Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 20, 2010
Patent Application Number
12333391
Date Filed
December 12, 2008
Patent Primary Examiner
Patent abstract
An image sensor can include a first substrate, an insulating layer, a photodiode, and a via plug. A circuitry including an interconnection can be formed on the first substrate. The insulating layer is formed over the first substrate so that the insulating layer covers the interconnection. The photodiode is formed in a crystalline semiconductor layer and then bonded to the first substrate while contacting the insulating layer. The via plug is provided by removing portions of the photodiode and the insulating layer to expose an upper portion of the interconnection to form a via hole, and filling the via hole with a conductive metal. The via plug electrically connects the photodiode to the interconnection.
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