Patent ID: 11869917
Assignee: QUANTUM-SI INCORPORATED
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An integrated circuit, comprising:
a photodetection region;
a charge storage region electrically coupled to the photodetection region and configured to receive charge carriers from the photodetection region;
a readout region electrically coupled to the charge storage region and configured to receive charge carriers from the charge storage region;
a drain region electrically coupled to the photodetection region and configured to receive charge carriers from the photodetection region and transfer the received charge carriers to a direct current (DC) voltage for draining the charge carriers from the photodetection region; and
an at least partially opaque and at least partially insulative layer disposed above or below at least a portion of the photodetection region, the at least partially opaque and at least partially insulative layer having a triangular-shaped opening configured to receive dopants therethrough,
wherein the photodetection region is configured to induce an intrinsic electric field in a first direction from the photodetection region to the drain region and from the photodetection region to the charge storage region.