ACTIVE PIXEL SENSOR WITH BOOSTING CIRCUIT IN CMOS IMAGE SENSOR

摘要

An active pixel sensor with a boosting circuit in a CMOS image sensor is provided to minimize a storage part of a storage node by forming the boosting circuit between a first transfer transistor and the storage node and/or between a second transfer transistor and a floating diffusion region. A photodiode part is used for receiving light and generating optical electric charges. A first transfer transistor part(110) is connected to the photodiode part in order to transfer the generated optical electric charges. A second transfer transistor part(110) is connected to the transfer transistor part in order to transfer the generated optical electric charges. A storage node part is connected between the first and second transfer transistors in order to store the optical electric charges of the first transfer transistor. A boosting circuit part(210) is connected between a gate terminal of the first transfer transistor and the storage node part.