图像传感器及其形成方法
By designing a specific arrangement of filter layers and lens structures in the image sensor, the problem of the difference in focused spot affecting phase detection autofocus was solved, achieving a more efficient global phase focusing effect and reducing the requirements for process and alignment accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GALAXYCORE SHANGHAI
- Filing Date
- 2023-10-18
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the difference in the focused spot of the image sensor at different positions affects the focusing effect of phase detection autofocus technology, resulting in poor focusing speed and effect.
Design an image sensor structure in which a filter layer is located on two adjacent sub-regions of a pixel area, and a lens structure includes a first part and a second part. The lens structure corresponds one-to-one with the filter layer. The two parts of the lens structure cause the light spot to converge at the boundary of the two adjacent sub-regions, reducing the alignment accuracy requirement and improving the light sensitivity and phase detection capability.
It achieves high phase detection autofocus capability with lower alignment accuracy, improves the global phase focusing effect of the image sensor, and reduces the limitations of process requirements and alignment accuracy.
Smart Images
Figure CN119866084B_ABST