Low Cost Solar Array Project. Task I. Silicon material. Gaseous melt replenishment system. Fifth quarterly progress report, 17 April-17 July 1980 [electronic resource].
- Cambridge, Mass. : Harvard University, 1980.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- Pages: 25 : digital, PDF file
- Additional Creators:
- Harvard University and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- The objective of this program is to develop an improved silicon production reactor with periodic batch delivery of product to either a casting or shotting process or through a liquid silicon transfer system directly to a crystal growth system. Progress is reported. The processes and equipment are scaled such that a modest investment can make available to the Czochralski crystal grower a low cost source of silicon. In addition, the smaller scale of operation means that the systems can be put into operation without large capital investments, guarantees of markets, etc. The chemical reactions are those in commercial usage now: deposition from a hydrogen - chlorosilane mixture. The major innovation is in reactor design which allows a high productivity of silicon. The reactor has been conservatively sized on the basis of epitaxial deposition rates. The conclusion of this calculation is that a reasonably sized system can produce rapidly enough to keep pace with either 10cm or 12cm diameter Czochralski crystal growth operating in a semi-continuous mode. (WHK)
- Report Numbers:
- E 1.99:doe/jpl/955269-80/5
- Other Subject(s):
- Published through SciTech Connect.
Jewett, D.N.; Bates, H.E.; Hill, D.M.
- Funding Information:
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