Magnetic Thin-Film Multiplexer with Asymmetric Vortex Routing
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Solution Overview
Problem
Current signal transferring technologies face challenges in achieving low energy consumption and easy controllability for data processing, particularly in communication devices, memory devices, and logic devices, where magnetic vortex or skyrmion structures show promise but require improved control mechanisms for efficient signal transfer and multiplexing/demultiplexing.
Innovation Solution
A signal transferring device and multiplexer using magnetic thin film structures with symmetrical and asymmetrical shapes, where the asymmetrical structure has a flat edge, allowing for controlled signal transfer by manipulating the vortex core's position and magnetic bias field to manage resonant frequencies and gyrotropic motion, enabling selective and reliable signal transfer and multiplexing/demultiplexing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If magnetic vortex or skyrmion structures are used for signal transfer, then energy consumption is reduced and operation speed is improved, but controllability and reliability of signal transfer are insufficient
Solution Approach 1:
The patent introduces an asymmetrical magnetic thin film structure with a flat edge to break the rotational symmetry of conventional circular vortex structures. This asymmetry creates a preferred direction for vortex core motion and enables directional signal transfer. The asymmetrical structure interacts with applied magnetic fields to control gyrotropic motion, thereby improving signal transfer reliability while maintaining low energy consumption characteristics of magnetic vortex structures.
Solution Approach 2:
The patent utilizes changes in magnetic field parameters (strength, direction, frequency) to control the state and motion of magnetic vortices. By applying external magnetic fields with specific parameters, the vortex core position and gyrotropic motion can be precisely controlled, enabling reliable signal transfer. The resonant frequency matching between adjacent magnetic thin film structures is also controlled through parameter adjustment to ensure efficient signal coupling.
2Speed
If magnetic thin film structures are arranged adjacently for signal transfer, then signal transfer speed is improved, but signal interference and cross-talk increase
Solution Approach 1:
The patent introduces magnetic field lines as an intermediary mechanism for signal transfer between adjacent magnetic thin film structures. Instead of direct physical contact or overlapping, signals are transferred through controlled magnetic field coupling. The asymmetrical structure with flat edge creates directional magnetic field distribution that confines the intermediary field interaction, reducing cross-talk while maintaining fast signal transfer through magnetic field mediation.
3Ease of manufacture
If conventional symmetrical magnetic structures are used, then manufacturing is simplified, but signal transfer control and selectivity are limited
Solution Approach 1:
The patent modifies the conventional circular symmetrical magnetic thin film structure by introducing a flat edge, creating an asymmetrical geometry. This asymmetry is manufactured using standard lithography and thin film deposition techniques, maintaining ease of fabrication. The asymmetrical shape provides directional anisotropy that enables controlled signal transfer and selective routing, overcoming the limitations of symmetrical structures while remaining compatible with existing manufacturing processes.
4Productivity
If multiple magnetic thin film structures are coupled for multiplexing, then data transmission capacity is improved, but device complexity increases
Solution Approach 1:
The patent divides the signal transfer function into multiple independent magnetic thin film structure units, each capable of handling specific signal paths. By segmenting the multiplexing function across multiple simple asymmetrical magnetic structures rather than using one complex structure, the system achieves high data transmission capacity through parallel processing while keeping individual components simple and manufacturable.
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
The solution achieves low energy consumption and efficient signal transfer with high controllability, allowing for selective signal routing and multiplexing/demultiplexing, enhancing the performance of communication, memory, and logic devices by leveraging the unique properties of magnetic thin film structures.
Implementation Method 1
When a signal is injected into the magnetic vortex, gyrotropic motion of the vortex core may be excited in a unique mode. When a plurality of magnetic thin film structures having the above-described vortex or skyrmion structure are arranged adjacent to each other, a coupled mode or coupled gyration mode thereof is present.
Implementation Method 2
A magnetic vortex has a clockwise (CW) or counterclockwise (CCW) curling magnetization around a vortex core perpendicular to a disk plane.
Implementation Method 3
allowing for controlled signal transfer by manipulating the vortex core's position and magnetic bias field to manage resonant frequencies and gyrotropic motion
Data Source
AI summary
A signal transferring device includes a first structure that includes a first magnetic thin film structure having a first magnetic vortex configured to receive a signal as an input signal, a second structure that is spaced apart from at least one side of the first structure, the second structure including a second magnetic thin film structure having a second magnetic vortex configured to transfer the signal, and a third structure that is spaced apart from at least one side of the second structure, the third structure including a third magnetic thin film structure having a third magnetic vortex configured to output the signal from the signal transferring device. The first and third structures have a symmetrical shape and the second structure has an asymmetrical shape.