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Date: | Thu, 27 Feb 97 09:23:41 MST |
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Hello,
What methods are people using to measure line widths after etch on
innerlayers. The copper weight can be 0.5 to 1 oz. The trace width can
be 2 to 10 mils. The current method is too slow. An operator uses a
video inspection system. He manually puts the piece on the table,
lines it up and uses knobs to align reticules on a screen with the
image.
Is anyone using things like electrical tests, controlled impedance,
TDR? What about laser edge detection systems? What kind of automation
is available?
Thanks
Rich Olsen
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Richard Olsen Telephone (602)-232-9154
Continental Circuits Corp. Main (602)-268-3461
3502 East Roeser Road Fax (602)-268-0208
Phoenix Arizona Pager (602)-310-6245
85040-2905 Internet [log in to unmask]
USA I make circuit boards,what do you do?
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