Forming method for image sensor

A technology of image sensor and pixel array, which is applied in printing image acquisition, instrument, character and pattern recognition, etc., can solve problems such as difficult to improve integration and large module thickness, so as to improve production yield, increase yield, reduce Effect of Yield Loss
CN108734071AInactive Publication Date: 2018-11-02SHANGHAI OXI TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI OXI TECH
Publication Date
2018-11-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a forming method for an image sensor. The method comprises the following steps of providing a laminated substrate, wherein the laminated substrate comprises a supporting layerand a base layer arranged on the supporting layer; forming a pixel array on the base layer; forming a protection layer on the pixel array; and removing the supporting layer to obtain the image sensor.According to the technical scheme, the thickness of the formed image sensor can be effectively reduced, so that the thickness of a fingerprint imaging module can be reduced.
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Description

technical field

[0001] The invention relates to the field of fingerprint imaging, in particular to a method for forming an image sensor. Background technique

[0002] The fingerprint identification technology collects the fingerprint image of the human body through the fingerprint imaging module, and then compares it with the existing fingerprint imaging information in the fingerprint identification system to realize identity identification. Due to the convenience of use and the uniqueness of human fingerprints, fingerprint recognition technology has been widely used in various fields, such as: public security bureaus, customs and other security inspection fields, building access control systems, and consumer products such as personal computers and mobile phones, etc.

[0003] The imaging methods of the imaging module used in the fingerprint identification technology include optical, capacitive, ultrasonic and other technologies. One of them is to collect the fingerprint im...

Claims

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