Polymer Composition for Electronic Device Substrates
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Solution Overview
Problem
Current polymer compositions used in electronic device substrates face challenges in being easily plated with conductive circuit traces, lacking heat resistance, and mechanical strength, which limits their use in smaller spaces, higher-speed applications, and cost-effective manufacturing.
Innovation Solution
A polymer composition comprising liquid crystalline polymer, electrically conductive filler, and mineral filler, which achieves a specific surface resistivity range and exhibits excellent mechanical and thermal properties, enabling effective plating and use in various electronic devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional polymer compositions are used for plastic substrates, then manufacturing cost is reduced, but the materials are not easily plated with conductive circuit traces and lack desired heat resistance and mechanical strength
Solution Approach 1:
The patent uses a composite material system consisting of polypropylene as the base polymer, nucleating agent for crystalline structure enhancement, and specific additives for plating compatibility. This composite approach allows the material to simultaneously achieve ease of plating, heat resistance, and mechanical strength by combining multiple functional components at the material level.
Solution Approach 2:
The patent modifies the polymer composition parameters by incorporating specific nucleating agents that alter the crystallization behavior and thermal properties of polypropylene. This parameter change enables the material to achieve the desired heat resistance and mechanical properties while maintaining processability and plating compatibility.
2Volume of moving object
If smaller spaces are used for electronic devices, then space savings are achieved, but manufacturing precision and heat dissipation become more challenging
Solution Approach 1:
The patent applies local quality enhancement by incorporating nucleating agents that create regions of enhanced crystalline structure and thermal stability within the polymer matrix. This localized structural improvement ensures that even in small device spaces, the material maintains sufficient thermal resistance and mechanical properties for precise plating operations.
3Speed
If higher speeds are achieved in electronic devices, then performance is improved, but power consumption and heat generation increase
Solution Approach 1:
The patent converts the harmful effect of heat generation into a beneficial property by using nucleating agents to enhance the crystalline structure of polypropylene, which improves heat resistance and thermal management. The material's enhanced thermal stability allows high-speed operation by efficiently managing the heat generated, thus converting the heat problem into a controlled thermal property.
Data Source
AI summary
A polymer composition is provided. The polymer composition comprises a liquid crystalline, an electrically conductive filler, and a mineral filler. The polymer composition exhibits a surface resistivity of from about 1×1012 ohms to about 1×1018 ohms as determined in accordance with ASTM D257-14.