Patent ID: 11967602
Assignee: OMNIVISION TECHNOLOGIES, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 11:
12. An image sensor including a plurality of repeat units, each repeat unit included in the plurality of repeat units comprising:
a first quadrant including to a multi-pixel detector to gather phase information for phase detection autofocus, wherein the multi-pixel detector includes:
a deep trench isolation structure forming a perimeter boundary of the first quadrant;
a first photodiode region, a second photodiode region, a third photodiode region, and a fourth photodiode region collectively arranged in two rows and two columns to form a two-by-two array of pixels laterally surrounded by the deep trench isolation structure; and
a multi-finger isolation structure including four partial isolation structures, each disposed between respective pairs of adjacent photodiode regions included in the two-by-two array of pixels, and wherein each of the four partial isolation structures extend laterally from the deep trench isolation structure, defining the perimeter boundary, towards a center of the two-by-two array of pixels without directly contacting one another.