Charged Particle Beam Array for High-Density Data Storage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current data storage methods, such as magnetic and optical disks, face limitations in increasing storage density due to the size of magnetic storage units and light spot size, making it difficult to enhance storage capacity.
Innovation Solution
A data writing and reading method utilizing a charged particle beam array with a target modulation feature to generate recording features on a recording medium, allowing for high storage density by controlling the charged particle beam's spot size below 10 nanometers, and simplifying the system composition without complex optical path control or precision machined lenses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If magnetic storage units or optical light spots are used for data storage, then data can be stored on magnetic disks or optical discs, but the storage capacity is limited by the size of magnetic storage units or light spot size, making it difficult to increase storage density
Solution Approach 1:
The patent changes the fundamental parameter of beam spot size by using charged particle beams instead of optical light spots. The charged particle beam can be focused to a spot size below 10 nanometers, which is significantly smaller than the diffraction-limited spot size of optical systems. This parameter change enables higher storage density while maintaining the ability to store data on disc-shaped recording media.
Solution Approach 2:
The patent replaces the optical system (using lenses and light spots) with a charged particle beam system. This substitution eliminates the need for complex optical path control and precision-machined lenses, while achieving smaller spot sizes and higher storage capacities. The charged particle beam system uses electromagnetic fields instead of optical components to achieve precise focusing and data writing.
2Manufacturing precision
If optical storage systems use complex optical path control and precision machined lenses to achieve small spot sizes, then data can be written with high precision, but the system composition becomes complex, introducing errors and increasing costs
Solution Approach 1:
The patent replaces the complex optical system with a charged particle beam system that uses electromagnetic fields for focusing and control. This substitution eliminates precision-machined lenses and complex optical path control mechanisms, simplifying the system composition while achieving superior spot size control below 10 nanometers. The electromagnetic field-based approach inherently provides better control without mechanical complexity.
Solution Approach 2:
The patent introduces an electromagnetic field as an intermediary to control the charged particle beam, replacing the need for physical optical components. The electromagnetic field acts as a mediator that can precisely focus and steer the beam without requiring mechanical lenses or complex optical paths, thereby reducing system complexity while maintaining high precision.
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 method increases data storage capacity, improves system reliability, reduces errors, and lowers costs by enabling precise data writing and reading with a simple system design.
Implementation Method 1
controlling, based on the to-be-written data, the charged particle beam excitation modulation component to generate a charged particle beam array with a target modulation feature... and then controlling the charged particle beams in the charged particle beam array to act on the recording medium, to generate, in a target area of the recording medium, a target recording feature corresponding to the to-be-written data
Data Source
AI summary
A data writing and reading method is applied to a data storage system. The storage system includes a processor, a charged particle beam excitation modulation component, and a recording medium. The method is performed by the processor. The data writing method includes obtaining to-be-written data; controlling, based on the to-be-written data, the charged particle beam excitation modulation component to generate a charged particle beam array with a target modulation feature; and controlling the charged particle beams in the charged particle beam array to act on the recording medium to generate, in a target area of the recording medium, a target recording feature corresponding to the to-be-written data.