Photodetector and electronic apparatus
The photodetector addresses color mixing issues in phase difference detection by using impurity regions and trench-based separation in the substrate to prevent light reflection, enhancing autofocus accuracy and image quality.
WO2026140841A1PCT designated stage Publication Date: 2026-07-02SONY SEMICON SOLUTIONS CORP
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SONY SEMICON SOLUTIONS CORP
- Filing Date
- 2025-12-09
- Publication Date
- 2026-07-02
Smart Images
Figure JP2025042854_02072026_PF_FP_ABST
Abstract
To suppress color mixing of light. A photodetector is provided, the photodetector including a pixel array unit in which a plurality of pixels including a first pixel including a plurality of photoelectric conversion units formed for a single microlens are arranged in a two-dimensional array shape, in which the first pixel is provided with a first separation portion separating the plurality of photoelectric conversion units, and the first separation portion separates a portion corresponding to a light concentration position of the microlens with an impurity region formed in a semiconductor substrate on which the plurality of photoelectric conversion units are formed, and separates a portion excluding the portion corresponding to the impurity region by embedding a substance in a trench formed in the semiconductor substrate. The present disclosure can be applied to, for example, a solid-state imaging device such as a CMOS-type image sensor.
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