Bent Magnetic Body for Memory Density

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Solution Overview

Problem

Magnetic memory devices face challenges in improving memory density due to difficulties in manufacturing and downscaling, particularly in maintaining stable operation and controlling magnetic domain movement across separate extending regions.

Innovation Solution

A magnetic memory device design featuring a continuous magnetic body with a first extending region, a second extending region, and a connecting region, where the magnetic body is bent at the connecting region to suppress magnetic domain movement between regions, allowing for easier manufacturing and improved memory density.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If separate extending regions are used to control magnetic domain movement, then magnetic domain positioning accuracy is improved, but device complexity and manufacturing difficulty increase

Engineering Contradiction:
Improvemagnetic domain positioning accuracyVSAvoidstructure complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent merges multiple separate extending regions into a single continuous magnetic body with integrated first, second, and third extending regions. This unified structure eliminates the need for separate components while maintaining the ability to control magnetic domain movement through the bent configuration, thereby reducing device complexity while preserving positioning accuracy.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The magnetic body is configured with a bent shape where the first extending region, second extending region, and third extending region are connected at angles rather than forming straight lines. This curvature creates natural magnetic domain confinement zones that improve positioning accuracy without requiring additional separate components, thus resolving the contradiction between precision and complexity.

Inventive Principle:
Principle #14Spheroidality (Curvature)

2Quantity of substance

If downscaling is implemented to improve memory density, then memory capacity increases, but manufacturing stability and operation reliability deteriorate

Engineering Contradiction:
Improvememory densityVSAvoidoperation stability
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The patent transitions from two-dimensional planar structures to three-dimensional bent configurations by introducing vertical angles between extending regions. This dimensional change allows for more compact space utilization, effectively increasing memory density while maintaining stable magnetic domain operation through the geometric constraints provided by the bent structure.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent changes the geometric parameters of the magnetic body by introducing bent configurations with specific angles between extending regions. This parameter modification enables smaller feature sizes and higher density while the bent structure itself provides stable magnetic domain confinement, preventing operation instability that would normally occur during downscaling.

Inventive Principle:
Principle #35Parameter changes

3Quantity of substance

If bent configuration is used to suppress magnetic domain movement, then memory density improves, but manufacturing precision requirements increase

Engineering Contradiction:
Improvememory densityVSAvoidbending angle precision
Core Design Contradiction:
Quantity of substanceVSManufacturing precision

Solution Approach 1:

The magnetic body is segmented into distinct first, second, and third extending regions that are connected at bent portions. This segmentation allows each region to be optimized independently for its specific function while the overall bent configuration provides memory density improvement. The clear regional division makes manufacturing more manageable despite the bent configuration.

Inventive Principle:
Principle #1Segmentation

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 design enhances memory density by maintaining stable operation and controlling magnetic domain movement, facilitating easier manufacturing processes while maintaining high accuracy in domain positioning.

Implementation Method 1

The first extending region includes a first magnetic domain and a first other region provided around the first magnetic domain in a first state

Methodology Applied
Scientific EffectMagnetic domain: Magnetism

Data Source

PatentUS10141067B2Magnetic memory device
Publication Date: 2018.11.27 KIOXIA CORP
  • US10141067B2 patent drawing
  • US10141067B2 patent drawing
  • US10141067B2 patent drawing

AI summary

According to the embodiment, a magnetic memory device includes a magnetic body. The magnetic body includes first and second extending regions, and a first connecting region. The first extending region spreads along a first direction and along a second direction crossing the first direction, and includes first and second end portions extending in the first direction. The second end portion is separated from the first end portion in the second direction. The second extending region spreads along the first direction and along a third direction crossing the first direction, and includes third and fourth end portions extending in the first direction. The fourth end portion is separated from the third end portion in the third direction. The first connecting region is provided between the first and third end portions, and connects the first end portion with the third end portion.