Semiconductor Memory Architecture with Segmented Buffer and 3D Main Regions
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Solution Overview
Problem
Current semiconductor memory devices face challenges in increasing memory capacity and reducing coupling effects, with existing techniques like 3D-IC memory, fine patterning, and multi-level cell methods being costly or inefficient in enhancing bit density.
Innovation Solution
A semiconductor device architecture that includes a peripheral circuit part and a first memory part alongside a second memory part, with the first memory part acting as a buffer and the second as a main memory, utilizing a combination of single-bit and multi-bit data storage, and a programming method that involves buffer-programming data into the first memory and main-programming it into the second using a reprogram method to reduce threshold voltage distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If 3D-IC memory technique is used to increase memory capacity, then memory capacity increases, but manufacturing cost increases
Solution Approach 1:
The memory device is divided into two distinct memory parts: a first memory part with a planar structure and a second memory part with a three-dimensional structure. This segmentation allows each part to be optimized independently, with the first part serving as buffer memory and the second part serving as main memory, thereby achieving high memory capacity without requiring the entire device to use costly 3D-IC manufacturing techniques.
Solution Approach 2:
Different memory structures are applied to different regions of the device. The first memory part uses a simpler planar structure suitable for buffer operations, while the second memory part uses the more complex three-dimensional structure for main storage. This local differentiation optimizes both cost and performance by applying 3D-IC technology only where maximum capacity is needed.
2Quantity of substance
If fine patterning technique is used to increase memory capacity, then memory capacity increases, but manufacturing cost increases
Solution Approach 1:
The memory device is divided into two distinct memory parts: a first memory part with a planar structure and a second memory part with a three-dimensional structure. This segmentation allows each part to be optimized independently, with the first part serving as buffer memory and the second part serving as main memory, thereby achieving high memory capacity without requiring the entire device to use costly 3D-IC manufacturing techniques.
Solution Approach 2:
Different memory structures are applied to different regions of the device. The first memory part uses a simpler planar structure suitable for buffer operations, while the second memory part uses the more complex three-dimensional structure for main storage. This local differentiation optimizes both cost and performance by applying 3D-IC technology only where maximum capacity is needed.
3Quantity of substance
If multi-level cell technique is used to increase bits per cell, then memory capacity increases, but coupling effect between cells increases
Solution Approach 1:
The memory device is divided into two distinct memory parts: a first memory part with a planar structure and a second memory part with a three-dimensional structure. This segmentation allows each part to be optimized independently, with the first part serving as buffer memory and the second part serving as main memory, thereby achieving high memory capacity without requiring the entire device to use costly 3D-IC manufacturing techniques.
Solution Approach 2:
Different memory structures are applied to different regions of the device. The first memory part uses a simpler planar structure suitable for buffer operations, while the second memory part uses the more complex three-dimensional structure for main storage. This local differentiation optimizes both cost and performance by applying 3D-IC technology only where maximum capacity is needed.
4Productivity
If integration degree is increased to improve device performance, then device performance improves, but coupling effect between memory cells increases
Solution Approach 1:
The memory device is divided into two distinct memory parts: a first memory part with a planar structure and a second memory part with a three-dimensional structure. This segmentation allows each part to be optimized independently, with the first part serving as buffer memory and the second part serving as main memory, thereby achieving high memory capacity without requiring the entire device to use costly 3D-IC manufacturing techniques.
Solution Approach 2:
Different memory structures are applied to different regions of the device. The first memory part uses a simpler planar structure suitable for buffer operations, while the second memory part uses the more complex three-dimensional structure for main storage. This local differentiation optimizes both cost and performance by applying 3D-IC technology only where maximum capacity is needed.
Data Source
AI summary
Semiconductor devices are provided. A semiconductor device includes a peripheral circuit region and a first memory region that are side by side on a substrate. Moreover, the semiconductor device includes a second memory region that is on the peripheral circuit region and the first memory region. Related methods of programming semiconductor devices are also provided.