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, 1993
Filed:
Jun. 25, 1991
Applicant:
Inventors:
Clarence W-H. Teng, Plano, TX (US);
Robert R Doering, Plano, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
437 47 ; 437 52 ; 437 60 ; 437203 ;
Abstract
A memory cell comprises a semiconductor pillar comprising an inversion layer formed on a side wall of the pillar. A conductive capacitor of the memory cell comprises a first electrode formed by the inversion layer. A transistor of the memory cell is formed in the pillar and comprises a first source/drain region, a gate, and a second source/drain region comprising the inversion layer. The gate is coupled to a control line partially overlying a top end of the pillar.