3D Semiconductor Memory Protrusion Integration Density
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Solution Overview
Problem
Current semiconductor devices face challenges in achieving high integration density and efficient data storage while maintaining low power consumption and multi-functionality, particularly in miniaturized electronic devices.
Innovation Solution
The design incorporates a semiconductor memory device with a line-type first electrode layer and protrusions, featuring variable resistance layers and second electrodes, which are strategically positioned to enhance integration and data storage capabilities, using materials such as transition metal oxides and ferromagnetic materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional memory structures are used, then device simplicity is maintained, but integration density and data storage efficiency deteriorate
Solution Approach 1:
The patent transitions from planar 2D memory cell arrangement to a 3D vertical structure by forming protrusions that extend upward from the substrate. Multiple memory elements are stacked vertically around each protrusion, utilizing the third dimension (height) to increase storage capacity without expanding the chip footprint. This dimensional change directly resolves the contradiction by achieving higher integration density through spatial exploitation of vertical space.
Solution Approach 2:
The patent implements a nested configuration where multiple memory elements are arranged concentrically around a central protrusion. The variable resistance layers and electrodes are positioned in nested layers at different heights, with each memory element containing smaller components within its structure. This nesting approach maximizes the use of available space around each protrusion, thereby increasing integration density without proportionally increasing overall device complexity.
2Quantity of substance
If more memory elements are added to increase storage capacity, then data storage efficiency improves, but power consumption increases
Solution Approach 1:
The patent merges multiple memory elements around a single shared protrusion structure, where the protrusion serves as a common reference electrode for all surrounding memory elements. This sharing of common structures reduces the total number of individual components required, thereby decreasing overall power consumption while maintaining high storage capacity. The merged structure allows efficient addressing and control of multiple memory elements through shared control lines.
3Quantity of substance
If memory elements are miniaturized to increase integration density, then integration density improves, but manufacturing precision requirements increase
Solution Approach 1:
The patent segments the memory device into discrete modular units, each consisting of a protrusion with surrounding memory elements. This segmentation allows for standardized fabrication processes where each module can be independently formed and then replicated across the substrate. The modular approach simplifies manufacturing by breaking down the complex 3D structure into manageable fabrication steps, thereby reducing precision requirements compared to continuous miniaturization approaches.
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 improves the integration density and reliability of memory elements, enabling efficient data storage and operation in various electronic devices, including microprocessors, processors, and data storage systems, while supporting low power consumption and multi-functionality.
Implementation Method 1
semiconductor devices which can store data using a characteristic that they are switched between different resistant states according to an applied voltage or current
Data Source
AI summary
An electronic device includes a semiconductor memory. The semiconductor memory includes a line-type first electrode layer having at least one protrusion and extending in a first direction, and a plurality of memory elements, each memory element including a variable resistance layer and a second electrode, the variable resistance layers of the memory elements being disposed over a top surface and two parallel side surfaces of the protrusion, respectively, the two parallel side surfaces of the protrusion being arranged in the first direction, the second electrodes of the memory elements being disposed over the variable resistance layers of the memory elements, respectively.