Multilayer Filter Electrode Segmentation for Resistance Control
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Solution Overview
Problem
Existing multilayer filters face difficulties in accurately controlling the resistance of the resistance component, particularly in setting it to a large value, due to the challenges in adjusting the compounding ratio of dielectric powder in resistive pastes.
Innovation Solution
The multilayer filter design includes a capacitor element body with laminated insulator layers and internal electrodes, where signal internal electrodes are connected through connection conductors on the exterior, allowing for precise adjustment of resistance by varying the number and location of signal internal electrodes connected to terminal electrodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the compounding ratio of dielectric powder in resistive paste is adjusted to control resistance, then the resistance value can be modified, but it becomes extremely difficult to accurately control the resistance and set it to a large value
Solution Approach 1:
The patent segments the resistance control function from the dielectric powder compounding ratio adjustment. Instead of relying solely on material composition changes, it divides the resistance control into multiple independent factors: dielectric powder ratio, signal internal electrode configuration, and connection conductor arrangement. This segmentation allows precise control of resistance without being constrained by material formulation limitations.
Solution Approach 2:
The patent transitions from one-dimensional resistance control (only through dielectric powder ratio) to multi-dimensional control by adding spatial configuration dimensions. The number of signal internal electrodes connected to terminal electrodes, their positions, and connection conductor arrangements provide additional degrees of freedom for resistance adjustment, enabling large resistance values while maintaining manufacturing precision.
2Quantity of substance
If all signal internal electrodes are connected to signal terminal electrodes to increase capacitance, then the capacitance value increases, but the combined resistance decreases
Solution Approach 1:
The patent applies local quality by making different signal internal electrodes have different connection characteristics. Some signal internal electrodes are connected to signal terminal electrodes (contributing to capacitance), while others are not directly connected (contributing to resistance). This localized differentiation allows the system to simultaneously achieve high capacitance and high resistance values.
Solution Approach 2:
The patent introduces dynamic configurability in the electrode connections. The number and positions of signal internal electrodes connected to terminal electrodes can be adjusted based on desired performance characteristics. This dynamic approach allows optimization of the capacitance-resistance trade-off for different application requirements.
3Quantity of substance
If the lamination number of insulator layers and internal electrodes is increased to set larger capacitance, then the capacitance increases, but the combined resistance becomes smaller
Solution Approach 1:
The patent segments the electrode system into multiple independent signal internal electrodes that can be selectively connected. This segmentation allows the resistance contribution from each electrode layer to be independently controlled, preventing the automatic parallel combination that would occur with traditional stacked configurations. Consequently, large capacitance from multiple layers does not necessarily lead to small resistance.
Solution Approach 2:
The patent adds a connection configuration dimension to the traditional lamination structure. Instead of resistance being determined solely by the number of layers (one-dimensional), the resistance is now controlled by the two-dimensional configuration of which electrodes are connected and how they are arranged in space. This allows independent optimization of capacitance and resistance.
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 enables accurate control of the resistance component, allowing for increased capacitance and resistance values, particularly enabling the setting of large resistance values while maintaining high capacitance.
Implementation Method 1
a capacitor element body having a plurality of laminated insulator layers, a first signal internal electrode and a grounding internal electrode arranged so as to be opposed to each other with at least one insulator layer out of the plurality of insulator layers in between, and a second signal internal electrode arranged so as to be opposed to either one internal electrode of the first signal internal electrode and the grounding internal electrode with at least one insulator layer out of the plurality of insulator layers in between
Implementation Method 2
the signal internal electrodes include the second signal internal electrode connected to the signal terminal electrodes, and the first signal internal electrode connected indirectly to the signal terminal electrodes through the connection conductor
Data Source
AI summary
A multilayer filter has a capacitor element body, at least two signal terminal electrodes, at least one grounding terminal electrode, and at least one connection conductor. The capacitor element body has a plurality of laminated insulator layers, a first signal internal electrode and a grounding internal electrode arranged so as to be opposed to each other with at least one insulator layer out of the plurality of insulator layers in between, and a second signal internal electrode arranged so as to be opposed to either one internal electrode of the first signal internal electrode and the grounding internal electrode with at least one insulator layer out of the plurality of insulator layers in between. The first signal internal electrode is connected to the at least one connection conductor. The second signal internal electrode is connected to the at least two signal terminal electrodes and to the at least one connection conductor. The grounding internal electrode is connected to the at least one grounding terminal electrode.