Image sensor capable of suppressing crosstalk

• Main Authors: PANG CHIN POH, WANG QIN
• Format: Patent
• Language: Chinese; English
• Published: 22.11.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

An image sensor that suppresses crosstalk is provided. An image sensor for suppressing crosstalk includes a semiconductor substrate, an opaque layer, and a spectral filter. The semiconductor substrate includes a photodiode therein, the photodiode being located below an exposure area of a back surface of the semiconductor substrate. The opaque layer is on the back surface, partially covers the exposure area, and has an opaque layer thickness perpendicular to an image plane direction parallel to the back surface. The spectral filter is adjacent to the opaque layer in the image plane direction and partially covers the exposure area. 提供了一种抑制串扰的图像传感器。抑制串扰的图像传感器包括半导体基板、不透明层和光谱滤光器。半导体基板包括在其中的光电二极管，光电二极管位于半导体基板的背表面的曝光区域下方。不透明层位于背表面上，部分地覆盖曝光区域，并且具有垂直于与背表面平行的图像平面方向的不透明层厚度。光谱滤光器在图像平面方向上与不透明层相邻，并部分地覆盖曝光区域。