Imaging apparatus chip set and image pickup system

Abstract

The invention relates to an imaging apparatus chip set and an image pickup system. An imaging apparatus chip set is provided with an imaging chip (11) having a plurality of unit pixels (21) and at least a part of a peripheral circuit section (22); and a DSP chip (13) having a digital processing section (31) for performing conversion processing to an imaging signal and the reset of the peripheral circuit section (22). On a first substrate, a first wiring layer is formed. The first wiring layer is of not more than two layers in a photosensitive region (20) wherein the unit pixels (21) are arranged, and is of not more than three layers in other regions.

Description

technical field [0001] The present invention relates to a chip set for an image pickup device and an image pickup system, and particularly relates to a chip set including a MOS type image pickup chip and a digital signal processing chip used in a digital camera or the like, and an image pickup system using the chip set. Background technique [0002] In recent years, along with the improvement in performance and miniaturization of semiconductor devices, one-chip (one-chip) integration of various functions in one chip has been promoted. In the field of solid-state imaging devices, also due to the rapid progress of digital signal processing technology and CMOS microfabrication technology, the following single-chip CMOS camera can be realized. The single-chip CMOS camera is integrated on a silicon substrate. An imaging element that converts the optical signal to the imaging surface into an electrical signal and takes it out, and a digital signal processing device (DSP) capable o...

AI Technical Summary

Problems solved by technology

It will be difficult to reduce the number of wiring layers of the camera chip including peripheral circuits

In addition, most of the peripheral circuits are digital circuits, and when such peripheral circuits are installed in the imaging chip, there is a problem that it cannot be miniaturized sufficiently.

[0010] A method of providing a peripheral circuit for driving pixels in a DSP chip without providing the peripheral circuit in the imaging chip is also conceivable, but in this case, there is a problem that a large number of wirings are required to connect the imaging chip and the DSP chip.

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