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:
Feb. 18, 1997
Filed:
Mar. 21, 1995
Applicant:
Inventors:
Yuan Taur, Bedford, NY (US);
Hon-Sum P Wong, Chappagua, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
257348 ; 257350 ; 257412 ;
Abstract
A novel method of fabricating a double-gate MOSFET structure is disclosed. The method utilizes selective lateral epitaxial growth of silicon into a thin gap formed between two sacrificial dielectric films for accurate thickness control. The sacrificial films are then replaced by a gate material (e.g., polysilicon) such that top and bottom gates are self-aligned to each other and to the channel region. Also disclosed is a self-aligned double-gate MOSFET constructed in accordance with the foregoing method.