Laminated Resonator Conductor Layout for Higher Q in Compact Components
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Solution Overview
Problem
In electronic components with laminated insulating layers and resonators, increasing the cross-sectional area of conductors to lower resistance values while maintaining the element body size is challenging, as it reduces the space for magnetic flux generation, thereby decreasing the Q value.
Innovation Solution
The conductors are designed with a first length longer than a second length in one direction when viewed from the stacking direction, allowing for increased cross-sectional area without expanding the element body size, and optionally featuring recesses for improved bonding strength, enabling enhanced Q value and space efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cross-sectional area of the conductor is increased to lower the resistance value, then the Q value is improved, but the space formed by the two conductors and the connection conductor is narrowed, making it difficult to form a magnetic field around the conductor
Solution Approach 1:
The conductor is designed with an asymmetric cross-sectional shape where one dimension (first length) is longer than the other dimension (second length). This asymmetric configuration allows the conductor to have a larger cross-sectional area for lower resistance while maintaining sufficient space in the orthogonal direction for magnetic flux generation, thereby resolving the contradiction between lowering resistance and preserving magnetic field formation space.
2Reliability
If the cross-sectional area of the conductor is increased while maintaining the element body size, then the resistance value is lowered, but the space formed by the two conductors and the connection conductor is narrowed
Solution Approach 1:
The asymmetric conductor design with different lengths in orthogonal directions enables optimized space arrangement within the element body. The longer dimension provides sufficient cross-sectional area for low resistance, while the orthogonal direction maintains adequate spacing for proper conductor arrangement and magnetic flux generation, thus resolving the space arrangement complexity.
3Reliability
If the element body size is increased to secure the space formed by the two conductors and the connection conductor, then the Q value is improved, but the size of the element body increases
Solution Approach 1:
The asymmetric conductor configuration allows the element body to maintain a compact size while providing sufficient space for magnetic flux generation. The optimized asymmetric shape enables better space utilization within the element body, achieving high Q value without increasing the overall element body dimensions.
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
This configuration effectively increases the Q value by securing the magnetic flux region and apparent volume of the inductor while suppressing the increase in element body size, and allows for more resonators in a limited space.
Implementation Method 1
a region where a magnetic flux is generated around the conductor becomes small, it is difficult to form a magnetic field around the conductor
Data Source
AI summary
An electronic component includes an element body formed by laminating a plurality of insulating layers, and a resonator disposed in the element body. The resonator includes a first conductor and a second conductor extending in a stacking direction of the plurality of insulating layers, and inductor conductors electrically connecting the first conductor and the second conductor. In at least one conductor of the first conductor and the second conductor, when the conductor is viewed from the stacking direction, a first length in one direction is longer than a second length in the other direction orthogonal to the one direction, and as viewed from the stacking direction, a direction in which the first conductor and the second conductor are arranged is orthogonal to the one direction.