BST Capacitors for Cryogenic Focal Plane Arrays

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$753,020.00
Award Year:
1996
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
26346
Agency Tracking Number:
26346
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Advanced Technology Materials (Currently Advanced Technologies/Laboratories Intl)
7 Commerce Drive, Danbury, CT, 06810
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Peter C. Van Buskirk
(203) 794-1100
Business Contact:
() -
Research Institution:
n/a
Abstract
Although imaging in the 8-12 micron spectral region has widespread uses, high background radiation result sin low contrast, and charge storage in SiO2 capacitors limits the signal-to-noise and the upper limit of the dynamic range. A major opportunity exists to increase the performance of IR focal plan arrays (IRFPAs) using high dielectric constant BaSrTiO3 (BST) films to increase charge storage at the forcal plan. ATM recently announced an ARPA research program to develop BST capacitors for 1-gigabit dynamic random access memories (DRAMs), and the team members include IBM, TI and Micrn Semiconductor. Although early in the effort, capcitors with 30 fF/mm2 with low leakage have been demonstrated on 150 mm wafers. Dielectric constant for the BST is greater thatn 550 for 1400A films. The objective of Phse I is to deposit Ba1-xSrxTi)3 thin films by chemical vapor deposition on 150mm Si wafers. The effort will build upon DRAM technology, while focusing on unique requirements of cryogenic analog storage capcitors. Santa Baraba Research Center will characterize dielectric and resistance properties at 78K for different Ba/Sr ratios and will develop capacitor and process specifications for integrating ferroelectric capacitors in high resolution IRFPA's in Phase II.

* information listed above is at the time of submission.

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