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May 2014

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Subject:
From:
Joyce Koo <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Joyce Koo <[log in to unmask]>
Date:
Fri, 16 May 2014 15:35:57 +0000
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Syed,
(1) most likely you not going to get a wafer but a plate of alumina (square not round).  It just nature of the beast of ceramic.
(2) most likely, you are going to get a alumina with glazed surface - sio2 rich layer with smooth surface - you need to look at substrate supplier that specialize LTCC or high temperature/high power device ceramic substrate.
(3) as for TiO2 and Pt metallization, you might have to go to 3rd party house to specially made.  Pt is easy - your school electron microscopy facility may have SEM sputter coater that uses Pt.  As for TiO2, you are looking at specialized service.  Most likely, you are not going to get a quote from one place that provide you with all of the stuff you want.  For qty of 5 pieces, you better try some national research lab, see if anyone would do a special job without burn a hole in your pocket.  (The semi house that have everything would never provide you with a special run that potentially contaminate their chamber).
My 2 cents.  


Joyce Koo
Senior MIL Specialist
Materials Interconnect Lab
Office: +1 (519) 888-7465 x 79945
BlackBerry: +1 (226) 220-4760





-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Ahmad, Syed
Sent: Friday, May 16, 2014 10:24 AM
To: [log in to unmask]
Subject: [TN] need alumina wafers

Dear TechNet Denizens,
We are in need of 5 ea.  100 mm alumina wafers.   To add to that it would be beneficial if someone could quote us 5 100 mm alumina wafers with a SiO2 layer, TiO2 layer followed by a Pt layer.   If you are able to accomplish this please email back and contact us. It will also help if sources can be referenced.
Thank you for your help.
Syed Sajid Ahmad, Manager of Engineering Services Center for Nanoscale Science and Engineering (CNSE) NORTH DAKOTA STATE UNIVERSITY Research 2
1805 NDSU Research Park, Fargo ND 58102
Phone 701 231 5880 Fax 701 231 5306
www.ndsu.edu/cnse<http://www.ndsu.edu/cnse>
[cid:3365659872_47370]



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