Wiring Pattern Exposure for Long Flexible Substrates
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Solution Overview
Problem
The challenge is to reduce the vast amount of data required for drawing continuous long wiring patterns on flexible substrates, such as those used in transportation machines, where existing methods face inefficiencies due to the need for extensive data handling for patterns that remain constant in the width direction over long lengths.
Innovation Solution
A drawing method and device that differentiate between regions on the substrate, using two-dimensional image data for areas where patterns change in the width direction and one-dimensional image data for areas where they do not, reducing data usage by conveying the substrate and applying exposure based on specific length information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If two-dimensional image data is used for all regions of the substrate, then the pattern can be drawn accurately, but the data amount becomes excessively large for long wiring patterns
Solution Approach 1:
The substrate is divided into two types of regions: first regions where the pattern in the width direction changes in the longitudinal direction, and second regions where the pattern in the width direction does not change. This segmentation allows different data formats to be applied to different regions, reducing overall data amount while maintaining accuracy where needed.
Solution Approach 2:
Different data representation methods are applied to different regions based on their specific characteristics. Two-dimensional image data is used for first regions requiring full pattern detail, while one-dimensional image data combined with length information is used for second regions with repeating patterns, optimizing both accuracy and data efficiency locally.
2Productivity
If the substrate is conveyed continuously without stopping, then productivity is improved, but data handling complexity increases due to the need for parallel processing
Solution Approach 1:
The drawing data is segmented into two-dimensional image data for first regions and one-dimensional image data with length information for second regions. This segmentation simplifies the data structure for repeating patterns, making continuous processing more manageable despite the continuous conveyance of the substrate.
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
This approach significantly reduces the overall data required for drawing long wiring patterns, enabling efficient and streamlined processing while maintaining pattern continuity, thus addressing the data inefficiencies in existing methods.
Implementation Method 1
irradiating a substrate having a long sheet shape with a beam for exposure while conveying the substrate
Data Source
AI summary
A drawing method for drawing a wiring pattern on a substrate is provided. The wiring pattern includes first regions, in which a pattern in the width direction of the substrate changes in the longitudinal direction of that, and second regions, in which a pattern in the width direction does not change in the longitudinal direction. The drawing data includes two-dimensional image data representing a two-dimensional pattern of the first regions, one-dimensional image data representing a one-dimensional pattern in the width direction of the second regions, and information representing lengths of the second regions. The method includes: drawing the pattern of the first regions by scanning the beam based on the two-dimensional image data and conveying the substrate; and drawing the pattern of the second regions by irradiating the substrate with the beam based on the one-dimensional image data and conveying the substrate based on the information representing lengths.