Spin Wave Signal Processing Device Using Dot-Shaped Magnetic Contacts
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Solution Overview
Problem
The miniaturization of CMOS devices leads to increased power consumption, and existing signal processing technologies using spin waves face challenges in reducing power consumption and accommodating multi-input signals due to large transmission line areas and unsuitable structures for Boolean algebra operations.
Innovation Solution
A signal processing device featuring a continuous magnetic film with spin wave generators and a signal detector, where the spin wave generators have a dot-shaped contact surface with the film and the signal detector has a larger contact area, enabling efficient generation and detection of spin waves for multi-input signal processing with reduced power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If transmission line structure is used to generate spin waves, then spin waves can be excited, but electricity consumption increases and large area is required
Solution Approach 1:
The invention divides the continuous transmission line into discrete dot-shaped contact regions. Each dot acts as an independent spin wave generator, allowing selective activation and reducing the total area required compared to a continuous transmission line structure.
Solution Approach 2:
The invention applies different properties to different regions: dot-shaped contact regions for spin wave generation and larger contact regions for signal detection. This local differentiation optimizes both power consumption and detection sensitivity in their respective zones.
2Adaptability or versatility
If conventional transistor structure is used, then Boolean algebra operation is suitable, but multi-input signal processing capability is limited
Solution Approach 1:
The continuous magnetic film serves multiple functions: it acts as both the medium for spin wave propagation and the substrate for multiple dot-shaped contact regions. This allows the same structure to handle multiple input signals simultaneously, providing multi-input signal processing capability without requiring complex separate structures for each input.
3Use of energy by moving object
If spin wave generation is implemented, then low power consumption is achieved, but detection sensitivity needs improvement
Solution Approach 1:
The invention applies different contact region sizes for different functions: small dot-shaped regions for efficient spin wave generation with low power, and larger contact regions for enhanced signal detection sensitivity. This local differentiation resolves the contradiction between low power consumption and high detection sensitivity.
Solution Approach 2:
The continuous magnetic film acts as an intermediary that couples the dot-shaped spin wave generators to the larger detection contacts. It transmits the spin waves generated by the small dots to the larger detection regions, enabling both low-power generation and high-sensitivity detection.
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 low-power signal processing with improved controllability and multi-input capabilities, reducing power consumption and enhancing detection sensitivity while maintaining efficient signal processing.
Implementation Method 1
each has a contact surface with the continuous film in a dot shape and generates a spin wave in a region of the magnetic layer of the continuous film by receiving an input signal
Implementation Method 2
The signal detector is provided on the continuous film and detects, as an electrical signal, the spin waves generated by the spin wave generators and propagating through the continuous film
Data Source
AI summary
A signal processing device includes a continuous film, a plurality of spin wave generators, and at least one signal detector. The continuous film includes at least one magnetic layer. The plurality of spin wave generators are provided on the continuous film in such a manner as to be in direct contact with the continuous film or be in contact with the continuous film while having an insulation layer interposed therebetween, and each has a contact surface with the continuous film in a dot shape and generates a spin wave in a region of the magnetic layer of the continuous film by receiving an input signal, the region being immediately under the contact surface. The signal detector is provided on the continuous film and detects, as an electrical signal, the spin waves generated by the spin wave generators and propagating through the continuous film.