Imaging Sensor Relay Electrodes Reduce Coupling Noise
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Solution Overview
Problem
Existing imaging apparatuses with photoelectric conversion devices face challenges in improving image quality due to noise components in imaging signals, which affect the S/N ratio and overall image quality.
Innovation Solution
The introduction of relay electrodes on the sensor substrate to electrically connect between driving devices and signal lines, reducing coupling capacity and noise components in imaging signals, thereby enhancing image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If relay electrodes are introduced to reduce coupling capacity between photoelectric conversion devices and signal lines, then noise components in imaging signals are reduced and image quality is improved, but device complexity increases
Solution Approach 1:
The patent introduces relay electrodes as intermediary elements between the photoelectric conversion devices and the signal lines. These relay electrodes serve as intermediate connection points that reduce the direct coupling capacity between the imaging pixels and the signal transmission lines, thereby reducing noise components in the imaging signals while maintaining electrical connectivity.
Solution Approach 2:
The patent segments the electrical connection path by introducing relay electrodes that divide the direct connection between photoelectric conversion devices and signal lines into multiple stages. This segmentation allows for reduced coupling capacity and noise transmission while maintaining the functional connectivity of the imaging system.
2Reliability
If relay electrodes are added to electrically connect driving devices and signal lines, then noise reduction is achieved, but manufacturing complexity increases
Solution Approach 1:
The patent merges the relay electrode formation process with existing manufacturing steps by integrating the relay electrodes into the interlayer insulating film structure. The relay electrodes are formed in conjunction with the formation of interlayer insulating films and conductive patterns, allowing multiple functions to be achieved in a unified manufacturing process rather than as separate additive steps.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The use of relay electrodes effectively reduces noise in imaging signals, improving the S/N ratio and resulting in improved image quality without increasing manufacturing costs or complexity.
Implementation Method 1
relay electrodes electrically connecting between the driving devices and the signal lines to relay between them... coupling capacity formed between the photoelectric conversion devices and the signal lines are reduced
Data Source
AI summary
An imaging apparatus includes: a sensor substrate, wherein the sensor substrate has plural photoelectric conversion devices and driving devices thereof formed on a substrate, signal lines for reading imaging signals obtained in the photoelectric conversion devices through the driving devices and relay electrodes electrically connecting between the driving devices and the signal lines to relay between them.