Infrared imager

By introducing an anti-crosstalk isolation structure into the infrared imager, the problem of interference electrical signals between adjacent pixel structures is solved, resulting in a higher signal-to-noise ratio and imaging quality, and improving the integration of the imager.

WO2026091489A1PCT designated stage Publication Date: 2026-05-07XINIR TECHNOLOGY(BEIJING) CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
XINIR TECHNOLOGY(BEIJING) CO LTD
Filing Date
2025-05-21
Publication Date
2026-05-07

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    Figure CN2025096259_07052026_PF_FP_ABST
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Abstract

The present disclosure relates to an infrared imager. The infrared imager comprises: a substrate; a quantum dot detection structure disposed on a side of the substrate and arranged in an array; and a crosstalk prevention isolation structure disposed on the same side of the substrate as the quantum dot detection structure, the crosstalk prevention isolation structure being disposed on at least one side of the quantum dot detection structure. The quantum dot detection structure is used for generating an electrical signal in response to an infrared light signal; the electrical signal comprises a target electrical signal transmitted to the substrate and an interference electrical signal having a transmission direction different from that of the target electrical signal; the crosstalk prevention isolation structure is used for diverting the interference electrical signal. In this way, by arranging the crosstalk prevention isolation structure on at least one side of the quantum dot detection structure, the interference electrical signal in the quantum dot detection structure can be diverted, preventing the interference electrical signal from being transmitted to an adjacent quantum dot detection structure and avoiding interference, thereby reducing noise of the infrared imager, improving the signal-to-noise ratio, and facilitating the improvement of infrared imaging quality.
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Citation Information

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