Electronics Forum | Tue Dec 09 18:03:39 EST 2008 | davef
First, you cannot determine foil thickness from its weight per area, because there is significant variation in the density of electrodeposited copper. Second, the official IPC specification for minimum thickness is "after" processing by the fabricat
Electronics Forum | Sun Sep 09 21:59:36 EDT 2018 | sanneyyu
we are a PCB house, you can add some patterns at breaktabs or board edge, this can help you easily verify copper weight for every circuit layer.
Electronics Forum | Tue Apr 24 10:08:40 EDT 2018 | sarason
Alibaba has plenty of them https://www.alibaba.com/showroom/thickness-measuring-instrument.html Just stick to the ultrasonic method to measure the copper thickness. sarason
Electronics Forum | Tue Sep 11 04:39:14 EDT 2018 | cannizzaro
If you need to know the exact copper thickness of the board, you can ask the Fab to offer the microscopic report, I have already made a 2oz board in ALLPCB before and asked them offeed me this report,usually normal factories can offer it but need add
Electronics Forum | Tue Apr 24 09:19:51 EDT 2018 | vetteboy86
Is there a preferred method among printed circuit board assembly for accurately and quickly verifying the copper weight of a printed circuit board? I would like a tool and process that our quality inspector could quickly use to verify upon receipt of
Electronics Forum | Tue Apr 24 10:44:05 EDT 2018 | lucianooo
Hi, Uusually for professional PCB factory they can supply "By microscopic slicing" services so that you can make sure the cooper thickness is excatly like you need. If factory is small then usually don't have this services,and normally can not test
Electronics Forum | Wed Dec 03 16:39:49 EST 2008 | bandjwet
Hi All: Does anyone know how to specify or buy 1oz copper foil in a sheet format? Thanks BWET
Electronics Forum | Tue Jan 15 22:26:34 EST 2013 | boardhouse
Ken - are you looking for copper weight or material thickness as Paul answered. If your talking copper it would be 5 oz. Regards, Mike
Electronics Forum | Mon Nov 15 21:35:50 EST 1999 | Dave F
Bob Bob: Fortunately, you found this before you built-up a lot of product. Some thoughs and other drivel: 1 Use IPC-TM-650, Method 2.4.8 for copper peel with a Instron machine. Typical pad peel strength requirement for FR-4, 2 oz. copper is: 6 l
Electronics Forum | Wed Nov 23 08:43:48 EST 2022 | charles_nguyen
I am having problem with plated hole-copper spacing. I don't know if the gap between plated hole and copper can meet the capacity of PCB manufacturers. My board have 0.5oz copper weight on outer layer and distance of 0.177MM between plated hole and c
