Electronics Forum: pcba and delamination (Page 1 of 6)

PCBA board and probe

Electronics Forum | Sat Nov 13 03:10:36 EST 2021 | pti88

why poor contact between PCBA board and probe? When I used ICT to test PCBA board, there was poor contact between board and probe .

warp and twist

Electronics Forum | Mon Feb 13 23:05:02 EST 2017 | swestheimer

I have been asked a very good question but have not been able to find a good answer. IPC for both PCB and PCBA refer to the X & Y dimensions to measure warp and twist but how would you determine the warp and twist for a round PCB or PCBA?

PCBA board and probe

Electronics Forum | Sun Nov 14 11:14:50 EST 2021 | kylehunter

> why poor contact between PCBA board and probe? Why ask a question with 0 information and some how expect an answer?

PCBA board and probe

Electronics Forum | Wed Nov 17 20:11:29 EST 2021 | dwl

is there flux on the board? are you probing a test point or a soldered pad? is the probe hitting the right spot?

Blistering and delaminating boards

Electronics Forum | Thu Sep 20 07:18:42 EDT 2018 | proceng1

Has anyone else been experiencing this lately? We have had a rash of boards that come in properly vacuum sealed. We store them in the hot room until we are ready to build, and we get bubbles under the solder mask. We've had 4 different jobs, all di

Tooling and Fixtues

Electronics Forum | Sat Feb 06 16:42:18 EST 2021 | sg7914

Respected all; I am currently a student at RIT and working towards my master's in Manufacturing and Mechanical System Integration with a specialization in Electronics Manufacturing. I came across an interesting topic regarding the tooling and fixt

Inspection and Sorting House

Electronics Forum | Wed Nov 17 11:03:11 EST 2004 | Haran

We are looking for a Inspection house in China to perform Inspection and Sorting on PCBA manufacturing process and product at various MNC.

Inspection and Sorting House

Electronics Forum | Thu Nov 18 18:49:24 EST 2004 | Haran

We are looking for a Inspection house in China to perform Inspection and Sorting on PCBA manufacturing process and product at various MNC's. Well verse with IPC requirement.

Lead Free and ICT

Electronics Forum | Sat Jun 03 03:35:16 EDT 2006 | mika

Yes we do have a problem with this. We have by now investigate numerous lead/RoHS PCBA:s The RoHS boards are by far the most difficult one's to probe and test. Our people at the "test area" including Flying Probe and ICT they spend a lot of time to t

Dye and Pry

Electronics Forum | Wed Mar 12 07:33:40 EDT 2008 | callckq

Hi All, One PCBA failed test after went through the Shock Test(Vibration) and suspected to be BGA solder ball crack. We performed dye and pry and found PCB's pad lifted with red mark ink penetrate pad underneath, what does this mean? Can I say the

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