| 摘要 |
PURPOSE: A pixel of image sensor having an electrical controlled pinning layer is provided to obtain a uniform pinning between pixels by supplying a uniform voltage to a photo diode pinning layer. CONSTITUTION: An image sensor comprises a pinned photodiode(460) and a voltage supply unit. The pinned photodiode comprises a pinning layer. The voltage supply unit is connected to the pinning layer. The voltage supply unit supplies power to the pinning layer in the depletion of the pinned photodiode. A field stop doped region(404b) is connected to the pinning layer. The voltage is provided to the field stop doped region.
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