Patent ID: 8345136
Filing Date: 2013-01-01
Classification: H01L,H04N

Abstract:
1. A complementary metal-oxide-semiconductor (CMOS) image sensor comprising: a first light-receiving unit to convert light into charge; a first floating diffusion region to receive a charge from the first light-receiving unit which is transmitted through a first transfer transistor, to generate a first potential corresponding to the charge; a second floating diffusion region to receive a charge from the first floating diffusion region which is transmitted through a second transfer transistor, to generate a second potential, wherein a wide dynamic range signal is acquired from the first floating diffusion region, a high-sensitivity signal is acquired from the second floating diffusion region, and the acquired signals are synthesized and output, and wherein the first floating diffusion region is connected to a first reset transistor and the second floating diffusion region is disposed between the second transfer transistor and a second reset transistor, and the first and second floating diffusion regions are not connected to a capacitor.