Mesh Electrode Sensing Unit for Failure Analysis and Short-Circuit Reduction
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Solution Overview
Problem
Existing sensing units face challenges in performing failure analysis and minimizing potential short circuit points between sensing electrodes, which affects their reliability and efficiency.
Innovation Solution
The sensing unit design includes first and second sensing electrodes with mesh lines of different line widths, conductive patterns, and identification patterns, along with a connection electrode that does not overlap with disconnection areas, allowing for easy distinction and analysis of failures and minimizing short circuit points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If sensing electrodes are designed with uniform mesh lines, then manufacturing is simplified, but failure analysis becomes difficult and short circuit points cannot be easily identified
Solution Approach 1:
The patent applies local quality by making the line widths of mesh lines different in specific regions where failures or short circuits may occur. This allows failure analysis personnel to easily identify and locate problematic areas without changing the overall manufacturing process, thus resolving the contradiction between manufacturing simplicity and failure analysis capability.
2Reliability
If sensing electrodes are designed with different line widths, then failure analysis becomes easier, but manufacturing complexity increases
Solution Approach 1:
The patent implements local quality by varying line widths only in specific regions rather than throughout the entire sensing electrode structure. This localized approach maintains manufacturing simplicity while providing the differentiation needed for effective failure analysis.
3Reliability
If connection electrode overlaps with disconnection area, then electrical connection is improved, but short circuit risk increases
Solution Approach 1:
The patent applies the taking out principle by extracting the connection electrode from the disconnection area, positioning it in a separate location. This spatial separation eliminates the risk of short circuits while maintaining effective electrical connection between sensing electrodes through alternative pathways.
Data Source
AI summary
Provided is a sensing unit including first sensing electrodes arranged along a first direction in a sensing area, and second sensing electrodes arranged along a second direction intersecting the first direction. Each of the first sensing electrodes includes a plurality of first mesh lines, and each of the second sensing electrodes includes a plurality of second mesh lines. A line width of the first mesh lines is different from a line width of the second mesh lines.