Electronics Forum: print quality (Page 1 of 40)

paste quality

Electronics Forum | Mon Feb 10 16:59:57 EST 2014 | hegemon

It is sort of a self answering question if you come in from the solder paste angle. First....start gathering data. Check every day, or every new paste jar, for: Storage conditions (temp), paste expiration date, ambient temp and humidity where yo

Used automatic stencil print recommendations

Electronics Forum | Mon Apr 14 16:41:59 EDT 2008 | ck_the_flip

The added benefit to MPM SP's is that, it forces the operator to look at quality. She won't have 2d or 3d to rely on. Also, it places heavy emphasis on a good setup.

Used automatic stencil print recommendations

Electronics Forum | Fri Apr 04 18:08:26 EDT 2008 | comatose

We are a small OEM that runs a high mix/low volume environment. Typical runs are a couple or five hundred boards, one or two products per day. Currently, we are using a Quad DeHart SLC-20 semi-automatic stencil printer. (alignment is manual, printing

Flux dip or solder print for CSP

Electronics Forum | Tue Jan 31 09:41:06 EST 2017 | emeto

If there is no specific quality reason, stay with paste. More processes you add, more points of failure. They don't need a lot of paste to get attached to the board. The ones I used were 8mil round apertures, so I did cut 1:1 on a 3 mil coated stenci

How to improve the solder quality of QFN?

Electronics Forum | Fri Jun 24 07:02:35 EDT 2005 | davef

Problem 1: Solder shortage * Stencil aperatures [except the heat slug] should be 1:1 with the board. * Stencil should be 5 thou thick laser cut. * Board should be 1:1 with the component * Print should look good. Problem #2: Bad connection between p

Fighting solder beads

Electronics Forum | Mon Mar 20 00:48:22 EST 2006 | pavel_murtishev

Good morning, In this case separation speed doesn�t affect print quality. Separation speed decrease makes print quality the same or worse. Apertures still remain blocked. Any ideas? Thanks. BR, Pavel

Re: Adhesive Dispenser Vs. Screen Printing Adhesives Pros and Cons

Electronics Forum | Tue Oct 03 09:13:42 EDT 2000 | jarnopy

Hi This is what i think: 1. Screen printing is fast and dispenser is quite slow 2. Quality is poor on screen printing. Quality is very good on dispenser (dispenser must have screw+pressure function). 3. Screenprinter (automatic) and dispenser (auto

Solder Paste Volume

Electronics Forum | Tue Apr 10 12:56:23 EDT 2001 | slthomas

Didn't you hear? Fendelaz went out of business and sold the rights to the Magnaplancil to Amahlmahay. Sure, all the standard variables still affect the print quality (aka registration and volume) but if the machine controls everything but paste di

pasteprinting D.O.E.

Electronics Forum | Tue Jun 04 18:30:49 EDT 2002 | arzu

We want to perform a "design of experiments" session to determine the optimum settings for our pasteprinter.We will design a stencil with decreasing aperture-sizes to make it measurable where the printing stops. The result should be a measureable pri

Re: Equipment comparison

Electronics Forum | Fri Jan 14 11:39:32 EST 2000 | Jason Fang

Can anyone describe the different solder paste printing quality for fine pich by DEK265 and MPM2000 printer?

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