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Sensor and electronic equipment

A sensor and sensing technology, applied in the field of electronic equipment and sensors, can solve the problems of low sensitivity of magnetic field sensors, small external magnetic field components, etc.

Active Publication Date: 2021-06-25
GOERTEK MICROELECTRONICS CO LTD
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Problems solved by technology

[0002]With the development of science and technology, the requirements for sensors in the measurement field are getting higher and higher. Traditional single-axis sensors or dual-axis sensors are used to measure the magnitude and direction of the magnetic field. During the detection process, due to the small component of the external magnetic field in the detection direction of the sensor, the detection sensitivity of the magnetic field sensor is low

Method used

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  • Sensor and electronic equipment
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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0044] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0045] In addition, the ...

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Abstract

The invention discloses a sensor and electronic equipment. The sensor comprises a substrate, a first sensing unit and a plurality of magnetic flux collectors. The first sensing unit is used for detecting a magnetic field in the direction of a first sensing axis, the first sensing unit comprises two first magnetic resistance modules and two second magnetic resistance modules which are arranged on the substrate, and the first magnetic resistance modules and the second magnetic resistance modules are connected to form a full-bridge circuit. The included angle between the magnetization direction of the pinning layers of the first magnetic resistance modules and the positive direction of the first sensing axis is defined as alpha, the included angle between the magnetization direction of the pinning layers of the second magnetic resistance modules and the positive direction of the first sensing axis is defined as beta, and alpha and beta are complementary angles. The plurality of magnetic flux collectors are arranged on the substrate, a magnetic gap is formed between every two adjacent magnetic flux collectors, and each first magnetic resistance module and each second magnetic resistance module are respectively located in one magnetic gap. According to the technical scheme, the detection sensitivity of the sensor can be improved.

Description

technical field [0001] The invention relates to the technical field of semiconductors, in particular to a sensor and electronic equipment using the sensor. Background technique [0002] With the development of science and technology, the requirements for sensors in the measurement field are getting higher and higher. In the process of detecting the magnitude and direction of the magnetic field, the traditional single-axis sensor or dual-axis sensor, due to the component of the external magnetic field in the detection direction of the sensor Smaller, making the detection sensitivity of the magnetic field sensor lower. Contents of the invention [0003] The main purpose of the present invention is to provide a sensor aimed at improving the detection sensitivity of the sensor. [0004] In order to achieve the above object, the sensor proposed by the present invention includes: [0005] Substrate; [0006] The first sensing unit, the first sensing unit detects the magnetic ...

Claims

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Application Information

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IPC IPC(8): G01R33/09G01R33/00
CPCG01R33/093G01R33/0011
Inventor 安琪冷群文邹泉波周汪洋丁凯文赵海轮周良
Owner GOERTEK MICROELECTRONICS CO LTD
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