doule sided board. I just need some step by step process regarding so
Electronics Forum | Fri May 21 10:16:31 EDT 1999 | Parvez
Dave, i tried reflowing bare boards with only solder printed on em and no component placed. we still got voids as same as when components were placed. so atleast one of that theories(voids due to component/component placement)could be considered to b
Electronics Forum | Thu Aug 16 10:49:35 EDT 2001 | JohnW
Dave, we try and keep the temperture that a BGA is exposed to at wave solder below 150 deg C. At this temperature it's unlikely that you'll get near to starting secondary reflow of the device or that you'll grow any significant amount of intermetall
Electronics Forum | Tue Mar 02 10:19:41 EST 2004 | loz
Hi all, we have recently seen a design that consists off a QFP100, pitch at 25". Also in the centre of this footprint is a FBGA165 footprint, pad size .4mm @ 1mm pitch. We have been informed that we will fit the QFP. I want to remove the BGA pads fr
Electronics Forum | Tue Mar 04 08:15:37 EST 2008 | jola
Our profile tempatures in the owen is: Preheat 6 zoones 135,155,165,175,185,195. Peak 3 zoones 255,245,240. We do check our profiles with test probs and a "Surveier" temrature recorder every 3 month and we are within the paste supplyer recommendation
Electronics Forum | Thu Apr 07 11:39:48 EDT 2011 | remullis
My oven profile is 155,160,165,180,220,245,255,227 Cooling Zone 132/92. This is a 8 zone CV820 Technical Devices oven. My assy profile using Datapaq Q18 - Base on one probe feedback - Positive slope (7.09), Pos Slope Time (.45), Rise Time (1.17), Me
Electronics Forum | Tue Jul 21 10:38:54 EDT 2020 | artyvesna
Thanks a million. We are quite restricted with available length for the oven (about 5meters/16.5ft).Throughput itself is not so much of a concern, it is ability to be precise with thermoprofiles together with some future proofing (extra capacity) tha
Electronics Forum | Thu Aug 23 04:17:10 EDT 2007 | hannua
In the VIOS file between lines &B.MNT and &B.OPT you will find the index number (in hexadecimal, four digits just in front of the reference designator in each line) into the component and feeder table. The feeder table entries are designated with &F
Electronics Forum | Sun Oct 10 00:40:42 EDT 1999 | John
| I'm searching for a source for surface mount socket savers that accept a hand test socket (Yamaichi, Nepenthe etc...). Barring availibity of an SMT socket saver does anyone know a good technique for soldering socket savers into a .250" thick, 20+ l
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