IMAGE SENSOR

摘要

An image sensor including a control circuit and a plurality of pixels, each pixel including: a photosensitive area, a substantially rectangular storage area adjacent to the photosensitive area, and a read area; first and second insulated vertical electrodes electrically connected to each other, opposite each other, and delimiting the storage area, the first electrode extending between the storage area and the photosensitive area, the second electrode including a bent extension opposite a first end of the first electrode, the storage area emerging onto the photosensitive area on the side of the first end, the control circuit being capable of applying a first voltage to the first and second electrodes to perform a charge transfer, and a second voltage to block said transfer.

主权项

1. An image sensor including a plurality of pixels, each pixel comprising:
a semiconductor substrate including a photosensitive area, an elongated storage area having a width and a length at least five times longer than the width and positioned adjacent to the photosensitive area, and a read area separated from the elongated storage area by a portion of the semiconductor substrate; a first insulated vertical electrode and a second insulated vertical electrode electrically connected to each other, extending in the semiconductor substrate opposite each other, and laterally delimiting the elongated storage area, the first insulated vertical electrode extending between the elongated storage area and the photosensitive area, the second insulated vertical electrode comprising a bent extension opposite a first end of the first insulated vertical electrode, the elongated storage area emerging onto the photosensitive area on the side of the first end and on said portion of the semiconductor substrate on the side of the second end of the first insulated vertical electrode, wherein the first and second insulated vertical electrodes are configured to receive a first voltage which permits a charge transfer from the photosensitive area to the elongated storage area, and receive a second voltage which blocks said charge transfer.