Patent ID: 7227575
Filing Date: 2007-06-05
Classification: H01L

Abstract:
1. A linear image sensor chip comprising: a semiconductor substrate having an elongated shape; an image pickup section formed on said semiconductor substrate, said image pickup section including (i) at least one photodiode group composed of a plurality of photodiodes formed only in a central area of a surface of said semiconductor substrate along a longitudinal direction of said semiconductor substrate and (ii) a charge transfer element provided for each said photodiode group; a peripheral circuit section formed in a peripheral area of said surface of said semiconductor substrate, said peripheral area being external to said central area in the longitudinal direction of the semiconductor substrate; a plurality of bonding pads formed on the surface of said semiconductor substrate externally, in the longitudinal direction, to the central area of the surface of the semiconductor substrate, each of said bonding pads having an exposed central surface area, wherein each of said bonding pads is disposed outer than said peripheral circuit section with respect to the longitudinal direction of said semiconductor substrate; a plurality of metal lines formed on the surface of said semiconductor substrate, each of said metal lines having an end connected to one of said bonding pads and another end connected to said peripheral circuit or said charge transfer element; a light-suppressing layer formed above said semiconductor substrate and covering a peripheral area of each of said plurality of photodiodes; and a passivation layer formed to cover an outer surface area of each of said bonding pads.