Semiconductor photosensitization device, production method and application thereof

A technology for photosensitive devices and manufacturing methods, applied in semiconductor/solid-state device manufacturing, electrical components, radiation control devices, etc., to achieve the effects of reducing manufacturing costs and high image resolution
CN101707202AActive Publication Date: 2010-05-12SUZHOU ORIENTAL SEMICONDUCTOR CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SUZHOU ORIENTAL SEMICONDUCTOR CO LTD
Publication Date
2010-05-12

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Abstract

The invention discloses a semiconductor photosensitization device which comprises a source electrode, a drain electrode, a control grid, a floating grate region, a substrate, and a p-n node diode for connecting a floating gate region and a drain electrode. The floating grate region of the semiconductor photosensitization device is used for storing charges, and the floating grate potential of the semiconductor photosensitization device is related to light exposure intensity and time, thus, the invention can be used as a semiconductor photosensitization device. The invention also discloses production methods of the semiconductor photosensitization device and an image sensor, as well as an image sensor formed by arrays formed by the semiconductor photosensitization device. The semiconductor photosensitization device can simplify the design of a single pixel unit in a traditional image sensor and reduce the area occupied by the single pixel unit, thereby improving the pixel density of the image sensor, increasing the resolution of the image sensor and reducing the production cost of the image sensor.
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Description

technical field

[0001] The invention relates to a semiconductor photosensitive device and its array, in particular to a semiconductor photosensitive device and its array structure, manufacturing method and application thereof. Background technique

[0002] Image sensors are semiconductor devices used to convert optical signals into electrical signals. Image sensor chips (Image Sensors) composed of image sensor devices are widely used in multimedia products such as digital cameras, video cameras, and mobile phones.

[0003] At present, there are mainly two types of image sensors: Charge Coupled Device (CCD) image sensors and Complementary Metal-Oxide-Semiconductor (Complementary Metal-Oxide-Semiconductor) image sensors, hereinafter referred to as CMOS image sensors. Charge-coupled devices have the advantages of high image quality and low noise, but their production costs are also high, and they are not suitable for integration with peripheral circuits. CMOS image sensors are...

Claims

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