Single-chip image sensor having visible light and UV-light detection function and detection method thereof
A technology of image sensor and photodetector, which is applied in the field of image sensor chip design and solid-state integrated circuit design, and can solve problems such as the difficulty of integrating visible light and UV detection capabilities
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[0027] figure 1 A structure integrating a visible light sensor and a UV sensor into a single chip is described, and the structure includes a visible light sensor 100 and a UV sensor 110 disposed in a single chip 120 .
[0028] figure 2 It is a cross-sectional structure of an embodiment of the present invention. The single chip further includes a photodetector array 200, a color filter array 210 for obtaining a color or monochromatic visible light image is disposed on the photodetector array, and a transparent encapsulation layer 220 is further disposed on the color filter Above that, the encapsulation layer is usually made of thin glass or plastic.
[0029] Further, the encapsulation layer 220 is provided with a small-sized UV bandpass filter layer 230, the UV bandpass filter layer 230 includes but not limited to an infrared and visible light color filter layer 240 and a UV coating 250, Wherein: the infrared and visible light color filter layer 240 is a thin layer made of ...
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