gEDA-user: Manufacturers of PCB on ceramic substrates?

[Gabriel Paubert <paubert@xxxxxxx>]

	Hi Bob,

according to the archives, you were looking in August 2006 for
manufacturers of PCB on ceramic substate.

Did you find anything?

I'm looking for something similar now, for a circuit containing a 
few Hittite HMC975 switches (it's not cryogenic, however).

Another problem I have is that, on an alumina substrate, with a
dielectric constant close to 10 and 5mil thick, I get a line
width of about 0.13mm (5mil), which is reasonably well matched 
to the dimensions of the bonding pads of the chip, but I am unable 
to find capacitors narrower than about 0.25mm (10mil) with low 
losses in the 4-20GHz range. 

Anybody knows of a capacitor manufacturer that could provide 
this kind of device?

	Regards,
	Gabriel


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