Moin,
I recently wondered, why people around voltage metrology hardly
talk about ceramic substrates (Al2O3, AlN, ...) for PCBs.
They have surface resistivity that is as high as PTFE, have
higher thermal conductivity, lower thermal expansion (AlN is
even pretty close to Si). So, why then does it hardly ever get
mentioned? Is it the cost of those? Or is there something I am
missing?
Attila Kinali
--
You know, the very powerful and the very stupid have one thing in common.
They don't alters their views to fit the facts, they alter the facts to
fit the views, which can be uncomfortable if you happen to be one of the
facts that needs altering. -- The Doctor
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