Electronics Forum | Wed Sep 15 17:14:05 EDT 2010 | jwentz
Seems we had similar issue years ago with our VIP 70. There are a series of 2pin axial fuses on the panel with the SS relays and contactors (I don't think it was over the FCU). Check each fuse with a meter; replaced ours and the e-stop cleared and th
Electronics Forum | Thu Jun 14 21:23:36 EDT 2001 | davef
Oooo, big bucks wusher!!! Consider the SMTnet Archives a valued resource. For instance, look at: http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=1632&mc=2 As far as your resistivity measurement is concerned, you hav
Electronics Forum | Wed May 10 12:13:16 EDT 2006 | scombs
We have a 6 up panel with a 1206 part .082" from the board scoreline. After depanelization when we run the board through ICT it fails for a short at that location. We have visually inspected at high magnification for any cracks in the body and at the
Electronics Forum | Tue Jun 12 18:06:17 EDT 2001 | davef
The criterion you use will depend on the test method you select. For minimum requirements, look at J-STD-001C, Para 8, "Cleanliness Requirements". I figure that you�d measure the residues on a lot of your current product, measure the res on a lot o
Electronics Forum | Mon Nov 22 17:32:34 EST 2004 | davef
Assemblers often assume that the board and component suppliers provide them with clean product. This was not a problem when everyone used water washable fluxes, because the water washing used to clean the flux residues also cleaned the board and com
Electronics Forum | Mon Jun 11 22:06:00 EDT 2001 | davef
The issue is not the cleanliness of your in-bound water. The issue is the cleanliness of the board your customer receives. Look at J-STD-001C, Para 8, "Cleanliness Requirements". The end product cleanliness is the end result of your: * In-bound
Electronics Forum | Wed Mar 25 14:05:18 EST 1998 | Justin Medernach
| We currently use an abrasive fiberglass brush to clean the silver oxide off of our substrates proir to asembly. It's messy and tiring. Is there an alternative method, either chemical or mechanical that is cost effective for small (30 to 50ea 6in
Electronics Forum | Mon Jan 08 20:57:52 EST 2001 | Dave F
Are you talking about bare board cleanliness or assembly level cleanliness? Bare board cleanliness is still primarily measured by resistivity of solvent extract (ROSE) using instruments such as Omegameters and Zero Ions. What is considered as "acce
Electronics Forum | Thu Jan 02 11:35:30 EST 2003 | Richard
Cleanliness test � �Area Grid Arrays�. Evaluation of residues� resistivity in a specific location on the board. (As compared to �Solvent Extract� evaluation.) We are: SMT assembly, using standard �water soluble� process with micro BGAs (example: C
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