Electronics Forum: lifted and lead and aoi (Page 1 of 2)

lead free platings and tin lead

Electronics Forum | Tue Aug 31 21:45:49 EDT 2004 | KEN

I have experienced this directly in SMT and wave solder. Fillet lift (can) be a direct indicator to lead enrichment (but its not the exclusive symptom). Lead enrichment in smt joints reduces the interfacial strength shortening the time to creep f

"Gap" in completed solder joint between lead and pad

Electronics Forum | Tue Nov 28 15:10:50 EST 2006 | M. Sanders

Unfortunately, I don't have a copy of IPC-A-610 D on hand, however, I believe in IPC-610, this �floating height� between lead and pad has no maximum specification restriction. As long as there is no voiding, it is still acceptable for all 3 classes.

ICT and specifying PCBA testing

Electronics Forum | Fri Mar 26 11:31:34 EDT 2010 | rway

I have been using ICT for a number of years. It is still a viable resource for catching defects in the production process. AOI doesn't catch everything, such as bridging on QFN or J-lead devices (this will depend on the type of AOI and camera syste

ICT and specifying PCBA testing

Electronics Forum | Mon Mar 29 12:10:14 EDT 2010 | rway

Test Jet will work for catching lifted leads, certainly. X-ray is the only thing for testing for internal solder defects such as voids and cracks. I personally do not have any experience using X-ray, so I cannot advise on its reliability. Perhaps

Comparison between Vitech and Mirtec

Electronics Forum | Mon Jan 10 18:35:05 EST 2011 | eadthem

Ive used a Mirtec machine for 3 years MV3L with side angle inspection. Mirtec has some issues documentation, and repair plus. But there machine is impressive and the AOI software is good. We can find about 90-99.99% of all errors using just the 5

ICT and specifying PCBA testing

Electronics Forum | Fri Nov 18 12:35:15 EST 2011 | rway

As the article eludes to, you still need probe access to measure the pins with TestJet. One thing I wanted to add was the use of JTAG for use with Boundary Scan. Certain devices have JTAG capability, but not all JTAG devices are Boundary Scan compa

Line release of post reflow AOI and AXI

Electronics Forum | Mon Sep 22 17:02:58 EDT 2008 | hegemon

You are on the right track Ismir. Essentially however, as the programmer of the machine, I am the one that creates the PCB with the errors to benchmark the settings for the machine. No secret lab though! :-) Easy enough for most any AOI machine to

Line release of post reflow AOI and AXI

Electronics Forum | Tue Sep 16 19:16:11 EDT 2008 | hegemon

Hello everyone! > > I'm a student of electrical > engineering currently working on a thesis for my > BSc degree. It will be about post reflow AOIs and > AXIs, and I'd kindly like to ask you for some > help with it. > > I would like to know if t

CCGA - Stencil design and Reflow Profiling

Electronics Forum | Tue Jul 30 09:50:51 EDT 2019 | ameenullakhan

Attached is the image of lead lift in ccga

Reflow soldering problems and traces under component

Electronics Forum | Mon Jul 18 12:24:53 EDT 2016 | oleksz

Some people involved in PCB assembly process claim that SMD components reflow soldering problems are often caused by traces running under a component. According to this claim, trace (or any copper) covered by solder mask and placed under SMD componen

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