Electrical Contacts and Packaging for Diamond and Diamondlike High-Power Devices

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$100,000.00
Award Year:
2006
Program:
SBIR
Phase:
Phase I
Contract:
FA8650-06-M-2633
Agency Tracking Number:
F061-189-2194
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
ALAMEDA APPLIED SCIENCES CORP.
626 Whitney Street, San Leandro, CA, 94577
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
836439968
Principal Investigator:
Jason Wright
Scientist
(510) 483-4156
wright@aasc.net
Business Contact:
Mahadevan Krishnan
President
(510) 483-4156
krishnan@aasc.net
Research Institution:
n/a
Abstract
The purpose of this Phase-I SBIR is to demonstrate the feasibility of using filtered cathodic arc deposition (FCAD) to fabricate improved metal multilayer Ohmic and Schottky contacts to CVD diamond. Polycrystalline CVD diamond substrates will be acquired, on which eight Ohmic and two Schottky contact metal multilayer architectures will be fabricated using FCAD. Linear transmission line model (LTLM) and van der Pauw test structures will be photolithographically patterned on Ohmic contacts using standard semiconductor lift off or etch back procedures. These test structures will be used to measure the specific contact resistivity and sheet resistance of Ohmic contacts. The microstructural evolution due to interdiffusion processes, solid-state reactions, and oxidation will be characterized by successive Rutherford backscattering spectroscopy (RBS) and LTLM electrical measurements during thermal aging at 250°C in air for 750 hours. Horizontal Schottky barrier diode (SBD) test structures will be fabricated using FCAD and photolithography, incorporating the best performing Ohmic contact. Current-voltage curves will be measured as a function of temperature, to 250°C, to evaluate the performance of rectifying contacts.

* information listed above is at the time of submission.

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