CCD solid-state imaging device, photographic apparatus and image data correction method

Abstract

This invention provides a CCD solid-state imaging device including: a semiconductor substrate; a plurality of photodiodes arranged in a two-dimensional array; a plurality of vertical charge transfer paths, each reading a signal charge from the photo diodes, wherein electron multiplication of the signal charge is performed in each of the vertical transfer paths; and a storage section that stores data indicating a multiplication factor of the electron multiplication, the multiplication factor being detected at each place of the vertical transfer paths in which the electron multiplication is performed.

Description

[0001] This application is based on the Japanese patent application 2007-95225 filed on March 30, 2007 and claims the priority of the Japanese patent application, and the entire disclosure of the Japanese patent application is incorporated herein by reference. Technical field [0002] The present invention relates to a CCD solid-state imaging device, and in particular to a CCD solid-state imaging device that amplifies signal charges by causing impact ionization on a vertical charge transfer path, a photographing device, and an image data correction method. Background technique [0003] In recent CCD solid-state imaging devices, the device becomes more and more refined and the amount of saturated charge per pixel becomes smaller and smaller, and when taking high-sensitivity photos of dark scenes, the amount of signal charge accumulated in each pixel will change. It's very small. As a result of this, signal amplification is required, but the floating diffusion amplifier (FDA) provid...

AI Technical Summary

Problems solved by technology

[0006] However, the vertical charge transfer path is provided for each pixel column of a plurality of pixels formed in a two-dimensional array on the surface of the semiconductor substrate, so that when the signal amplification factor is changed for each vertical charge transfer path, the signal amplification factor Differences between can cause fixed patterns and degrade the image quality of the image signal

It is extremely difficult to manufacture a solid-state imaging device that does not cause this difference, and the manufacturing cost of such a solid-state imaging device increases

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