Electronics Forum: paste not clearing from stencil (Page 1 of 5)

Use of solder paste after taking out from cold storage

Electronics Forum | Thu Oct 27 00:45:41 EDT 2005 | pavel_murtishev

Good morning, I can recommend to use solder paste softeners, which can prepare solder paste for printing process. Softeners rise paste temperature by means of pseudo-planetary motion. Therefore, solder paste reaches room temperature during only 15

solder paste control

Electronics Forum | Wed Mar 14 19:32:04 EDT 2012 | swag

You're not clear if you intend to reclaim and re-use the paste from the stencil or not. If not, then you should go to cartridges with an air gun or modify a caulking gun for dispensing paste from cartridges. The paste will last a long time.

Fine pitch paste release problems.

Electronics Forum | Sun Dec 22 06:00:54 EST 2002 | Mark

Hi: Your stencil specs are good; Did you check the stencil thickness? It would be worth a ck since there may be an error from the stencil mfr If the paste is not releasing with good stencil specs, these are possible causes: 1 The paste isn't tou

Re: Solder paste print with two thicknesses

Electronics Forum | Thu Oct 08 22:20:44 EDT 1998 | Dave F

| | | I am trying to find out, what possibilities I have, to print solder paste on a board, when the task is to have 120 Microns thickness for the biggest part of the board (85% of the real estate), and then have 250 Microns of thickness on the rema

Re: Solder paste print with two thicknesses

Electronics Forum | Fri Oct 09 04:08:45 EDT 1998 | Thomas Blesinger

| | | | I am trying to find out, what possibilities I have, to print solder paste on a board, when the task is to have 120 Microns thickness for the biggest part of the board (85% of the real estate), and then have 250 Microns of thickness on the re

What will happen if a sloder paste is used after 24hours

Electronics Forum | Sun Jan 18 09:20:26 EST 2009 | davef

We're not sure of the condition of your solder paste. So, afte 24 hours, if it's: * Unused, in a reclosed container, maybe a week of life depending on the environment * Used, scrap A simple coalescence test can quickly determine the condition of sol

Stencil-PCB Alignment Mehods - Printing process

Electronics Forum | Fri Dec 09 15:10:55 EST 2011 | davef

Can you use the equipment manual as the basis for learning how to use the machine? Each model of printer has different alignment techniques. We don't have a clue of your model type. So, we'll approach the question from its most basic point. Registe

Screen printing Solder Mask

Electronics Forum | Fri Mar 04 15:22:17 EST 2005 | russ

Glad to hear a little success from ya Duckmann! i have stenciled mask in the past and I can tell you that stencils are expensive. They are basically a step stencil, you will need full thickness for the area(s) you are going to apply mask and you wi

solder ball

Electronics Forum | Tue Dec 31 02:04:19 EST 2019 | sssamw

From the picture, I cannot see clearly solder ball violate electrical clearance or cause a short, maybe it is. What I can see is the solder paste has some misalignment although it doesn't printed in solder mask area, but actual position will reduce

Freshman in SMT industry needing advice

Electronics Forum | Thu Mar 04 14:37:44 EST 2004 | cyber_wolf

Try buying your paste in 500g pyles cartridges .You can use these cartridges in a standard caulking gun. Also.. have your paste vendor supply you with some empty jars.(They will usually do this free of charge) Whenever you run a job, dispense paste

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