Conductive Pattern Drawing Data Generation for Inkjet Board Manufacturing
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Solution Overview
Problem
Current methods for manufacturing wiring boards, such as lithography techniques, are costly and time-consuming due to the complexity of conductive layer formation, and existing drawing apparatuses using inkjet methods face challenges in accurately forming conductive patterns without defects.
Innovation Solution
A board manufacturing system that includes an information processing apparatus and a drawing apparatus, where the information processing apparatus generates drawing data for the drawing apparatus using a computer program to compute and control the shape of conductive patterns formed by conductive liquid droplets, incorporating tools for image data generation, resolution decision, design rule checking, and modification to ensure accurate pattern formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If lithography technique is used to manufacture wiring boards, then manufacturing precision is improved, but device complexity and manufacturing time increase
Solution Approach 1:
The patent extracts and eliminates the complex lithography process steps (conductive layer formation, resist application, exposure, development, etching) and replaces them with a direct inkjet drawing method that forms conductive patterns by directly discharging conductive liquid droplets onto the board, thereby reducing device complexity while maintaining manufacturing precision
Solution Approach 2:
The patent replaces the mechanical lithography system with an inkjet printing system that uses controlled liquid droplet discharge to form conductive patterns, substituting a simpler mechanical process for the complex multi-step lithography process
2Manufacturing precision
If lithography technique is used to manufacture wiring boards, then manufacturing precision is improved, but loss of time increases
Solution Approach 1:
The patent performs preliminary actions by pre-calculating and pre-generating the drawing data in raster format before the actual drawing process, converting the conductive pattern design into ready-to-print droplet discharge instructions, which accelerates the manufacturing process while maintaining precision
Solution Approach 2:
The patent enables continuous drawing operation by directly forming conductive patterns through continuous or rapid droplet discharge without the interruptive steps of lithography (resist application, exposure, development, etching), thereby reducing manufacturing time while preserving manufacturing precision
3Device complexity
If drawing apparatus uses inkjet method to form conductive patterns, then device complexity is reduced, but manufacturing precision deteriorates due to potential defects
Solution Approach 1:
The patent performs preliminary actions by pre-calculating the exact droplet discharge positions and patterns before manufacturing, generating comprehensive drawing data that specifies each droplet's location and characteristics, thereby ensuring high manufacturing precision while maintaining process simplicity
Solution Approach 2:
The patent incorporates feedback mechanisms through design rule checking and verification processes that review the generated drawing data before actual drawing, allowing for correction of potential defects and ensuring manufacturing precision is maintained throughout the simplified inkjet process
4Loss of time
If drawing apparatus directly forms conductive patterns, then manufacturing time is reduced, but manufacturing precision deteriorates due to defects in conductive patterns
Solution Approach 1:
The patent performs preliminary calculation and generation of accurate drawing data before the rapid drawing process, ensuring that the conductive pattern design is optimized and verified in advance, which allows for fast manufacturing without sacrificing precision or increasing defect rates
Solution Approach 2:
The patent incorporates verification and checking processes that provide feedback on the drawing data and formed patterns, allowing for real-time or pre-flight detection of potential defects and correction of issues before they affect manufacturing precision, thereby enabling rapid production with high quality
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 system efficiently generates data for the drawing apparatus, allowing for accurate and efficient formation of conductive patterns on boards, reducing the risk of defects and improving manufacturing efficiency by converting design data into raster format, deciding optimal resolution, and performing design rule checks.
Implementation Method 1
a drawing apparatus that performs drawing on the board using conductive liquid droplets
Data Source
Figure 1
Figure 2A~2C
Figure 3A~3B
AI summary
An information processing apparatus is configured to compute the shape of a conductive pattern to be formed on a board by a drawing apparatus that performs drawing on the board using conductive liquid droplets. The information processing apparatus includes an image data generation unit configured to generate image data in which dots each having a diameter determined according to a drawing condition of a conductive pattern by the drawing apparatus are arranged at respective positions which are indicated by data of a conductive pattern and at which conductive liquid droplets are to be landed.