Electronics Forum | Tue Aug 10 16:01:12 EDT 1999 | Earl Moon
| | | | | | I am having cleaning problems when processing PCB's which have | | | | | | TAIYO solder mask on them. After processing, hand soldering and | | | | | | cleaning, a sticky residue is remains, resulting in a cosmetically poor finish with tid
Electronics Forum | Tue Dec 16 22:09:36 EST 2014 | deanm
The critical operations where cross contamination can occur is the paste printer, the touch up station and the hand soldering station. Hand insertion should not be a problem if the parts are kitted or issued with proper control. If possible I would
Electronics Forum | Wed Dec 11 14:38:25 EST 2019 | slthomas
The one thing I haven't seen mentioned yet is developing the the control systems for the process equipment and materials. You don't want to mix up your solder paste, bar, and wire, and you don't want to cross-contaminate by using equipment (solderi
Electronics Forum | Sat Jul 21 00:38:46 EDT 2001 | dougk
Where did this come from? I hope our safety director doesn't see this or I'll have more work to do. Seriously, if is bacterial contamination, it would be lysed immediately on contact with the iron. We ask our operators to wash their hands after handl
Electronics Forum | Mon Jun 28 10:03:22 EDT 2004 | davef
First, welcome to your new job. Second, IPC-TM-650 2.6.14 is only loosely an �Ionic Contamination (Electromigration) Test�. * Electromigration Test, IPC TM 650 2.6.14, 2.6.14.1 * Ion Chromatography for Ionic Cleanliness, IPC TM 650 2.3.28 Third, I
Electronics Forum | Fri Jul 20 15:53:57 EDT 2001 | davef
Bowing to jokesters with comments about cake, in-laws that drink all their beer, musician friends, and whatnot; I'll push forward. What do yall do to manage the life and contamination level in the sponges that hand soldering operators use to clean t
Electronics Forum | Wed Jan 31 14:07:24 EST 2007 | electronhose
Material, fumes, cured or uncured, all are suspect. Silicone gets on an operator's hands, that operator handles components ( even a day or more later ) silicone is transferred to the solder connections = contamination. Process and workcell control
Electronics Forum | Sat Sep 25 07:07:02 EDT 1999 | Brian
| I need a memory jog. What is the term for the growth of conductive contamination after a board is in storage or field? | There are several different mechanisms which can cause this. In reality, ionic contamination is the root cause for many of the
Electronics Forum | Thu Sep 27 19:52:28 EDT 2001 | davef
All of the discussion of "environmental controls" are a matter of degree, dependent on the requirements of the product that you manufacture. For example: shops assembling under-the-hood products have different requirements than shops making garage d
Electronics Forum | Fri Aug 13 09:09:11 EDT 2004 | davef
Solderability standards are: * IPC EIA J-STD-002B - Solderability Tests for Component Leads, Terminations, Lugs, Terminals and Wires * IPC EIA J-STD-003A - Solderability Tests for Printed Boards Not intending to insult you, but terms used to descr
