Patent ID: 9691806
Date: 2017-06-27
CPC Classifications: H01L,H04N

Claim:
1. A semiconductor integrated circuit comprising: first and second substrates; a first part of an analog signal circuit on the first substrate, the analog signal circuit generating an analog signal, the first part including at least a transfer transistor, a reset transistor, a select transistor, and an amplification transistor formed as a follower circuit, such that a drain of the amplification transistor is connected to a power supply, a source of the amplification transistor is connected to a drain of the select transistor, and a gate of the amplification transistor is connected to a floating diffusion; a second part of the analog signal circuit on the second substrate, the second part including a current supply, the current supply being used as a load for the follower circuit; a digital signal circuit on the second substrate, the digital signal circuit converting the analog signal into a digital signal; a connection between the first and second substrates connecting the first and second parts of the analog signal circuit to each other.