Laminated Composite Electronic Device Coil Capacitor Overlap
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge is to enhance the performance of laminated composite electronic devices, specifically the coil characteristics, while reducing their size and height, as smaller dimensions lead to decreased Q-value and inductance, and the conventional side-by-side arrangement of coils and capacitors can obstruct coil flux, degrading performance.
Innovation Solution
The solution involves arranging capacitor electrodes to overlap the coil conductors within the laminate structure, allowing the coil conductor to serve as part of the capacitor, thereby increasing coil diameter and line width, preventing flux obstruction, and optimizing the layout to improve inductance and Q-value.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the coil and capacitor are arranged side by side in the horizontal direction, then the layout is simple, but the coil diameter is reduced and the capacitor obstructs the coil flux, degrading the coil characteristics
Solution Approach 1:
The patent transitions from a horizontal side-by-side arrangement to a vertical stacked arrangement where the capacitor is positioned above the coil in the laminating direction. This dimensional change allows the capacitor to overlap the coil conductor without obstructing the horizontal flux path, resolving the contradiction between layout simplicity and coil characteristic degradation.
Solution Approach 2:
The capacitor electrode is designed to overlap and partially cover the coil conductor, creating a nested configuration where the capacitor is positioned within the horizontal footprint of the coil. This nesting allows both components to share the same horizontal space without interfering with each other's electromagnetic fields.
2Volume of moving object
If the size and height of the device are reduced, then the device becomes more compact, but the coil diameter decreases resulting in lower Q-value and inductance
Solution Approach 1:
The patent utilizes the vertical dimension (laminating direction) to position the capacitor above the coil, freeing up horizontal space within the coil's footprint. This allows the coil to maintain a larger diameter and wider conductor lines even in a compact device, preserving Q-value and inductance while reducing overall device size.
Solution Approach 2:
The coil conductor serves dual functions: it forms the coil for generating magnetic flux and simultaneously acts as one electrode of the capacitor. This multi-functionality reduces the total component count and allows more efficient space utilization, enabling compact device design without compromising coil performance.
3Reliability
If the coil conductor line width is increased to improve Q-value, then the inductance increases, but the device area required increases
Solution Approach 1:
The patent resolves the area conflict by positioning the capacitor in the vertical dimension above the coil, allowing the coil conductor to have increased line width for improved Q-value without proportionally increasing the horizontal device footprint. The capacitor and coil share the same horizontal area through vertical stacking.
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 enhances the coil's inductance and Q-value, allowing for a more compact design that meets performance requirements without degrading characteristics, enabling smaller and more functional electronic devices.
Implementation Method 1
a coil conductor arranged on a first conductor layer included in the plurality of conductor layers to constitute at least a section of a conductor that forms part of the coil
Implementation Method 2
a pair of capacitor electrodes for forming a capacitor, wherein one of the capacitor electrodes is arranged on a second conductor layer
Data Source
AI summary
A laminated composite electronic device has a circuit including a coil and a capacitor within a laminate having a plurality of conductor layers laminated with an insulating layer interposed between the respective ones of the conductor layers. The device includes a coil conductor arranged on a first conductor layer and forming part of the coil, and a pair of capacitor electrodes for forming the capacitor, one of which is arranged on a second conductor layer such that the one capacitor electrode laps over the coil conductor when viewed from a laminating direction of the laminate, wherein the coil conductor forms part of the coil, and simultaneously serves as the other of the pair of capacitor electrode for forming part of the capacitor.