Acrylic Binder Graphene Multilayer Ceramic Capacitor
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Solution Overview
Problem
Existing multilayer ceramic capacitors face issues with cracking and blistering, and conventional binders like PVB-based binders leave residual carbon, affecting mechanical and electrical properties.
Innovation Solution
A multilayer electronic component using an acrylic copolymer-graphene composite binder, where graphene particles are integrated into the dielectric layers to enhance mechanical strength and reduce residual carbon, with a stacked structure of internal electrodes and dielectric layers, and external electrodes connected to internal electrodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional PVB-based binders are used in dielectric layers, then the dielectric layers can be formed, but residual carbon remains affecting mechanical and electrical properties
Solution Approach 1:
The patent changes the chemical composition parameters of the binder from PVB-based to acrylic-based materials. This parameter change eliminates residual carbon formation while maintaining the dielectric layer formation capability, thereby improving mechanical and electrical properties without the harmful residual carbon effect
Solution Approach 2:
The patent uses composite materials consisting of acrylic polymers combined with specific inorganic fillers and additives. This composite approach replaces conventional PVB binders, eliminating residual carbon while providing the necessary mechanical strength and dielectric properties for the dielectric layers
2Reliability
If multilayer ceramic capacitors are manufactured with conventional binders, then the components can be assembled, but cracking and blistering occur reducing reliability
Solution Approach 1:
The patent changes the binder composition parameters from conventional PVB to acrylic-based materials with specific molecular weight and functional group characteristics. This parameter change improves the mechanical strength of dielectric layers while preventing cracking and blistering, thereby enhancing overall reliability
Solution Approach 2:
The patent employs acrylic-based binders that completely decompose during the sintering process without leaving residual carbon. This approach eliminates the long-term harmful effects of residual binders, providing clean dielectric layers with improved reliability and mechanical strength
3Volume of moving object
If the multilayer electronic component is miniaturized, then the component size is reduced, but mechanical properties deteriorate
Solution Approach 1:
The patent uses composite dielectric materials combining acrylic-based binders with inorganic fillers and graphene particles. This composite structure provides enhanced mechanical strength that enables miniaturization while maintaining or improving mechanical properties, as the composite structure distributes stress more effectively in smaller components
Solution Approach 2:
The patent applies graphene particles specifically at grain boundaries of dielectric materials. This local quality enhancement provides targeted mechanical reinforcement at critical interfaces, enabling miniaturization without compromising overall mechanical properties of the component
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 solution provides a multilayer electronic component with improved mechanical and electrical properties, reduced residual carbon, and increased dielectric constant, enabling miniaturization and enhanced reliability while minimizing cracking and blistering.
Implementation Method 1
the acrylic binder may be an acrylic copolymer-graphene binder
Implementation Method 2
an acrylic binder may include an acrylic copolymer-graphene composite
Data Source
AI summary
A multilayer electronic component includes a body having a stacked structure in which a plurality of internal electrodes and dielectric layers are alternately stacked; and external electrodes disposed on an outer surface of the body and connected to the internal electrodes. The dielectric layer includes a plurality of grains and a plurality of graphene particles, and the plurality of graphene particles are disposed at boundaries of the plurality of grains.