Electronics Forum | Mon Nov 26 15:15:05 EST 2007 | realchunks
I agree with James. Granted there are a variety of lasers to try, we too could not get a consistent power setting. Plus when paste turns liquid, you get some reflection. Also the mask around the pad has to be pulled back or burning may occur.
Electronics Forum | Mon Jul 12 14:00:37 EDT 2004 | blnorman
We've been using lasers to mark barcodes on our boards for some time now. We use a CO2 laser to burn through the solder mask on most of our boards. The machine is enclosed so the operators aren't exposed to the laser. The laser is also mounted on
Electronics Forum | Thu May 01 18:26:50 EDT 2008 | jmelson
I am partial to Weller for the small rework irons. I use both the WSL with WMP (current model) and some older EC1302 irons with their power supply (I forget the model, but the one with analog setting knob and digital temp readout). I actually prefe
Electronics Forum | Thu Sep 02 16:55:31 EDT 2010 | markgray
I ment LF318. We have a power supply board that has 3 different types of these LGA's and i have had great success with the reductions and stencil thickness mentioned. We had to go with 4 mil stencil due to the consideration of the other large compone
Electronics Forum | Tue Aug 18 10:11:04 EDT 2009 | grantp
Hi, Yes, I think this sounds like a form of tomb-stoning, and we used vapor phase until it ended up driving us totally nuts trying to deal with tomb-stoning. We tried everything, and all kinds of stencil apertures. Vapor phase is an amazing process
Electronics Forum | Thu Apr 30 09:27:58 EDT 2020 | clockwatcher
I currently have a board that has several wires that need to be soldered into it. Many years ago I remember wave soldering power supply boards that also had many wires. In order to keep the wire insulation out of the solder fillet and keep the wires
Electronics Forum | Fri Jun 26 10:15:08 EDT 2015 | capse
Japan UNIX supplies laser solder technology from components to full systems.
Electronics Forum | Mon Apr 29 22:25:30 EDT 2019 | pcbindex1
Besides, regulated power supply should be installed separately on the printing boards. When power and circuits share the same printing boards, it should be avoided that regulated power supply and circuit components are mixed or power and circuits sha
Electronics Forum | Thu Feb 04 12:01:07 EST 2016 | g2garyg2
Hi Luis A white mask typically helps in the marking process since you are not reliant upon the PCB layers to create the contrast. Laser marking is really an etching process, so if your laser is set properly (power and focus) the goal with mask is to
Electronics Forum | Wed Mar 21 20:40:28 EST 2001 | dblsixes
We are building a monster ... Dimensions are 10" x 7" ... 12 layers ... A Logic Assembly with a Power Supply all rolled into one ... The Power Supply is in one section of the board, the logic in the other section ... The Power Supply obviously has a
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