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. 19, 2026
Filed:
Dec. 20, 2021
Shanghai Tianma Microelectronics Co., Ltd., Shanghai, CN;
Kaidi Zhang, Shanghai, CN;
Baiquan Lin, Shanghai, CN;
Kerui XI, Shanghai, CN;
Wei Li, Shanghai, CN;
Yunfei Bai, Shanghai, CN;
Ping Su, Shanghai, CN;
SHANGHAI TIANMA MICROELECTRONICS CO., LTD., Shanghai, CN;
Abstract
A microfluidic device includes a first substrate and a second substrate disposed opposite to each other. A cavity is formed between the first substrate and the second substrate. The first substrate includes multiple drive electrodes and multiple first electrodes, and the drive electrodes are disposed on a side of the first electrodes facing the second substrate. At least one of the drive electrodes includes at least one opening, and the opening, along a direction perpendicular to a plane where the first substrate is located, penetrates the drive electrode where the opening is located. An orthographic projection of at least one first electrode on the plane covers an orthographic projection of one opening on the plane. The second substrate includes at least one second electrode, and an orthographic projection of the second electrode on the plane partially overlaps with an orthographic projection of the first electrode on the plane.