Page Buffer Circuit Stage Configuration for Memory Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In memory devices, the existing configurations of page buffer circuits and cache circuits often result in increased area and complexity due to the equal number of stages matching the number of data input/output pins, leading to inefficiencies in integration and data line wiring.
Innovation Solution
The proposed solution involves configuring the page buffer circuit with fewer stages than the cache circuit, allowing for reduced area usage in the page buffer circuit while maintaining the same number of stages in the cache circuit, thereby increasing the degree of integration and simplifying data line wiring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the page buffer circuit is configured with the same number of stages as the number of data input/output pins, then the data input/output capability is sufficient, but the area occupied by the page buffer circuit increases and the device complexity increases
Solution Approach 1:
The page buffer circuit is divided into multiple groups, with each group containing a specific number of stages. This segmentation allows the circuit to handle data input/output operations efficiently while reducing the total area by optimizing the stage distribution across groups rather than using a uniform large-scale configuration.
Solution Approach 2:
The invention changes the parameter of stage configuration from a uniform one-stage-per-pin approach to a multi-group structure where each group has optimized stage counts. This parameter change enables the circuit to maintain full data input/output capability while significantly reducing the overall area occupation through more efficient resource utilization.
2Adaptability or versatility
If the page buffer circuit is configured with the same number of stages as the number of data input/output pins, then the data input/output capability is sufficient, but the device complexity increases
Solution Approach 1:
By segmenting the page buffer circuit into multiple groups with optimized stage distributions, the invention reduces device complexity while maintaining data input/output capability. Each group can be independently managed and optimized, simplifying the overall system architecture compared to a monolithic configuration.
Solution Approach 2:
The invention applies parameter changes by transitioning from a uniform stage configuration to a varied multi-group structure. This allows different groups to have different stage counts optimized for their specific functions, reducing overall device complexity while preserving full adaptability for data input/output operations.
3Adaptability or versatility
If the page buffer circuit occupies larger area, then the data input/output pins can be adequately supported, but the integration density decreases
Solution Approach 1:
The invention optimizes the stage configuration parameters across multiple groups to reduce the total area occupied by the page buffer circuit. This parameter optimization enables adequate support for data input/output pins while increasing integration density by minimizing the space required for the buffer circuit.
Solution Approach 2:
The invention reorganizes the page buffer circuit into a multi-dimensional group structure, allowing more efficient spatial utilization. This dimensional reorganization reduces the area footprint while maintaining the necessary data input/output pin support capabilities, thereby improving integration density.
Data Source
AI summary
A memory device includes a plurality of bit lines; a page buffer circuit including a plurality of page buffers which are electrically coupled to the plurality of bit lines; and a cache circuit including a plurality of caches which are electrically coupled to the plurality of page buffers, wherein a number of stages of the page buffer circuit is less than a number of stages of the cache circuit.