It seems that printed circuit boards (PCBs) are almost always designed
and manufactured in inches in the US. The available board thicknesses
are given in inches, and copper thickness is given in "ounces," which
probably means avoirdupois ounces per square foot.
Last week I was working with a company in Canada. I emailed my designs,
which are mostly hard-metric. The salesman on the phone had to
translate my requirements into inches to generate a quote. Also, the
company's web site is entirely non-metric. This is the second Canadian
PCB manufacturer I've worked with, and the other was also entirely
non-metric.
Does anyone on this list of any experience with metric printed circuit
boards?
J.
