Electronics Forum: smt test point (Page 1 of 155)

via as test point

Electronics Forum | Mon Feb 26 12:26:43 EST 2001 | CAM

I'm working a problem and looking for your input. Here the deal: Two sided mix technology board. Test is using unmasked via points on bottom for test points. Our fab drawing states tent via points on top side. First set of board came in with no tenti

via as test point

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

Test the solder point

Electronics Forum | Thu Nov 18 03:54:49 EST 1999 | jacky

Hello,everyone, I want to know how I can test the reliability of the solder point.And now we just push or pull the components to test the reliability of solder point,but I don't know if there is any measure of the power applied to the component

Re: Test the solder point

Electronics Forum | Thu Nov 18 10:56:16 EST 1999 | Dave F

Jacky: There�re major four factors that affect the reliability of a solder connection. 1 Design of the connection including the shape and height of the lead and the type and amount of solder. 2 Dissolution of base metals into the solder connection.

testing smt boards

Electronics Forum | Sat Dec 03 02:10:59 EST 2005 | Homer J

1. What are we talking about: pcb:s or pcba:s? 2. What exactly do you want to attain with this board test? 3. Are you a pcb manufactor or a pcba manufactor? 4. You did not mention what type of boards you want to test? 5. Mechanical, operating enviro

delamination test

Electronics Forum | Tue Aug 23 13:03:14 EDT 2005 | davef

What's the point of such a test? * If you are operating a board in an environment that keeps the board at a temperature that is close to causing delamination, why not design a board that can tolerate such an operating environment, rather than contin

Contamination test

Electronics Forum | Sun Jul 29 21:33:30 EDT 2001 | CAL

Your Ionograph and Zero-ion Values are set by you. There is no raw pass of fail criteria only the limits you set up. Ionograph is great for bare board resistivity (salt) test just as a pass fail for incoming inspection but this is all per your facto

test socket

Electronics Forum | Thu Jan 07 03:21:13 EST 1999 | Dorothy Ho

I'm looking for some SMT test sockets. Could you tell me who can do a similar job as Ironwood Electronics, Inc.? Thanks.

Cleanliness test

Electronics Forum | Fri Jan 03 12:12:22 EST 2003 | richard

Good day and thanks for your comments Mike, What did I understood from your notes� 1) ROSE test (�extracting solution�) is probably good enough (with good equipment) to penetrate the space under my micro BGA. 2) I should test 2 parallel batches of

delamination test

Electronics Forum | Tue Aug 23 16:57:29 EDT 2005 | HOSS

50% of seeing it in a single pass. The only time we do this is if we have a board off the line that has delaminated. We'll run a sample of boards through bare to confirm that we have a bad batch. Even if we see no failures on the bare boards, we'l

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