Flash Memory Preprocessing System for Data Reliability
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Solution Overview
Problem
The increasing demand for flash memory devices with higher integration density, speed, and storage capacity poses challenges due to electrical effects and potential defects arising from the decreasing size of memory elements, which existing technologies have not adequately addressed.
Innovation Solution
A flash memory preprocessing system that includes a flash preprocessor to convert data before storage, adjusting voltage distribution, correcting for bad blocks and wear leveling, and reordering data to prevent programming errors, using a preprocessing table and user input for trust rate and conversion time, to ensure reliable storage in flash memory devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If flash memory elements are reduced in size and placed in greater proximity to increase integration density, then storage capacity is improved, but electrical effects and potential defects are magnified and arise with greater frequency
Solution Approach 1:
The patent applies preliminary action by performing data preprocessing before writing to flash memory. The preprocessor analyzes incoming data patterns and modifies them in advance to avoid problematic patterns that would cause defects in densely packed memory cells. This includes voltage distribution adjustment and pattern reordering to prevent electrical interference and programming failures.
Solution Approach 2:
The patent applies preliminary anti-action by proactively counteracting potential electrical effects and defects before they occur. The preprocessor identifies data patterns that would cause harmful electrical interference in high-density memory and transforms them into safe patterns, thereby preventing programming errors and cell damage before they can affect the memory device.
2Quantity of substance
If flash memory elements are reduced in size to increase integration density, then storage capacity is improved, but electrical effects are magnified
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting voltage distribution parameters based on the data patterns being written. The preprocessor modifies voltage levels and timing parameters for programming operations to account for electrical effects in high-density memory, thereby maintaining reliable programming despite the magnified electrical effects from reduced cell size.
3Reliability
If data is preprocessed to adjust voltage distribution and prevent programming errors, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent introduces an intermediary preprocessing component that sits between the data source and the flash memory device. This preprocessor handles the complexity of pattern analysis, voltage adjustment, and error prevention, thereby isolating the flash memory device from complex preprocessing requirements while improving programming reliability. The preprocessor acts as a mediator that translates raw data into optimized programming patterns.
Data Source
AI summary
A flash memory preprocessing system comprises at least one flash memory device, a memory controller controlling program and read operations of the at least one flash memory device, and a flash preprocessor receiving program data from an external source, generating preprocessed data by converting the received program data, and outputting the preprocessed data to the memory controller. The memory controller controls the at least one flash memory device to perform a program operation on the at least one flash memory device according to the preprocessed data.