Siloxane-Coated Quantum Dot Resin for Fine Lithography Patterns
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Solution Overview
Problem
Existing photosensitive resin compositions struggle to achieve high lithography resolution and favorable luminous properties, particularly in the context of miniaturized micro-LED displays, where further miniaturization and improved display clarity are demanded.
Innovation Solution
A photosensitive resin composition comprising a phenolic hydroxy group-containing silicone resin, a photo-acid generator, and a quantum dot with a surface coating layer containing siloxane, which enhances film formation and luminous properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional photosensitive resin compositions are used for lithography patterning, then the patterning process can be completed, but the lithography resolution is insufficient and luminous properties are compromised
Solution Approach 1:
The patent employs a composite resin system combining epoxy resin and phenolic resin in specific ratios (epoxy resin 30-70 mass%, phenolic resin 70-30 mass%). This composite material approach allows the resin to simultaneously achieve high lithography resolution through proper curing characteristics and maintain favorable luminous properties by balancing the optical and mechanical contributions of each resin component.
Solution Approach 2:
The patent optimizes the molecular weight parameters of the resin components (epoxy resin 100-10,000, phenolic resin 100-10,000) and their mixing ratios to achieve the desired balance between lithography resolution and luminous properties. By carefully controlling these parameters, the composition attains both high patterning precision and optical performance.
2Reliability
If the quantum dot content is increased to improve luminous properties, then luminous performance enhances, but the lithography resolution deteriorates
Solution Approach 1:
The patent optimizes the quantum dot content within the specific range of 5-80 mass% to achieve the optimal balance between luminous properties and lithography resolution. This parameter optimization ensures that sufficient quantum dots are present for high luminous performance while maintaining the resin's ability to form high-resolution patterns during lithography processing.
3Reliability
If the resin film strength is increased to improve reliability, then the cured film becomes more robust, but the lithography resolution and pattern fineness are compromised
Solution Approach 1:
The patent utilizes a composite resin system where epoxy resin provides strength and adhesion while phenolic resin contributes to lithography performance and pattern definition. This composite approach enables the cured film to simultaneously achieve high mechanical strength for reliability and fine pattern resolution for lithography applications.
Solution Approach 2:
The patent controls the molecular weight parameters of the resin components (both epoxy and phenolic resins within 100-10,000 range) to optimize the balance between film strength and pattern fineness. By adjusting these parameters, the resin achieves sufficient mechanical robustness while maintaining the ability to form fine lithographic patterns.
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 composition enables the formation of films with high lithography resolution and favorable luminous properties, suitable for patterning processes and light emitting devices.
Implementation Method 1
a photo-acid generator
Implementation Method 2
a phenolic hydroxy group-containing silicone resin
Implementation Method 3
a quantum dot, wherein the quantum dot has a surface coating layer containing siloxane
Data Source
AI summary
The present invention is a photosensitive resin composition including (A) a phenolic hydroxy group-containing silicone resin; (B) a photo-acid generator; and (C) a quantum dot, wherein the quantum dot has a surface coating layer containing siloxane. This can provide: a photosensitive resin composition capable of easily forming a film having high lithography resolution and favorable luminous properties; a photosensitive resin film obtained by using the photosensitive resin composition, and a photosensitive dry film; patterning processes using these; and a light emitting device obtained by using the photosensitive resin composition.