Electronics Forum | Sun Jun 17 01:30:18 EDT 2012 | bwjm
Hi, Recently i am faced with a challenge. How can a small manufacturing firm be able to have good production management (e.g. WIP tracking, progress of PCBA) without having sufficient cash to purchase sophisticated software? Excel do help in tracking
Electronics Forum | Wed Jul 04 10:08:23 EDT 2012 | daxman
I would agree with innova's suggestion of Marantz. I've seen 3 different AOI machines implemented into our shop, and you really have to consider the ease of use, and possibility of defects that operators can introduce. AOI's, theoretically, look good
Electronics Forum | Wed Jun 27 11:13:44 EDT 2012 | mosborne1
We are seeing PLCC socket leads not soldered in our SMT process. We are using a KIC thermal profiling device and we are on 50% greem light process window. All other solder joints on the board looks great. The solder flowed what looks like perfect on
Electronics Forum | Mon Jul 02 14:29:41 EDT 2012 | markhoch
I disagree with the statement that using pads as fiducials shouldn't be a problem. If he's using pads on the PCB, than he is most likely using corresponding apertures on the stencil. During production, these apertures will start to have paste accumul
Electronics Forum | Thu Jul 05 16:19:49 EDT 2012 | jorge_quijano
The PCB has 9 QFNs, distributed arround the whole board, but the ones in the edges are the ones with the problem. My stencil is 0.005" (I use to have a 0.006"), yesterday I realize after talking to my vendor that the stencil is manufactured in 2 step
Electronics Forum | Mon Jul 09 19:09:27 EDT 2012 | jorge_quijano
We used to have a manual printer machine, we could never align the stencil over the PCB well, now with the new stencil we have less defects but still appearing on the Top list. I tried to use more fids as you recommend and one issue I faced was that
Electronics Forum | Wed Jul 04 13:25:03 EDT 2012 | davef
Baking boards to remove moisture takes a lot more energy than you'd think. Following on with this, Chris Hunt from NPL gave a presentation at IPC APEX 2012 about the results of his research ["Impedance Testing for Sensitivity to Delamination in Print
Electronics Forum | Wed Aug 01 13:57:52 EDT 2012 | smtventasmex
Hi we have a problem with an Omniflow 10 he hood does not open, we have some zones failing, error messages, we change all the boards on the oven but not on the PC comm board, we saw than this board have damages and may be this will be the problem so
Electronics Forum | Fri Aug 03 10:18:36 EDT 2012 | pctech
Greetings everyone, I am trying to figure out away to clean our stencils by hand. Unfortunately, we do not have a stencil cleaner due to size and finance of our company. I am using Ionox to clean them daily.But the walls do not come clean. Is this a
Electronics Forum | Mon Aug 06 09:55:32 EDT 2012 | dyoungquist
Techspray makes a liquid called "Eco-Stencil SMT Stencil Cleaner" and also pre-saturated wipes by the same name. We spray the cleaner on the stencil and then use the wipes to clean the paste off of the stencil. Putting 1 wipe in each hand and rub
