Patent ID: 9716120
Date: 2017-07-25
CPC Classifications: H01L

Claim:
1. An image sensor, comprising: a semiconductor substrate including a first photo-sensing device and a second photo-sensing device, wherein the first and second photo-sensing devices are integrated in the semiconductor substrate, the first photo-sensing device and the second photo-sensing device vertically overlap with each other in a thickness direction of the semiconductor substrate, the first photo-sensing device is configured to sense a first wavelength spectrum of visible light, and the second photo-sensing device is configured to sense a second wavelength spectrum of visible light; and a third photo-sensing device on the semiconductor substrate and configured to selectively sense a third wavelength spectrum of visible light, wherein the third wavelength spectrum of visible light is a longer wavelength spectrum of visible light than the first wavelength spectrum of visible light and the second wavelength spectrum of visible light.