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. 30, 1982
Filed:
Apr. 02, 1979
Applicant:
Inventors:
Jack S Kilby, Dallas, TX (US);
William R McKee, Plano, TX (US);
Wilbur A Porter, College Station, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
264 13 ; 264 15 ; 264 85 ; 252 / ;
Abstract
A system and method is provided for forming semiconductor tear-drop shaped bodies having minimal grain boundaries. Semiconductor material is melted in a capillary tube at the top of a tower, and forced under gas pressure through a nozzle. Separate semiconductor bodies are formed. They are passed through a free fall path over which a predetermined temperature gradient controls solidification of the bodies. The resultant bodies are tear-drop semiconductor bodies of near uniform size with minimal grain boundaries.