Electronics Forum | Thu Jul 27 16:54:46 EDT 2006 | pjc
In-Circuit test, or ICT, is the most common method of electrical test for an assembled PCB. It is the most comprehensive and accurate method to ensure that both the PWB and components are working to specification. Not all components however can be el
Electronics Forum | Fri Jun 05 10:24:56 EDT 1998 | Earl Moon
| I have just been assigned to look into the ionic chromotograhy test on our PCBA but I have zero knowledge. Could anyone help to explain what is this test about? Is it | a) a destructive test? | b) What is the measurement unit of this test? | c) Wh
Electronics Forum | Mon Jul 21 20:42:12 EDT 2003 | iman
Don, thanks for the thoughtful insight, can I run some thinking points for your further assistance? 1) ours is a Au over Ni PCB bareboard. Do you think excessive Au thickness is any way a influence for poor solder formation? I did notice the PCB ba
Electronics Forum | Tue Feb 27 00:40:35 EST 2007 | ivap
We are into PCB testing and one of our customers has expensive foreign equipments whose warranty period has expired. He is looking to have them repaired locally. We found most of the problems are with the PCBs.
Electronics Forum | Thu May 26 19:32:13 EDT 2005 | Mike Konrad
Three popular methods: Resistivity of Solvent Extract (ROSE) Test Method IPC-TM-650 2.3.25: The ROSE test method is used as a process control tool to detect the presence of bulk ionics. The IPC upper limit is set at 10.0 *g/NaCl/in2. This test is p
Electronics Forum | Wed Mar 06 10:24:32 EST 2002 | Charlie
Here our senerio: * There are no funds for additional test equipment. * Have only Delta Scan results, that are very limited. * Failuer of Delta Scan, PCB goes to vendor for X-ray analysis. Do you have a similar process and do you do anything diffe
Electronics Forum | Mon Oct 06 17:16:02 EDT 2003 | pjc
Yes, the OmegaMeter and IonoGraph are test equipment to measure ionic contamination. Either of those units should enable you to sort your inventory boards. for more info about this equipment, go to: www.cooksonee.com/products/scs/CoatingSystems/Ionic
Electronics Forum | Fri Jan 13 14:18:41 EST 2006 | mark
Hi, I would like to ask you how you test the PCB (electrical test) of first PCB before starting production.? What kind of equipment you are using? and method to confirm that components on PCB are correct (value, orientation, describtion, polarizatio
Electronics Forum | Mon Jul 26 17:21:20 EDT 1999 | Tom Terlizzi
any advice on ionograph testing in the 1 microgram/cm^2 for small devices. We have a old Alpha 500 series machine that is dead but ALpha doesn't service this vintage machine.Any other way to perform this test, or a third party vendors to service th
Electronics Forum | Wed Jul 14 15:24:57 EDT 2004 | Jarmato
You may also want to investigate an Ionic contamination tester. You can check with Alpha, Westek or an equipment broker to find a used tester. If you switch to OA fluxes this will be an important test to perform on a regular basis.
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