Graphene-Doped Cycloolefin Polymer for Semiconductor Containers
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Solution Overview
Problem
The semiconductor industry faces challenges with materials used in containers, such as high manufacturing costs, environmental pollution, and performance issues like low humidity retention, fragility, and high water absorption, particularly with carbon nanotubes, which are expensive and environmentally harmful.
Innovation Solution
A composite material is developed by doping cycloolefin polymers with graphene nanoplatelets or graphene oxide at a weight percentage of 0.6% to 8.0%, providing improved properties like light weight, high dimensional stability, impact resistance, and low gas release, while adjusting conductivity levels for anti-static or conductive properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If carbon nanotubes are used to improve conductivity and anti-static properties, then the functional performance is improved, but the manufacturing cost increases significantly
Solution Approach 1:
The patent replaces expensive carbon nanotubes with cheaper graphene nanoplatelets as the conductive filler material. Graphene nanoplatelets provide similar anti-static and conductive properties at a lower cost, making the semiconductor container more economically viable while maintaining the required functional performance
Solution Approach 2:
The patent optimizes the concentration of graphene nanoplatelets in the cycloolefin polymer matrix to achieve the desired anti-static properties. By carefully controlling the amount of graphene additive, the patent achieves effective conductivity and anti-static status without excessive material cost, resolving the contradiction between performance and manufacturing cost
2Reliability
If excessive carbon nanotubes are added to improve conductivity, then the anti-static properties are enhanced, but environmental pollution increases
Solution Approach 1:
The patent substitutes carbon nanotubes with graphene nanoplatelets, which are more environmentally friendly. Graphene nanoplatelets can be produced with fewer environmental impacts and are less prone to causing pollution, thereby reducing the harmful factors while maintaining the anti-static functionality
Solution Approach 2:
The patent converts the potential environmental harm of carbon nanotube production and disposal into a benefit by using graphene nanoplatelets, which have superior environmental compatibility. This substitution maintains the anti-static performance while eliminating the pollution issue associated with excessive carbon nanotube use
3Productivity
If polycarbonate is used as container material, then the manufacturing yield is improved, but water absorption increases leading to short humidity retention time
Solution Approach 1:
The patent uses cycloolefin polymer as a composite material that combines the advantages of high manufacturing yield with low water absorption. The cycloolefin polymer matrix provides excellent processability and yield while inherently possessing low moisture uptake, thus achieving both high productivity and long humidity retention time without the trade-off present in polycarbonate
4Strength
If liquid crystal polymer is used as container material, then hardness and heat distortion temperature are improved, but the material becomes fragile and costly
Solution Approach 1:
The patent replaces expensive liquid crystal polymer with a more cost-effective cycloolefin polymer system. The cycloolefin polymer provides adequate mechanical strength and heat resistance at a lower material cost, making the container more economically viable while maintaining the required performance characteristics
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 composite material significantly reduces the use and cost of carbon nanotubes, maintains low humidity retention, and enhances impact resistance and dimensional stability, while minimizing environmental pollution, achieving equivalent or better performance compared to carbon nanotube-doped materials.
Implementation Method 1
a composite material including a cycloolefin material or a cyclic block copolymer (CBC), which are doped with a graphene material
Implementation Method 2
the water absorption of said material is greater than 0.25%, resulting in the low humidity retention time is short
Data Source
AI summary
The present invention provides a semiconductor container which is made of composite material. The composite material is selected from a group consisting of a graphene material doped cycloolefin copolymer (COC), a graphene material doped cycloolefin polymer (COP) and a graphene material doped cyclic block copolymer (CBC). The content of the graphene material ranges from 0.6% to 8.0% by weight in each composite material.