Feedthrough Multilayer Capacitor Array Crosstalk Reduction
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Solution Overview
Problem
Feedthrough multilayer capacitor arrays experience crosstalk due to ground electrodes being connected to a single terminal electrode, leading to inadequate noise absorption.
Innovation Solution
A feedthrough multilayer capacitor array design where first and second internal electrodes in the first electrode layer are connected to different terminal electrodes through lead conductors, and third and fourth internal electrodes in the second electrode layer are similarly connected, allowing for independent grounding of capacitors without shared ground electrodes, reducing crosstalk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If multiple ground electrodes are connected to a single terminal electrode, then the device complexity is reduced, but crosstalk occurs between capacitors and noise absorption capability deteriorates
Solution Approach 1:
The invention divides the ground connection system into multiple independent terminal electrodes (first terminal electrode and second terminal electrode) instead of using a single shared terminal electrode. Each ground electrode can be independently connected to different terminal electrodes, segmenting the ground path to prevent noise coupling and crosstalk between adjacent capacitors.
2Reliability
If terminal electrodes are formed on four side faces, then crosstalk suppression is improved through independent grounding, but fabrication complexity increases
Solution Approach 1:
The invention merges multiple terminal electrodes onto a single side face of the multilayer body instead of distributing them across four side faces. This consolidation reduces the number of faces requiring electrode formation, simplifying the fabrication process while still providing multiple independent ground connection points for crosstalk suppression.
3Ease of manufacture
If multiple internal electrodes are connected to the same terminal electrode, then manufacturing is simplified, but noise absorption capability is reduced due to shared ground path
Solution Approach 1:
The invention segments the ground connection paths by connecting different internal electrodes to different terminal electrodes (first terminal electrode and second terminal electrode). This creates separate ground return paths for adjacent capacitors, preventing noise coupling through the ground path and improving overall noise absorption capability.
Data Source
AI summary
A feedthrough multilayer capacitor array has a multilayer body in which a plurality of first and second electrode layers are alternately laminated with a dielectric layer in between; first, third, fifth, and seventh terminal electrodes formed on a first side face of the multilayer body; and second, fourth, sixth, and eighth terminal electrodes formed on a second side face of the multilayer body facing the first side face. Each first electrode layer includes first and second internal electrodes which are electrically connected through lead conductors respectively to the first and second terminal electrodes, and the third and fourth terminal electrodes. Each second electrode layer includes third and fourth internal electrodes which are electrically connected through lead conductors respectively to the fifth and sixth terminal electrodes, and the seventh and eighth terminal electrodes.