Multilayer Electronic Component With Graded Ni-Oxide Electrodes
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Solution Overview
Problem
The miniaturization and high integration of multilayer electronic components, particularly multilayer ceramic capacitors, lead to deteriorated reliability and mechanical strength due to thinning of dielectric layers and internal electrodes.
Innovation Solution
The distribution of Ni-containing oxide in the internal electrodes is controlled to satisfy a specific ratio, ensuring uniform distribution and improved bonding strength between electrodes and dielectric layers, thereby enhancing mechanical strength and withstand voltage characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the multilayer electronic component is miniaturized and made more capacitive by thinning dielectric layers or internal electrodes, then the capacitance and integration density are improved, but the reliability and mechanical strength deteriorate
Solution Approach 1:
The patent applies local quality by creating different Ni-containing oxide concentrations in different regions of the internal electrode. The center portion has a first concentration while the side portion has a second concentration, allowing each region to perform its specific function: the center provides capacitance while the sides provide mechanical strength and reliability
Solution Approach 2:
The patent changes the chemical composition parameter by introducing Ni-containing oxide with controlled concentrations in different regions. This parameter change transforms the internal electrode structure to simultaneously achieve high capacitance and maintained reliability, resolving the contradiction between miniaturization and reliability
2Volume of moving object
If the dielectric layer thickness is reduced to achieve miniaturization, then the component size is reduced, but the mechanical strength and reliability deteriorate
Solution Approach 1:
The patent uses composite materials by combining Ni-containing oxide with the internal electrode material. This composite structure provides both the electrical functionality needed for miniaturization and the mechanical strength required to maintain reliability, allowing thin dielectric layers to be used without sacrificing structural integrity
3Productivity
If the internal electrode thickness is reduced to increase capacitance density, then the capacitance per volume is improved, but the bonding strength between electrodes and dielectric layers deteriorates
Solution Approach 1:
The patent applies local quality by creating different Ni-containing oxide concentrations in different regions of the internal electrode. The center portion has a first concentration while the side portion has a second concentration, allowing each region to perform its specific function: the center provides capacitance while the sides provide mechanical strength and reliability
Solution Approach 2:
The Ni-containing oxide acts as an intermediary substance between the internal electrode and dielectric layer. By controlling its concentration distribution, it facilitates strong bonding while allowing the internal electrode to remain thin for high capacitance density
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 controlled distribution of Ni-containing oxide improves the reliability, mechanical strength, and electrostatic capacitance of multilayer electronic components, even when the components are miniaturized and have high capacitance.
Implementation Method 1
the internal electrode may include an Ni-containing oxide and Ni
Data Source
AI summary
The present disclosure is a multiplayer electronic component including an internal electrode comprising Ni and an Ni-containing oxide, and the distribution of the Ni-containing oxide is adjusted, thereby improving mechanical strength and withstand voltage characteristics of a multilayer electronic component.