Electronics Forum: misprints (Page 7 of 24)

how to remove solder ball on PCB

Electronics Forum | Tue Sep 23 20:56:08 EDT 2008 | davef

For additional information, download IPC-7526 - Stencil and Misprinted Board Cleaning Handbook http://www.ipc.org/html/IPC-7526.pdf

Screen printing

Electronics Forum | Fri Nov 21 12:26:47 EST 2008 | karkanov

Hi everyone!! Is anybody have a chart or rule or standard for misprint. What I mean is if there is a way of saying if my print for some reason a switch 1%, 5%, 10%, etc, off the pad that is not acceptable. Thank you Yannick

lead free finish

Electronics Forum | Thu Jan 29 16:48:49 EST 2009 | slthomas

Looks like a time/temperature problem to me. However, there are a lot of solder fines surrounding the pads in one photo that go beyond what I'd expect from inadequate TAL. Is it possible that the board was misprinted and not completely cleaned, or

Washing of Misprinted PCBs

Electronics Forum | Wed Aug 26 13:27:48 EDT 2009 | stepheniii

My understanding is the resin does a one to one ion exchange. And that when it becomes saturated, it does nothing. edit, and you do mean tap water, not toilet water, right?

Washing of Misprinted PCBs

Electronics Forum | Thu Aug 27 11:20:55 EDT 2009 | davef

SMT-IRL: Run a bare board through your cleaner to confirm our suspicion. Let us know the results, please.

Washing of Misprinted PCBs

Electronics Forum | Fri Aug 28 14:00:21 EDT 2009 | kennyg

O.M.G. ! Its blue pad ! ...RE: O.M.G. ! Its blue pad !... or blue balls, assuming there are BGA's on the assembly

OKO 2000 Aqueous Cleaning System

Electronics Forum | Thu Nov 11 05:57:49 EST 2010 | rafacadiz

I´m looking for a PCB cleaning system, basically for misprint, low volumen. I have found the OKO 2000, I would appreciate any comment about experience with this machine. Thanks,

Solder Paste Mis-print

Electronics Forum | Mon Oct 03 08:11:15 EDT 2016 | emeto

Good printers can do it without problem. Make sure you check after that(SPI is the best).

Solder Paste Mis-print

Electronics Forum | Tue Oct 04 08:10:29 EDT 2016 | philc

We have a "Blundell Stencil Cleaner" screen washer here, and if boards are badly printed, we put them in the wash, then dry them off thoroughly and reprint them. There are small, insignificant signs of tiny solder spheres afterwards, but nowhere near

Missprinting cleaning

Electronics Forum | Wed May 30 12:40:22 EDT 2018 | davef

Drink the Absolut IPC published the Stencil and Misprinted Board Cleaning Handbook (IPC-7526). Free download here: http://shop.ipc.org/IPC-7526-English-D


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