Patent ID: 6031274
Filing Date: 2000-02-29
Classification: H01L

Abstract:
A back irradiation type light-receiving device, in which a charge-reading section having a one-dimensional or two-dimensional arrangement is formed on a first surface of a semiconductor thin plate mainly composed of silicon, for detecting an energy of an electromagnetic wave or charged particle incident on a second surface of said semiconductor thin plate, said second surface being a back side of said first surface, said device comprising:a reinforcement member disposed on said first surface side of said semiconductor thin plate;a field oxide film, formed in contact with said reinforcement member around a region where said charge-reading section is formed, exposing a surface thereof opposing an interface with respect to said reinforcement member while excluding at least a peripheral portion of said charge-reading section;a polysilicon lead formed on said charge-reading section and at a region extending from said charge-reading section at the interface between said field oxide film and said reinforcement member to the exposed region of said field oxide film; anda metal lead made of aluminum or an alloy or compound of aluminum, formed on the exposed region of said field oxide film, and physically and electrically direct-connected to said polysilicon lead, said metal lead having a bonding pad portion for external connection on said first surface side.