| 摘要 |
An image sensor includes a first substrate and a photodiode. A circuitry including a metal interconnection is formed over the first substrate. The photodiode is formed over a first substrate, and contacts the metal interconnection. The circuitry of the first substrate includes a transistor over the first substrate, an electrical junction region at a side of the transistor, and a first conduction type region. The first conduction type region is connected to the metal interconnection and contacts the electrical junction region.
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