Electronics Forum | Mon Jun 08 14:19:30 EDT 1998 | Gary Simbulan
Earl, et al, Boy things get old and cold around here fast. I promised more detail on my capactior problem and I thought I could drop something completely different in the same message and tell a tale of solder balls. First the caps. We still have
Electronics Forum | Fri Oct 08 11:51:10 EDT 2004 | blnorman
Since you are using an Ionograph you need to use IPC-TM-650 method 2.3.25, static method. The test method is free on the IPC website. You'll need to get your customer to give you an acceptable cleanliness level to test to.
Electronics Forum | Thu Feb 25 15:24:58 EST 2010 | jdumont
We use the OM-5100 and wash it with relatively good results. Just dont let it sit longer than a few days before wash. We've used Zestron AC200 and A-250 in a batch cleaner set to 140 wash temp for 8-10 min @ the recommended concentrations. We have h
Electronics Forum | Mon Oct 03 12:11:18 EDT 2005 | PWH
Soon we will be manufacturing board assemblies on our SMT lines that will utilize both lead and lead free water soluable solder pastes. I have read some discussion about change-over from lead to lead-free jobs related to machine cleanliness, etc. H
Electronics Forum | Mon Jun 17 15:04:08 EDT 2002 | genny
I think I had my units wrong in my previous post - that blueprint job was 6 years ago and fading fast. My level of 700 would have the same units as Dave's level of 1000. This is the metric measurement of lux, vs the imperial footcandles. fc to lux
Electronics Forum | Mon Jul 13 11:34:44 EDT 2009 | snsmt
thanks everyone! When we have a PCB to do, for one component, they usually give us an excess of 10 components! We are issued over 2,000 components. Does that sound reasonable? The problem is usually when the head picks up the component before it r
Electronics Forum | Fri Jul 13 16:45:37 EDT 2007 | losersk8er
The Contamination has proven to be pretty random, lots of stainless steel though in fact two cases in the past two days. As far as I know all machinery is cleaned regularly as well, even the stencil washer itself. The boards we make are 90% (at l
Electronics Forum | Tue Jan 08 09:23:18 EST 2013 | lock_2002
This is a question regarding soldermask between pins of fine pitch devices. The majority of our production designs end up with at least 2-3 mils of copper thickness on the external layers due to blind vias, wrap plating requirements, etc. Our curre
Electronics Forum | Wed Sep 11 07:23:07 EDT 2002 | johnw
peter, define what you class as SPC for these area's, or do you just mean looking at the PPM or DPM levels? John
Electronics Forum | Wed Oct 30 13:30:54 EDT 2019 | tnachamp
The consumables monitoring option totally disappeared from one of our printers. It used to show the level of paste, paper and solvent and now that window is totally black. I was wondering how we could get that option back onto the monitor. Thanks in
