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:
Jun. 22, 2021

Filed:

Oct. 28, 2019
Applicants:

Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;

National Taiwan University, Taipei, TW;

Inventor:

Ming-Han Liao, Hsinchu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/423 (2006.01); H01L 29/786 (2006.01); H01L 29/66 (2006.01);
U.S. Cl.
CPC ...
H01L 29/42392 (2013.01); H01L 29/66742 (2013.01); H01L 29/78696 (2013.01);
Abstract

A semiconductor device and method of formation are provided. The semiconductor device includes a channel surrounding a dielectric tube and a gate surrounding the channel. The dielectric tube comprises a high dielectric constant material that has or conducts few to no carriers, such as electrons or holes. The presence of the dielectric tube confines carriers to the channel, which is in close proximity to the gate. The proximity of the channel, and the carriers therein, to the gate affords greater control to the gate over the carriers, thus allowing a length of the channel to be decreased while experiencing little to no short channel effects, such as current leakage through the channel.


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