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.

Date of Patent:
Jul. 07, 2015

Filed:

Oct. 11, 2013
Applicant:

National Tsing Hua University, Hsinchu, TW;

Inventors:

Yung-Chun Wu, Hsinchu, TW;

Yi-Ruei Jhan, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/66 (2006.01); H01L 29/423 (2006.01); H01L 29/739 (2006.01); H01L 29/06 (2006.01);
U.S. Cl.
CPC ...
H01L 29/42356 (2013.01); H01L 29/7391 (2013.01); H01L 29/0657 (2013.01);
Abstract

An asymmetric gate tunneling transistor includes a substrate, a first-polarity portion, a second-polarity portion, a channel portion, a gate structure and an insulation body. The first-polarity portion and the second-polarity portion are disposed on the substrate. The channel portion is connected with the first-polarity portion and the second-polarity portion, and includes a first section and a second section. The gate structure includes an enveloping portion surrounding the first section, and a flat portion covering one side of the second section away from the substrate. The insulation body includes a first insulation portion disposed between the first section and the enveloping portion, and a second insulation portion disposed between the second section and the flat portion. Through the asymmetric design of the gate structure, the tunneling transistor is offered with features of a high ON current and a low OFF current.


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