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:
Dec. 14, 2004
Filed:
Nov. 22, 2002
Chun-Tao Lee, Hsinchu, TW;
Lin-Hung Shi, Ilan, TW;
Chi-Cherng Jeng, Hsinchu, TW;
Wen-Ti Lin, Hsinchu, TW;
Wei-Su Chen, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A vertical nanotube transistor and a process for fabricating the same. First, a source layer and a catalyst layer are successively formed on a substrate. A dielectric layer is formed on the catalyst layer and the substrate. Next, the dielectric layer is selectively removed to form a first dielectric mesa, a gate dielectric layer spaced apart from the first dielectric mesa by a first opening, and a second dielectric mesa spaced apart from the gate dielectric layer by a second opening. Next, a nanotube layer is formed in the first opening. Finally, a drain layer is formed on the nanotube layer and the first dielectric mesa, and a gate layer is formed in the second opening. The formation position of the nanotubes can be precisely controlled.