Electronics Forum | Mon Apr 21 14:43:05 EDT 2014 | emeto
To your first question - Yes you have to take out your paste and leave it on room temperature to warm up(my paste requires 8hours by manufacturer). Second question: If you have controlled room temperature and: If you use jar - up to 5 days your past
Electronics Forum | Wed Nov 19 10:47:37 EST 2014 | grahamcooper22
Probably not all the overpinted paste is flowing onto the joint. You may need a paste with great coalescence properties so it all flows together, and doesn't leave any on the resist. Does the paste drip out the through hole too ? If so it suggests it
Electronics Forum | Tue Aug 01 08:52:53 EDT 2006 | davef
We never changed any thing after moving to imm silver. "Poor release" (paste hanging-up in the stencil holes) could have three main (or combination of) causes: 1 Equipment * Proper aperture area ratio provide better release * Laser cut release bette
Electronics Forum | Mon Oct 07 23:04:05 EDT 2019 | SMTA-David
Hi, I have a semi-Auto paste stencil machine and use laser cut stainless stencil with T4 paste. When I start pasting boards the paste covers the pads and is well defined. Throughout the job we have been having some issues with feeder on pick and pl
Electronics Forum | Mon Dec 06 09:28:11 EST 1999 | Dave F
Glen: So that's this metal? Is it in the area of PTH or SMT solder connections? Etc, Etc. Assuming its near connections where pasted is reflowed ... Reflow defects, bridging: misplaced components, high placement force mushrooms paste, too much p
Electronics Forum | Tue Oct 12 11:47:51 EDT 1999 | Jose RG
Hi, We are in the process of evaluate our solder paste,incoming inspection over the solder paste, stencil requirments: 1- Is anybody using/requiring 1000 Kcps or more on viscosity to your solder paste provider ? Why ?? 2- Is anybody using step stenc
Electronics Forum | Tue Apr 06 22:47:56 EDT 1999 | Cuch
| | I need help in finding solder paste measuring equipment. | | | Cuch: What aspect about paste are you trying to measure? | | 1 Paste qualification? | 2 Incoming quality? | 3 Print volume? | | Dave F | mostly looking for print volume. I am try
Electronics Forum | Thu Aug 29 12:42:39 EDT 2002 | TLe
Problem description: pads of PCB:s seems to "reject" solderpaste. Problem is more easy to identify on larger pads where the paste forms a double layer of paste on the other end of the pad and on the other end there is no paste at all. On smaller pads
Electronics Forum | Fri Sep 13 14:21:49 EDT 2002 | blnorman
Run a test, but in our experience, yes you can reuse the paste. We ran tests on paste that was left on the stencil at the end of second shift, we put the paste back on the stencil the next day on first shift with no problems. You definitely want to
Electronics Forum | Mon Sep 16 07:56:50 EDT 2002 | Yannick
Yes You can reuse solder paste, you simply don't put pback the use solder paste and the new one in the same jar, you don't refrigerate the old solder paste again. And before you begin to use the old solder paste be sure to mix it well. Good luck
