IMAGE SENSOR HAVING INCREASED INTEGRATION

原文（中国語）

An image sensor includes a pixel isolation structure in a semiconductor substrate. The pixel isolation structure defines a plurality of pixel regions, a photoelectric conversion region in the semiconductor substrate on each of the pixel regions, a floating diffusion region in the semiconductor substrate and spaced apart from the photoelectric conversion region. A transfer gate electrode is disposed between the photoelectric conversion region and the floating diffusion region on each of the pixel regions. A dielectric layer is disposed on the semiconductor substrate and covers the transfer gate electrode. A plurality of active patterns spaced apart from each other is disposed on a top surface of the dielectric layer. A plurality of pixel transistors is disposed on corresponding active patterns. In a plan view, at least one of the active patterns overlaps a portion of the pixel isolation structure.