Inductor Array Layout for Thin Profiles and Magnetic Balance
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Solution Overview
Problem
Existing inductor array components primarily focus on size reduction in the planar direction without considering thickness reduction, which is essential as mounting methods diversify, and do not adequately account for the region between wiring lines, leading to inefficiencies in magnetic characteristics and increased thickness.
Innovation Solution
The inductor array component is designed with specific thickness and width configurations for its regions, ensuring that the region with greater magnetoresistance is not thicker than necessary, allowing for effective thickness reduction while maintaining magnetic characteristics, and includes insulators to enhance insulation and inductance efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the thickness of the element body is reduced to achieve size reduction, then the component can be mounted in diverse ways and embedded in substrates, but the magnetic characteristics may deteriorate and the region between wiring lines is not adequately considered
Solution Approach 1:
The element body is divided into first and second regions with different thicknesses on opposite sides of the wiring lines. The thinner first region provides magnetoresistance greater than or equal to that of the third region between wiring lines, while the second region has greater thickness. This local differentiation allows overall thickness reduction while maintaining necessary magnetic characteristics in critical areas.
2Reliability
If the width of the region between individual inductor wiring lines is maintained for proper magnetic flux compensation, then variations in inductance are reduced, but the overall component size increases
Solution Approach 1:
Instead of compensating for magnetic flux resistance solely by adjusting the width of the third region between wiring lines, the invention introduces thickness variation as an additional degree of freedom. By making the first region thinner than the second region while maintaining appropriate magnetoresistance, the design achieves inductance compensation through the thickness dimension, thereby reducing the required planar width.
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 significant thickness reduction while ensuring magnetic saturation and improved insulation, allowing for the component to be embedded in substrates with maintained magnetic performance and increased inductance efficiency.
Implementation Method 1
The greater one out of a magnetoresistance of the first region and a magnetoresistance of the second region is greater than or equal to a magnetoresistance of the third region
Implementation Method 2
enables significant thickness reduction while ensuring magnetic saturation
Data Source
AI summary
An inductor array component including an element body and a first straight wiring line and a second straight wiring line that are arranged on the same plane inside the element body. The element body includes a first region that is located on a first side of the first straight wiring line or the second straight wiring line in a normal direction that is normal to the plane, a second region that is located on a second side of the first straight wiring line or the second straight wiring line in the normal direction that is normal to the plane, and a third region that is located between the first straight wiring line and the second straight wiring line. The greater one out of the magnetoresistance of the first region and the magnetoresistance of the second region is greater than or equal to the magnetoresistance of the third region.