Resin Composition Adhesion and Storage Stability via Organic Salt
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Solution Overview
Problem
Resin compositions described in existing patents face issues with increased viscosity due to promoted reactions at room temperature and poor compatibility between the resin and additives, leading to storage stability problems.
Innovation Solution
A resin composition comprising a soluble resin, an organic salt formed from an organic compound with a carboxy group and an organic compound with an amino group, and a solvent, where the organic salt is present in an amount of 0.01 to 10 parts by mass per 100 parts by mass of the soluble resin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a resin composition containing a basic nitrogen containing compound or a thiol derivative is used to improve adhesion to metal layers, then substrate adhesion is improved, but the resin undergoes promoted reaction at room temperature resulting in increased viscosity and poor storage stability
Solution Approach 1:
The patent changes the chemical parameter of the additive from traditional basic nitrogen containing compounds or thiol derivatives to a specific organic salt compound with controlled reactivity. The organic salt maintains adhesion promotion capability while its unique structure prevents excessive reaction at room temperature, thus improving storage stability without sacrificing substrate adhesion.
Solution Approach 2:
The patent creates a composite resin system by combining the soluble resin with a specifically designed organic salt compound. This composite approach allows the organic salt to provide adhesion promotion functionality while its molecular structure ensures compatibility and stability within the resin matrix, resolving the contradiction between adhesion and storage stability.
2Manufacturing precision
If a resin composition containing a photosensitizer is used to achieve fine pattern processability, then manufacturing precision is improved, but compatibility between the resin and additives deteriorates leading to storage stability problems
Solution Approach 1:
The patent modifies the additive parameters by using an organic salt with specific molecular characteristics that are compatible with photosensitizers. This allows the resin composition to maintain fine pattern processability through photolithography while the organic salt prevents unwanted side reactions, ensuring storage stability even in the presence of photosensitizer additives.
Data Source
AI summary
A resin composition including: (A) a soluble resin, (B) an organic salt, and (C) a solvent, wherein the (B) organic salt is an organic salt formed from an organic compound having a carboxy group and an organic compound having an amino group, and wherein the amount of the (B) organic salt is 0.01 to 10 parts by mass with respect to 100 parts by mass of (A) the soluble resin. Provided is a resin composition having excellent substrate adhesion and excellent storage stability.