Patent ID: 6933493

Claim:
An image sensor, comprising: a substrate having an upper surface, a lower surface, and a slot penetrating through the substrate from the upper surface to the lower surface, the upper surface being formed with a plurality of first connection points, and the lower surface being formed with a plurality of second connection points; a metal sheet attached to the lower surface of the substrate and located under the slot of the substrate to form a cavity together with the slot of the substrate; a photosensitive chip formed with a plurality of bonding pads, the photosensitive chip being arranged within the cavity and mounted to the metal sheet; a plurality of wires for electrically connecting the bonding pads of the photosensitive chip to the first connection points of the upper surface of the substrate; and a transparent layer arranged on the upper surface of the substrate to cover the photosensitive chip so that the photosensitive chip may receive optical signals passing through the transparent layer.