The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 09, 1982
Filed:
Aug. 27, 1979
Applicant:
Inventors:
Lloyd M Woerner, Carlsbad, CA (US);
Edward B Moore, Capistrano Beach, CA (US);
Assignee:
J. C. Schumacher Company, Oceanside, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; C01B / ;
U.S. Cl.
CPC ...
427213 ; 423342 ; 423349 ; 423D / ; 427 86 ; 427215 ;
Abstract
An economical, low temperature, closed loop, thermal decomposition process is provided for producing a controllable mixture of heterogeneously and homogeneously nucleated ultrahigh purity polycrystalline silicon suitable for use in the manufacture of semiconductor devices and photovoltaic solar cells. The process manipulates the equilibrium expressed by the chemical reaction ##STR1##