NOVEL PROCESS FOR THE THIN FILM GROWTH OF YBA2CU3O7

Award Information
Agency:
National Aeronautics and Space Administration
Branch:
N/A
Amount:
$499,941.00
Award Year:
1991
Program:
SBIR
Phase:
Phase II
Contract:
N/A
Agency Tracking Number:
11901
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Advanced Technology Materials
520-b Danbury Road, New Milford, CT, 06776
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
N/A
Principal Investigator
 James D. Parsons
 Director, Mocvd Research
 (203) 355-2681
Business Contact
 E. G. BANUCCI
Title: PRESIDENT
Phone: (203) 355-2681
Research Institution
N/A
Abstract
REALIZATION OF THE PERFORMANCE ADVANTAGES OF SUPERCONDUCTING DEVICES IN HIGH FREQUENCY COMMUNICATIONS DEPENDS ON DEVELOPMENT OF A LOW TEMPERATURE DEPOSITION PROCESS WITH EXACTING CONTROL OF STOICHIOMETRY AND MORPHOLOGY. MOCVD CAN MEET THESE NEEDS COUPLED WITH EASE OFSCALE-UP. HOWEVER, RECENT WORK AT ADVANCED TECHNOLOGY MATERIALS, INC. SHOWS THAT YBACUO AND BISRCACUO FILMS GROWN BY MOCVD AT TEMPERATURES LESS THAN 800 DEGREES CENTIGRADE ARE AMORPHOUS MIXTURES OF OXIDES, WITH CAULIFLOWER-LIKE MORPHOLOGY INDICATIVE OF LOW SURFACE MOBILITY GROWTH. SURFACE MOBILITIES CAN BE ENHANCED THROUGH THE USE OF A PLASMA. MOREOVER, PLASMA ASSISTED LASER ABLATION, SPUTTERING AND REACTIVE EVAPORATION HAVE ALREADY BEEN UTILIZED FOR THE IN-SITU GROWTH OF SUPERCONDUCTING THIN FILMS AT 400-600 DEGREES CENTIGRADE. AT 600 DEGREES CENTIGRADE, A 50 EV OXYGEN ION BEAM OXIDIZED BAF2 TO BAO, WHICH SUGGESTS THAT PLASMA ENHANCED-CVD WILL EFFECT THE IN-SITU GROWTH OF SUPERCONDUCTING THIN FILMS WITH THE EXISTING REAGENTS AT 600 DEGREES CENTIGRADE OR BELOW. PHASE I WILL DEMONSTRATE THE GROWTH OF IN-SITU SUPERCONDUCTING THIN FILMS BY PECVD. PHASE II WILL FOCUS ONPROCESS OPTIMIZATION THRU THE CORRELATION OF PLASMA PROPERTIES DETERMINED BY IN-SITU DIAGNOSTICS WITH THE HTSC THIN FILM CHARACTERIZATION DATA. THIS WILL ALLOW A PHASE III SCALE-UP OF THE PECVD PROCESS TO MULTIWAFER PRODUCTION.

* information listed above is at the time of submission.

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