Patent ID: 11862659
Assignee: HAMAMATSU PHOTONICS K.K.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A backside incident-type imaging element comprising:
a semiconductor substrate having a front surface and a back surface on an opposite side from the front surface, a ground potential being applied to the semiconductor substrate; and
a semiconductor layer formed on the front surface,
wherein the semiconductor layer has
a first element part including a light receiving portion configured to generate a signal charge according to incident light from a side of the back surface and configured to output a signal voltage corresponding to the signal charge, and
a second element part including an analog-digital converter configured to convert the signal voltage output from the first element part into a digital signal, and
a thickness of the semiconductor substrate in a first direction intersecting the front surface and the back surface is relatively thicker in a second region of the semiconductor substrate corresponding to the analog-digital converter when viewed in the first direction than in a first region of the semiconductor substrate corresponding to the light receiving portion when viewed in the first direction.