Electronics Forum | Fri Sep 21 02:26:32 EDT 2018 | sebestajaromir
Hello gentleman, I saw many topics regarding aoi verification but I didn't see how You handle with board with simulated failures during life time, because we Are facing issue with ageing of tin oxidation. Is it any idea how to solved this issue?
Electronics Forum | Thu Apr 11 11:24:55 EDT 2013 | markhoch
Thank you for your advice Eric. Different SMT Machine Platforms have different methods for handling these PCB Panels with bad circuits. (Commonly known as "X-outs"). Some platforms allow you to identify X-Outs simply by darkening in the first fid
Electronics Forum | Thu Apr 11 10:17:17 EDT 2013 | ericrr
Some times the PCB manufacture sends PCB panels with bad circuits, there are three ways to make these PCB without placing parts on the bad circuit, Well two in fact plus my method. (1) Placing a light mark on a dark background (or reverse) then the
Electronics Forum | Tue Sep 07 10:05:33 EDT 2004 | russ
Components do not have to be in the framework of the fiducials. It is recommended that the fiducials are at the outer extremeties in at least 3 corners of the assembly however. It is also a good idea to keep a minimum "keepout" area around them of
Electronics Forum | Mon Sep 06 09:55:52 EDT 2004 | Joe O.B.
Hi, We're going to migrate our boards from through-hole to SMT, and I'm dealing with the PCB layout. I've found a lot of references for fiducial marks but none of them states if components can be placed beyond the marks limits or only within the are
Electronics Forum | Wed Sep 08 20:48:28 EDT 2004 | Darby
Yes I agree with Russ about someone asking up front and everything else. Two tips. 1. Keep the marks at least 5mm in from the conveyor edges of the pcb so that clamping systems do not hide the mark. 2. Make sure the marks are eccentric around the pcb
Electronics Forum | Fri Sep 10 00:13:48 EDT 2004 | Darren
Joe If you are building these yourself your engineering group should be able to answer your questions, if you will be using a CM they will usually have a basic DFM report which they will gladly give to you as it will make their job much easier if yo
Electronics Forum | Tue Nov 18 07:22:56 EST 2008 | wewilldoit
Hi folks! TI told us that we are the only one with the following problem... We discovered a really bad wetting characteristic of some SMD ICs from BurrBrown. At the moment: XTR106 / INA118 / ADS7844. After the reflow process we found out that this pa
Electronics Forum | Wed Nov 26 13:31:40 EST 2008 | stepheniii
I don't know why they use it. I just know I read a TI white paper that said the problem wasn't their fault even though they knew that paladium made the parts hard to solder. And once when I started a new job one of the guys said that the owner had
Electronics Forum | Wed Apr 25 19:19:42 EDT 2012 | padawanlinuxero
Hi is me again If what you are looking is for the AOI to "see" the marking on a resistor theres the option of taking a picture of only the numbers in the resistor is not highly accurate but it works.
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