3D Vertical Inductor Structure for Miniaturization and Low Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current inductor designs face limitations in miniaturization and low resistance, failing to meet the demands for smaller size and higher inductance values, particularly in electronic and communication devices.
Innovation Solution
The inductor design incorporates a body made of glass or anodic oxide film material with vertically passing connection portions, upper and lower connection portions, and a magnetic part, featuring passivation layers and a coil part with specific dimensions and arrangements to enhance inductance and reduce resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional winding type, laminated type, or thin film type inductor structures are used, then manufacturing processes are established, but the inductors cannot satisfy miniaturization and low resistance requirements
Solution Approach 1:
The patent transitions from planar coil structures to a three-dimensional vertical structure where the coil part extends in the thickness direction of the substrate. This dimensional change allows for increased inductance and reduced resistance within a smaller footprint area, directly addressing the miniaturization requirement while maintaining performance
Solution Approach 2:
The patent employs composite material structures combining conductive materials for the coil part with magnetic materials for the magnetic part. This composite approach enables optimized electrical and magnetic properties, achieving low resistance and high inductance values in a compact form factor that conventional single-material structures cannot accomplish
2Volume of moving object
If inductor size is reduced for miniaturization, then space is saved, but inductance value increases are limited
Solution Approach 1:
By utilizing the thickness direction (vertical dimension) for coil winding, the patent achieves three-dimensional current paths that increase inductance without expanding the planar footprint. The coil part is configured to extend vertically through multiple layers, effectively using spatial volume rather than just surface area
Solution Approach 2:
The patent implements a nested structure where the coil part is positioned within and around magnetic parts, with conductive patterns embedded in substrate layers. This nested arrangement maximizes the use of available space, allowing the coil to be surrounded by magnetic material that enhances inductance while keeping the overall structure compact
3Reliability
If conventional inductor structures are used, then manufacturing is established, but resistance reduction is limited
Solution Approach 1:
The vertical extension of the coil part in the thickness direction creates longer current paths with more turns, increasing inductance while the three-dimensional routing allows for optimized conductor geometry that reduces resistance. The coil structure utilizes vertical vias and layered patterns to minimize current path length and resistance
Solution Approach 2:
The use of high-conductivity materials for the coil part combined with magnetic materials having optimized permeability properties creates a composite structure that minimizes resistive losses. The conductive patterns are formed using low-resistance materials and configurations, while magnetic parts provide flux confinement without adding significant 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 allows for miniaturization while increasing inductance values, improving thermal stability, and enabling the use of low-resistance conductive materials, addressing the limitations of existing inductor technologies.
Implementation Method 1
An inductor is a passive component that utilizes the action of electromagnetic waves generated by passing a current through a wire wound around a core
Data Source
AI summary
An inductor and a body part for an inductor are proposed. The inductor and the body part satisfy needs for miniaturization and low resistance and increase a value of inductance thereof.