Fine Metal Electrode Manufacturing via Organometallic Ink Patterning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for manufacturing fine metal electrodes, such as photolithography and laser patterning, face challenges in high costs, environmental concerns, and variability in production time and quality, particularly in forming complex patterns.
Innovation Solution
A method involving the use of organometallic ink coated on a base substrate, which is pre-baked to form nanoparticles, aligned with a photomask, and then irradiated with a laser to create a fine metal pattern, followed by cleaning and heat-treating to enhance conductivity and adhesion, reducing costs and environmental impact while improving productivity and reproducibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If photolithography is used to manufacture fine metal electrodes, then high quality and finest devices can be manufactured, but cost prices are increased and additional processes are necessary to remove noxious materials
Solution Approach 1:
The patent extracts and eliminates the harmful chemical exposure step from the traditional photolithography process. Instead of using chemical photoresist materials that generate noxious waste, the invention uses a photo-curable resin composition that cures upon light exposure without requiring chemical development or removal processes, thereby maintaining manufacturing precision while eliminating harmful chemical byproducts
Solution Approach 2:
The patent replaces expensive and environmentally harmful chemical photoresist materials with a photo-curable resin composition that can be easily applied and cured. This resin composition serves as a temporary patterning layer that is removed after transferring the pattern, functioning as a disposable element that eliminates the need for costly chemical processing and waste treatment
2Manufacturing precision
If photolithography is used to manufacture fine metal electrodes, then high quality devices can be manufactured, but cost prices are increased due to expensive equipments and additional processes
Solution Approach 1:
The patent extracts and eliminates multiple expensive process steps from traditional photolithography including chemical coating, chemical development, and etching processes. By using a photo-curable resin that directly patterns and transfers to the metal layer, the invention reduces the number of required equipment and process steps, thereby maintaining high manufacturing precision while significantly reducing cost price
Solution Approach 2:
The patent merges multiple separate processes into a single integrated process. The photo-curable resin composition simultaneously serves as the patterning layer, the protective layer during metal deposition, and the transfer medium. This consolidation of functions into one material system reduces the number of equipment needed and simplifies the manufacturing流程, thereby reducing cost price while maintaining manufacturing precision
3Ease of manufacture
If laser patterning is used to manufacture fine metal electrodes, then relatively simple process with cheaper equipments can be performed, but productivity is decreased in manufacturing complex patterns
Solution Approach 1:
The patent segments the complex patterning process into a simple light exposure step followed by a curing step. Instead of using complex laser scanning for each pattern feature, the invention uses a photomask that contains the entire complex pattern, allowing all features to be exposed simultaneously. This segmentation of the process into mask-based exposure and curing enables high productivity for complex patterns while maintaining ease of manufacture with simple equipment
4Ease of manufacture
If laser patterning is used to manufacture fine metal electrodes, then relatively simple process can be performed, but producing time may be changed due to pattern shape
Solution Approach 1:
The patent segments the patterning process into a single light exposure step using a photomask that contains the entire pattern. This allows all pattern features to be exposed simultaneously regardless of pattern shape or complexity, eliminating the sequential scanning required in laser patterning. The subsequent curing step completes the process uniformly, thereby maintaining simplicity of process while eliminating producing time variation caused by different pattern shapes
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 decreases production costs, maintains uniformity in production time, and enhances the reliability and reproducibility of fine metal patterns, allowing for the formation of finer size metal patterns with ease by controlling the width between mask patterns.
Implementation Method 1
The first base substrate on which the solution layer is formed is pre-baked, to self-produce a nanoparticle in the solution layer
Implementation Method 2
A laser is irradiated on the photomask. The photomask is detached from the base substrate on which the solution layer is formed. The solution layer is cleaned
Implementation Method 3
the nanoparticles into which the laser is irradiated may be sintered to be a metal layer
Implementation Method 4
a heat may be proved to the metal pattern using one of a heat source, a heating oven, a microwave oven and a light lamp, to evaporate an organic material in the metal pattern
Data Source
AI summary
In a method for manufacturing a fine metal electrode, the method includes coating an organometallic ink on a first base substrate to form a solution layer. The first base substrate on which the solution layer is formed is pre-baked, to self-produce a nanoparticle in the solution layer. The first base substrate on which the solution layer is formed is aligned with a photomask. A laser is irradiated on the photomask. The photomask is detached from the base substrate on which the solution layer is formed. The solution layer is cleaned.