ReRAM Memory Component with Pointed Edges for Voltage Reduction
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Solution Overview
Problem
Current resistive non-volatile random-access memory (ReRAM) technologies require high operating voltages for programming, which can be inefficient and energy-intensive, and there is a need for improved integration with transistors to share operating voltage effectively.
Innovation Solution
The integration of a resistive non-volatile memory structure with a transistor, where a memory component with sharp edges is formed on a substrate, allowing the operating voltage applied to the transistor to be shared and reducing the required programming voltage by enhancing the local electric field, using techniques such as faceted etching to create pointed edges on the memory component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional ReRAM structures are used, then the memory can store data non-volatily, but high operating voltages are required for programming which makes the device energy-intensive
Solution Approach 1:
The patent applies local quality by creating pointed edges at specific locations on the memory component surface. These localized geometric features concentrate the electric field precisely where needed, enabling voltage reduction overall while maintaining sufficient field strength for reliable programming at the critical interface regions.
Solution Approach 2:
The patent changes the geometric parameter of the memory component surface from flat to pointed edges. This parameter change fundamentally alters the electric field distribution, converting a uniform field into a concentrated field at the pointed edges, which reduces the overall voltage requirement while maintaining programming effectiveness.
2Reliability
If higher operating voltages are applied to ReRAM, then programming can be achieved, but the process becomes inefficient and energy-intensive
Solution Approach 1:
By creating localized pointed edges on the memory component, the patent achieves efficient programming through concentrated electric fields at these specific locations. This local field enhancement means that lower overall voltages can achieve the same programming effect, improving efficiency while maintaining reliability.
Solution Approach 2:
The patent introduces a geometric dimensionality change by creating three-dimensional pointed edges on the component surface. This dimensional modification transforms the two-dimensional flat surface into a structure with localized field concentration points, enabling more efficient voltage utilization for programming.
3Use of energy by moving object
If ReRAM is integrated with transistor to share operating voltage, then voltage can be shared between components, but the integration complexity increases
Solution Approach 1:
The patent merges the transistor and memory component into a single integrated structure where they share common elements such as the substrate and voltage supply. This combining approach enables voltage sharing between the transistor gate and memory component, reducing overall energy consumption while maintaining a relatively simple integrated architecture.
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 approach reduces the operating voltage needed for programming the ReRAM, enhances energy efficiency, and allows for a common process and material usage with the transistor, improving the overall performance and integration of the memory structure.
Implementation Method 1
a first shape comprising one or more pointed edges is formed on a first surface of the memory component... enhancing the local electric field
Data Source
AI summary
Techniques for fabricating a volatile memory structure having a transistor and a memory component is described. The volatile memory structure comprises the memory component formed on a substrate, wherein a first shape comprising one or more pointed edges is formed on a first surface of the memory component. The volatile memory structure further comprises transistor formed on the substrate and electrically coupled to the memory component to share operating voltage, wherein operating voltage applied to the transistor flows to the memory component.