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. 10, 2025

Filed:

Jan. 04, 2022
Applicant:

Cornell University, Ithaca, NY (US);

Inventor:

Jisung Park, Ithaca, NY (US);

Assignee:

Cornell University, Ithaca, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/30 (2006.01); C01G 19/02 (2006.01); C04B 35/457 (2006.01); C04B 35/468 (2006.01); H01L 21/3065 (2006.01); H01L 21/311 (2006.01); H10D 30/67 (2025.01); H10D 62/80 (2025.01); H10D 64/62 (2025.01); H10D 64/66 (2025.01); H10D 64/68 (2025.01); H10K 71/20 (2023.01);
U.S. Cl.
CPC ...
H10D 30/6755 (2025.01); C01G 19/02 (2013.01); C04B 35/4682 (2013.01); H01L 21/3065 (2013.01); H01L 21/31144 (2013.01); H10D 62/80 (2025.01); H10D 64/62 (2025.01); H10D 64/667 (2025.01); H10D 64/691 (2025.01); H10K 71/233 (2023.02); C04B 2235/3293 (2013.01);
Abstract

Micron scale tin oxide-based semiconductor devices are provided. Reactive-ion etching is used to produce a micron-scale electronic device using semiconductor films with tin oxides, such as barium stannate (BaSnO). The electronic devices produced with this approach have high mobility, drain current, and on-off ratio without adversely affecting qualities of the tin oxide semiconductor, such as resistivity, electron or hole mobility, and surface roughness. In this manner, electronic devices, such as field-effect transistors (e.g., thin-film transistors (TFTs)), are produced having micron scale channel lengths and exhibiting complete depletion at room temperature.


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