Electronics Forum | Thu Jul 27 14:35:12 EDT 2006 | rogerw_tech
I need some information about electrical test done on the pcb how does it work and what is the process?
Electronics Forum | Thu Jul 27 16:06:18 EDT 2006 | chrisgriffin
You will have to be more specific about your boards and process to get any help. There are many different types of in circuit tests and functional tests throughout the manufacturing process. The nature of these tests depend on board function. Sinc
Electronics Forum | Thu Jul 27 15:59:36 EDT 2006 | russ
test at the bare board level consists of opens and shorts. It makes sure that all traces are hooked (connected) up to the appropriate place and they are not shorted to a non common conductor. Russ
Electronics Forum | Thu Jul 27 16:54:46 EDT 2006 | pjc
In-Circuit test, or ICT, is the most common method of electrical test for an assembled PCB. It is the most comprehensive and accurate method to ensure that both the PWB and components are working to specification. Not all components however can be el
Electronics Forum | Wed Jun 09 23:58:59 EDT 2021 | SMTA-64387687
The electrical test, on those older machines, wasn't very exact. Try to expand the tolerances, 25-30% for caps and 10% for resistors, and see if that solves your problem. Also, if I remember correctly, if you go into the layout and single-place the c
Electronics Forum | Tue Jan 03 14:23:16 EST 2006 | Gary Kemp
Can anyone provide for me their prospective regarding AOI vs. electrical test? Which is better for generating REAL benefit in providing customer with a marked increase in defect free product? Thanks for any input you can provide.
Electronics Forum | Wed Jan 04 12:48:34 EST 2006 | pjc
In-Circuit Test is the best method for ensuring solder joint connections. It is a much more reliable than AOI. An ICT machine can ensure solder connections are made for array package devices such as BGA, PGA, etc... AOI is best for component I.D.- is
Electronics Forum | Tue Jan 03 15:16:53 EST 2006 | Cmiller
In circuit testing is expensive up front because of the fixture cost but the tests are fast. AOI programs can be develpoed in less than a day but take longer to run. If you have good test coverage, in circuit would be a better choice in my opinion-if
Electronics Forum | Thu Jun 10 16:40:48 EDT 2021 | cyber_wolf
Yes those verifiers seem like a good idea but they really don't work correctly. You would be better off verifying with a meter during reel changes than wasting your life on that thing. I concur that single mount will show the value.
Electronics Forum | Thu Jun 10 17:22:10 EDT 2021 | vtdivtecs
thanks! definitly not the answer I wanted to get, but it's good to hear it. Back when we sourced the machine a few years ago I was kinda against buying it as our production scale is so small it doesn't add a ton of value, BUT the electrical verific
.gif)
.gif)
