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THE ROLE OF SOLID PHASE IMPURITIES IN DISLOCATIONS AND THE CHARACTERIZATION OF…

Award Information

Agency:
National Science Foundation
Branch:
N/A
Award ID:
1646
Program Year/Program:
1986 / SBIR
Agency Tracking Number:
1646
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Sawyer Research Products Inc.
35400 Lakeland Blvd. Eastlake, OH 44094
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1986
Title: THE ROLE OF SOLID PHASE IMPURITIES IN DISLOCATIONS AND THE CHARACTERIZATION OF THESE DEFECTS IN SINGLE CRYSTAL CULTURED QUARTZ.
Agency: NSF
Contract: N/A
Award Amount: $184,000.00
 

Abstract:

THE MANUFACTURING PROCESS APPLIED TO QUARTZ CRYSTAL FREQUENCY CONTROL COMPONENTS IS SEVERELY CONSTRAINED BY DEFECTS PRESENT IN THE CULTURED QUARTZ MATERIALS. ATTEMPTS BY CRYSTAL COMPONENT MAKERS TO ADAPT LOW COST, HIGH QUALITY BATCH PHOTOLITHOGRAPHIC PROCESSING TECHNIQUES PIONEERED BY THE SEMICONDUCTOR INDUSTRY ARE BLOCKED BY THE INABILITY OF CURRENT QUARTZ TO WITHSTAND STRONG ETCHANTS. THE QUARTZ WAFERS DEVELOP ETCH PIPES OR HOLES WHICH SERIOUSLY REDUCED YIELDS. ETCH PIPES APPEAR TO RESULT FROM BUNDLES OF CRYSTAL DISLOCATIONS DECORATED WITH IMPURITIES. THE ROLE OF INCLUSIONS ON CREATING DISLOCATIONS IN SINGLE CRYSTAL CULTURED QUARTZ IS INVESTIGATED. MATERIAL IS CHARACTERIZED USING X-RAY TOPOGRAPHY, AND AMMONIUM BIFLUORIDE ETCHANTS TO HIGHLIGHT BUNDLED, DECORATED DISLOCATIONS PRONE TO ETCH PIPE FORMATION. GROWTH CHAMBER WALL CONDITIONS, AN IMPORTANT FACTOR IN CREATING SOLID INCLUSIONS ARE VARIED BY UTILIZING MECHANICAL AND CHEMICAL CLEANING PROCEDURES. ADDITIONALLY, RAW MATERIALS AND PROCESS SOLUTIONS ARE PURIFIED. THE FEASIBILITY OF IMPROVING DISLOCATION DENSITIES IN CRYSTALS IS STUDIED. THE SUCCESSFUL REDUCTION OF RESEARCH TO DEVELOPMENT AND EVENTUAL PRODUCTION WOULD ALLOW U.S. CRYSTAL FABRICATORS TO INTRODUCE INNOVATIVE PHOTOLITHOGRAPHIC PRODUCTION METHODS TO REDUCE, IMPROVE, QUALITY AND REGAIN COMPETITIVE ADVANTAGE WITH ASIAN FABRICATORS.

Principal Investigator:

Dr. Baldwin Sawyer
Director
0

Business Contact:

Dr. baldwin sawyer
DIRECTOR OF TECHNOLOGY
Small Business Information at Submission:

Sawyer Research Products Inc.
35400 Lakeland Blvd. Eastlake, OH 44094

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No