Electronics Forum | Wed Jul 27 17:01:14 EDT 2005 | Dreamsniper
Issue: At 60'C test PCB Fails. Operator did simulation. Use of Heat Gun to heat up the BGA to 60'C while PCB is powered and running. At 60'C BGA fails. When pressed system is back which means that something becomes open. Sent BGA for SEM and found t
Electronics Forum | Tue Jan 20 16:26:59 EST 2015 | emeto
There are a lot of lead testers out there. Just google it. I personally don't think you will find anything wrong, but for the pleasure of your customers buy one and prove it. I would also check the lead on the squeegees of your stencil printers and t
Electronics Forum | Thu Nov 02 17:15:48 EST 2006 | Mike Konrad
Asoe, The systems you are describing are Resistivity of Solvent Extract (ROSE) Testers. These systems are available using one of two technologies, Static or Dynamic. Both systems use a calibrated test solution comprised of IPA and DI water. The t
Electronics Forum | Tue Oct 26 17:01:08 EDT 2004 | Mike
Hi Guy's thank you for the Info, This is a New Assembly house that our OEM has Moved to and they have not been very open in discussing this issue other than they are telling us this is board related. I have ask for samples of faild product with th
Electronics Forum | Tue Oct 26 08:41:56 EDT 2004 | Bob R.
When we first got into BGAs on ENIG we were getting joint cracking at in-circuit test. The joints were breaking in the Sn-Ni intermetallic. We did a lot of pull testing while working with our board suppliers and our conclusion was that pull testing
Electronics Forum | Mon Feb 26 20:02:42 EST 2001 | davef
First, I don�t understand why your board fabricator can�t do a good job plugging your vias. Additionally, when you consider that they forgot to plug the first batch of boards, it makes me wonder if they are desirable as a supplier. Generally, we us
Electronics Forum | Thu Jun 04 21:04:31 EDT 1998 | Chiakl
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) What is th
Electronics Forum | Mon Apr 23 20:33:37 EDT 2001 | davef
I agree that solderability is THE issue, but we choose not to get into that pissin' contest. [We don't like the selected test method, either.] We believe that our coating thickness spec provides: * Solderability level that we seek. * Repeatable tes
Electronics Forum | Mon Jun 19 09:54:21 EDT 2000 | Paul Houston
Go to www.ipc.org and click on search. search for: IPC Test Methods Manual Section 6 IPC TM-650 Test Methods Manual SECTION 2.6 - ENVIRONMENTAL TEST METHODS Paul
Electronics Forum | Mon Apr 23 14:02:26 EDT 2001 | relensky
I am looking for a repeatble method to determine the quality of solder wetting to a PCB. I would like something that I can perform in-house, at low cost, with reliable results. My goal is to test the wetting on white-tin PCB's, after repeated reflo
