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:
May. 16, 1995
Filed:
Mar. 15, 1994
Shigeyoshi Watanabe, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A semiconductor device connected between first and second wiring lines comprises a semiconductor substrate, a first semiconductor column formed by etching the substrate by a predetermined depth, a second semiconductor column formed by etching the substrate by a predetermined depth, with a predetermined distance set from the first semiconductor column, a first gate electrode formed around a side wall of the first semiconductor column with an insulating layer interposed, a second gate electrode formed around a side wall of the second semiconductor column with an insulating layer interposed, a first diffusion layer functioning as one of a source and a drain, the first diffusion layer being formed at a top portion of the first semiconductor column and connected to the first wiring line, a second diffusion layer functioning as another of the source and the drain, the second diffusion layer being formed at a top portion of the second semiconductor column and connected to the second wiring line, and a diffusion layer functioning as one of a source and a drain, the diffusion layer being formed at bottom portions and peripheral portions of the bottom portions of the first and second semiconductor columns and shared by the first and second semiconductor columns.