| 摘要 |
An image sensor includes a plurality of unit pixels. Each unit pixel has a photo diode for sensing external light to generate photo charges. A transfer transistor is connected to the photo diode for storing the photo charges generated in the photo diode into a floating diffusion region when being turned-on. An amplification transistor amplifies the photo charges stored into the floating diffusion region. A select transistor, connected to the amplification transistor, performs a switching operation. An output line, extended in a column direction, outputs the photo charges in accordance with the switching operation of the select transistor. The photo diode may be formed in such a manner to share the output line with its adjacent photo diode in a horizontal direction, so that the photo charges generated in the photo diode and its adjacent photo diode are outputted through the output line.
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