Actinic Ray-Sensitive Resin Copolymerization for Etching Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a demand for a method that can produce actinic ray-sensitive or radiation-sensitive resin compositions with high roughness performance and high etching resistance, while also enabling easy and precise production, which existing methods have not adequately addressed.
Innovation Solution
A method involving the polymerization of compounds represented by General formulas (P-1) and (A-1), using specific monomers and solvents, and incorporating a step of cation exchange to produce a resin with acid-decomposable units, which suppresses excessive acid spreading and enhances etching resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional polymerization methods are used to produce actinic ray-sensitive resin, then production process is simple, but the resin cannot provide both high roughness performance and high etching resistance performance
Solution Approach 1:
The patent segments the resin structure into distinct functional units: acid-generating units from compound (P-1) and etching resistance units from compound (A-1). This segmentation allows each unit to independently contribute to specific performances (acid generation for pattern formation, etching resistance for pattern fidelity) without interfering with each other, enabling both high roughness performance and high etching resistance performance to be achieved simultaneously through controlled copolymerization
Solution Approach 2:
The patent creates a composite resin system by copolymerizing two different monomeric compounds with complementary functions. Compound (P-1) provides acid-generating capability while compound (A-1) provides etching resistance. The resulting copolymer resin combines these functions at the molecular level, achieving synergistic performance that neither component could provide alone, thus resolving the contradiction between pattern performance and production feasibility
2Manufacturing precision
If existing resin composition methods are used, then production is easier, but high roughness performance and high etching resistance performance cannot be achieved simultaneously
Solution Approach 1:
The patent applies local quality by incorporating etching resistance units (from compound A-1) specifically at regions where pattern fidelity is needed, while acid-generating units (from compound P-1) are distributed throughout to enable pattern formation. This localized functional distribution allows precise control over different aspects of pattern performance (roughness from acid generation, etching resistance from protective units) within the same resin matrix, achieving high manufacturing precision without excessive process complexity
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 method enables the production of resin compositions that form patterns with high roughness and etching resistance, facilitating precise and cost-effective production of actinic ray-sensitive films.
Implementation Method 1
a compound that is decomposed by irradiation with an actinic ray or a radiation to generate acid
Implementation Method 2
polymerizing a compound represented by General formula (P-1) below and a copolymerizable monomer compound
Implementation Method 3
M+ represents a lithium cation, a potassium cation, or an ammonium cation
Data Source
AI summary
A method for producing a resin having a repeating unit that is decomposed by irradiation of an actinic ray or a radiation to generate acid, the method including polymerizing a specific compound represented by General formula (P-1) and a copolymerizable monomer compound, a method for producing an actinic ray-sensitive or radiation-sensitive resin composition, a pattern forming method, and a resin corresponding to a reaction intermediate of the resin.