We designed some 60 GHz circuits on Corning 7740 glass substrates. These
are 800um thick and have epsilon about 4.5. One use to get on some
nanometers Ti/Cu binder and then copper. Very fast signal substrates, low
losses, little spurioses, little noise etc. May be something for you?
/Inge
----- Original Message -----
From: "McGlaughlin, Jeffrey A" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, December 01, 2008 7:54 AM
Subject: Re: [TN] Alumina Substrate
Steve -
Coorstek looks promising. I have not been given packaging specs but expect
the outline to be >>25mm square the since we are dealing with frequencies
>>10GHz.
Jeffrey A McGlaughlin, CID
Engineering Designer/EAS
Room 4-2-50
Phone (614)424-7582
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Creswick, Steven
Sent: Monday, December 01, 2008 9:53 AM
To: [log in to unmask]
Subject: Re: [TN] Alumina Substrate
Jeff,
Just one of multiples out there, but Coors is still into thin and thick
film ceramics. I pasted their thin film ceramics link below because I
equate HF with thin film patterning and 99% alumina. Whichever you
choose, they have it.
http://www.coorstek.com/electronics/ceramicsubstrates/thinfilm.asp
Laserage does laser processing of thick and thin film substrates if you
need holes cut, scribe lines for snapstrates, etc. Don't recall if they
do dicing. We do that inside so don't need to ask for that. There are
multiple other laser houses out there too.
http://www.laserage.com/
Steve
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of McGlaughlin, Jeffrey
A
Sent: Monday, December 01, 2008 8:57 AM
To: [log in to unmask]
Subject: [TN] Alumina Substrate
To All,
I have been ask to identify a source for some small high frequency
circuits on 5 mil thick Alumina substrate. Can anyone recommend a source
in the US (absolute requirement)?
TIA,
Jeffrey A McGlaughlin, CID
Engineering Designer
Battelle
505 King Ave
Columbus Ohio 43201-2693
Phone (614)424-7582
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