THEORETICAL ANALYSIS OF HETEROJUNCTION DOUBLE BARRIER DIODES FOR LOGIC APPLICATIONS

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$352,000.00
Award Year:
1988
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
6119
Agency Tracking Number:
6119
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
4516 Henry St, Pittsburgh, PA, 15213
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr Darryl D Coon
(412) 624-9080
Business Contact:
() -
Research Institute:
n/a
Abstract
THE USE OF LOGIC CIRCUITS EMPLOYING HETEROJUNCTION DOUBLE BARRIER DIODES WITH NEGATIVE DIFFERENTIAL RESISTANCE REGIONS WILL BE EXAMINED THEORETICALLY. SWITCHING TIME LIMITATIONS WILL BE ESTIMATED BASED ON CIRCUIT CONSIDERATIONS AND THE DEVICE ARCHITECTURE. FUNDAMENTAL LIMITATIONS ARISING FROM RIGOROUS UNITARITY BOUNDS AND DISPERSION EFFECTS INVOLVING QUANTUM MECHANICAL RESONANT TUNNELING TIME DELAY WILL BE INCLUDED. THE FUNDAMENTAL LIMIT CONSIDERATIONS ARE SUFFICENTLY GENERAL TO APPLY TO BARRIERS WITH ARBITRARY SHAPE. PRELIMINARY THEORETICAL ESTIMATES INDICATE THAT PICOSECOND OR SUBPICOSECOND SWITCHING TIMES MIGHT BE ACHIEVABLE WITH APPROPRIATELY DESIGNED AL(X)GA(1-X)AS/GAAS DEVICES. THESE SWITCHING TIMES ARE SO SHORT THAT IT BECOMES IMPORTANT TO EXAMINE ALL EFFECTS WHICH COULD LIMIT PERFORMANCE.

* information listed above is at the time of submission.

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