[volt-nuts] PCBs with ceramic substrates

[Chuck Harris]

Some of the best piezoelectric transducers are made
from sintered ceramics.  Crystalline salts were once
used, but they are highly hygroscopic.

-Chuck Harris

Attila Kinali wrote:
> On Fri, 07 Apr 2017 21:30:56 +0200
> Rob Klein <rob.klein at smalldesign.nl> wrote:
> 
>> In general, metrology equipment doesn't get thrown about much ...
>>
>> I know some calibrators have (heated) modules on ceramic substrates, so it's not that it is completely unheard of.
>>
> 
> So, in summary, if the right substrate is used, then it's very usefull?
> 
> What about piezoelectricity? Is that a concern with the sintered substrates?
> Or is that only a problem with mono-crystaline materials?
> 
> 			Attila Kinali
>