Low cost Czochralski crystal growing technology. Near term implementation of the flat plate photovoltaic cost reduction of the Low Cost Solar Array Project. Second quarterly progress report, July 1-September 30, 1979
During the quarterly reporting period, the R.F. induction heating generator and the contractor-owned CG2000 RC crystal puller have been received and are currently being installed. Installation is approximately 90% complete. Completion is scheduled for October 3, 1979. All functions of the crystal grower have been tested out and a 7 kilogram crystal has been pulled in the equipment testing department as part of a standard customer acceptance analysis. Total redesign of the crystal recharge system has been completed and the fabrication has been subcontracted. Problems interfacing the R.F. work coil with the R.F. feed-thru system has necessitated a redesign of the coil connection assembly. This is scheduled for completion October 10, 1979. The R.F. feed-thru has been redesigned due to extensive lead times for specialized materials. The system is currently being fabricated in-house. The redesign now allows us to utilize the spectator viewport for the feed-thru rather than having to machine the port in the tank cover assembly. All necessary piece parts for crystal growth have been received, together with 159 kilograms of nominally 5'' diameter polycrystalline silicon rod. A quotation has been received for fabrication of the cold crucible assembly and work coil. This is currently being evaluated.
- Research Organization:
- Kayex Corp., Rochester, NY (USA)
- DOE Contract Number:
- NAS-7-100-955270
- OSTI ID:
- 5718520
- Report Number(s):
- DOE/JPL/955270-2
- Country of Publication:
- United States
- Language:
- English
Similar Records
Low cost Czochralski crystal growing technology: near term implementation of the flat plate photovoltaic cost reduction of the low cost solar array project. Third quarterly progress report, October 1-December 31, 1979
Development of advanced Czochralski growth process to produce low-cost 150-kg silicon ingots from a single crucible for technology readiness. First quarterly progress report, October 1, 1980-December 31, 1980
Related Subjects
36 MATERIALS SCIENCE
SILICON
CRYSTAL GROWTH
CRUCIBLES
CZOCHRALSKI METHOD
EQUIPMENT
HEATERS
MODIFICATIONS
PLASMA ARC SPRAYING
RESEARCH PROGRAMS
RF SYSTEMS
CRYSTAL GROWTH METHODS
DEPOSITION
ELEMENTS
SEMIMETALS
SPRAY COATING
SURFACE COATING
140501* - Solar Energy Conversion- Photovoltaic Conversion
360601 - Other Materials- Preparation & Manufacture