Resin Composition for Printed Circuit Boards
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Solution Overview
Problem
High Tg laminates improve elastic modulus during reflow, reducing semiconductor package warpage but lead to heat resistance deterioration and moldability issues due to crosslink density and void formation after moisture absorption, posing reliability challenges in electronic materials.
Innovation Solution
A resin composition comprising a maleimide compound, silane compounds with carbon-carbon unsaturated bonds or epoxy skeletons, and an inorganic filler, which enhances adhesion and dispersibility, improving heat resistance and moldability in metal foil-clad laminates and printed circuit boards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If high Tg resin composition is used to improve elastic modulus during reflow, then warpage of semiconductor packages is reduced, but heat resistance deteriorates and void formation occurs after moisture absorption
Solution Approach 1:
The patent changes the chemical composition parameters of the resin system by incorporating specific silane compounds (with carbon-carbon unsaturated bonds or epoxy skeletons) and maleimide compounds in controlled ratios. This modifies the crosslinking behavior and network structure to achieve balanced performance: sufficient elastic modulus during reflow while maintaining heat resistance after moisture absorption through optimized molecular architecture
Solution Approach 2:
The patent creates a composite resin system combining multiple components: maleimide compounds, silane compounds with specific functional groups, and inorganic fillers. This composite approach allows the material to exhibit both high elastic modulus during processing and maintained heat resistance after moisture exposure, as the different components work synergistically to prevent void formation while providing mechanical support
2Strength
If high crosslink density is achieved to improve elastic modulus, then warpage is reduced, but moldability deteriorates and void formation occurs
Solution Approach 1:
The patent optimizes the crosslink density parameter by controlling the types and ratios of silane compounds and maleimide compounds used. The specific selection of silane compounds with carbon-carbon unsaturated bonds or epoxy skeletons, combined with maleimide compounds, allows achieving adequate crosslinking for high elastic modulus while maintaining appropriate moldability during manufacturing processes
Solution Approach 2:
The patent creates different local properties within the resin system: the silane compounds provide crosslinking zones for structural integrity and elastic modulus, while the maleimide compounds and other resin components maintain regions with appropriate flow characteristics for moldability. This spatial and functional differentiation allows simultaneous achievement of high strength and ease of manufacture
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 resin composition achieves excellent heat resistance after moisture absorption and moldability, ensuring insulation reliability and reducing void formation, thereby enhancing the performance of metal foil-clad laminates and printed circuit boards.
Implementation Method 1
a silane compound having a carbon-carbon unsaturated bond and a hydrolyzable group or a hydroxy group
Implementation Method 2
a silane compound having an epoxy skeleton and a hydrolyzable group or a hydroxy group
Implementation Method 3
a silane compound having an epoxy skeleton and a hydrolyzable group or a hydroxy group, and a maleimide compound
Data Source
AI summary
It is intended to provide a resin composition that serves as a raw material for a printed circuit board excellent in heat resistance after moisture absorption and is excellent in moldability. The resin composition of the present invention contains a maleimide compound, a silane compound having a carbon-carbon unsaturated bond and a hydrolyzable group or a hydroxy group, a silane compound having an epoxy skeleton and a hydrolyzable group or a hydroxy group, and an inorganic filler.


