Semiconductor Error Correction Circuit for Reliable High-Speed Write Operations
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Solution Overview
Problem
As semiconductor devices increase data transmission speeds, the probability of errors during data transmission also rises, necessitating advanced error correction mechanisms to maintain reliability.
Innovation Solution
A semiconductor device incorporating an error correction circuit and a write operation control circuit that generate corrected data and write control signals based on error flags, enabling reliable write operations by decoding error information and controlling write operations accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data transmission speed is increased, then productivity is improved, but reliability deteriorates due to higher error probability
Solution Approach 1:
The patent applies preliminary action by generating error correction codes (ECC) and error detection codes (EDC) in advance before data transmission. The encoder circuit pre-processes the data to embed correction capabilities, and the decoder circuit uses these pre-generated codes to detect and correct errors that occur during high-speed transmission, thus maintaining reliability despite increased transmission speed.
2Reliability
If error correction mechanisms are added, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent merges the error correction code (ECC) and error detection code (EDC) functions into a unified decoding architecture. The decoder circuit simultaneously processes both ECC and EDC signals to perform error correction and validation in a single operation, reducing the number of separate circuits needed and simplifying the overall device structure while maintaining high reliability.
Solution Approach 2:
The decoder circuit is designed with multi-functionality to handle both error correction and error detection tasks. By making the decoding circuit universal, it can process different types of codes (ECC and EDC) and perform multiple functions (correction and detection) using the same hardware resources, thereby reducing device complexity.
3Reliability
If comprehensive error correction is performed, then reliability is improved, but power consumption increases
Solution Approach 1:
The patent applies partial action by selectively performing error correction only when necessary. The system first performs error detection using EDC, and only activates the full ECC correction process when errors are detected. This partial approach avoids the continuous power consumption of comprehensive correction mechanisms while maintaining reliability when needed.
Solution Approach 2:
The error correction system uses self-service by automatically detecting and correcting errors without requiring external intervention or complex control logic. The decoder circuit autonomously determines whether correction is needed based on EDC results and executes the appropriate correction algorithm, reducing the overall system power consumption while maintaining high reliability.
Data Source
AI summary
A semiconductor device includes an error correction circuit and a write operation control circuit. The error correction circuit generates corrected data and an error flag from read data according to whether an error is included in the read data outputted when a read operation is performed. The write operation control circuit generates a write control signal for controlling a write operation based on the error flag.