Invention Publication
- Patent Title: MICROFLUIDIC CHIP
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Application No.: US17758357Application Date: 2021-07-19
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Publication No.: US20240165610A1Publication Date: 2024-05-23
- Inventor: Baiquan LIN , Kerui XI , Ping SU , Linzhi WANG , Yian ZHOU , Feng QIN , Junting OUYANG
- Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
- Applicant Address: CN Shanghai
- Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
- Current Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
- Current Assignee Address: CN Shanghai
- Priority: CN 2110462186.2 2021.04.27
- International Application: PCT/CN2021/107141 2021.07.19
- Date entered country: 2022-07-05
- Main IPC: B01L3/00
- IPC: B01L3/00

Abstract:
Provided is a microfluidic chip. The microfluidic chip includes a first substrate and a second substrate disposed opposite to each other, a microfluidic channel formed between the first substrate and the second substrate and configured to accommodate at least one droplet, drive electrodes arranged in an array and sensing electrodes disposed on a side of the first substrate. Each sensing electrode includes at least one first branch electrode and at least one second branch electrode. The first branch electrode extends along a first direction, and the second branch electrode extends along a second direction. Different drive voltage signals are applied to adjacent drive electrodes to drive the droplet to move. Detection signals are applied to the sensing electrodes, and a position of the droplet is determined according to a change in capacitance between one sensing electrode and an electrode corresponding thereto when the droplet flows by.
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