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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.:

US 4834832 B1

PDFFull Text
Date of Patent:
May. 30, 1989

Filed:

Aug. 15, 1986

Process and apparatus for the manufacture of silicon rods

Applicant:
Inventors:

Horst Stock, Burghausen, DE;

Lothar Huber, Burghausen, DE;

Georg Priewasser, Ach, AT;

Assignee:

Wacker-Chemitronic Gesellschaft fur Elektronik-Grundstoffe mbH, Burghausen, DE;

Attorney:

Collard, Roe & Galgano

Primary Examiner:

Robert L Stoll

Assistant Examiner:

R Bruce Breneman

Int. Cl.
CPC ...
C30B / ; C30B / ;
U.S. Cl.
CPC ...
1566201 ; 1566164 ; 1566204 ; 156D / ; 156D / ; 422246 ; 422249 ;
Abstract

A process and apparatus for the manufacture of silicon rods having a colur structure comprising monocrystalline crystal zones with a crystallographic preferred orientation. Molten silicon is transferred from a silicon reservoir into a crystallization chamber which is formed by rollers arranged in a leak-proof manner in the shape of the desired rod cross-section. There the silicon first forms a stable outer shell of solidified material and, while it continues to crystallize, it is withdrawn at the bottom and released by the rollers. Owing to the short period of contact with a vessel wall a silicon rod is obtained that is particularly free of impurites.

Find Patent Forward Citations

Stock, Horst. (1989). Process and apparatus for the manufacture of silicon rods (U.S. Patent No. 4834832). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4834832

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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