Periodic Signal Reset Circuit for Soft-Error Data Recovery
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Solution Overview
Problem
Miniaturized semiconductor integrated circuits are prone to data loss due to noise and soft errors, which can disable circuits and prevent data transition, requiring a restart to recover data.
Innovation Solution
A semiconductor integrated circuit apparatus with a periodic signal generation circuit and a reset circuit that initializes the first stage logic circuit based on outputs from subsequent logic circuits, allowing data to be restored without restarting the power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the manufacturing process is miniaturized to reduce power consumption, then power consumption is reduced, but data loss due to noise and soft errors increases
Solution Approach 1:
The reset circuit is configured to detect data loss conditions in advance and initiate recovery before the system fails completely. By monitoring the state of logic circuits and automatically triggering a reset operation when data loss is detected, the system performs preliminary corrective action rather than waiting for complete system failure.
Solution Approach 2:
The reset circuit continuously monitors the output states of logic circuits and uses this feedback information to detect when data loss has occurred. When the monitoring detects an abnormal state indicating data loss, the feedback mechanism triggers the reset operation to restore normal operation, creating a closed-loop error correction system.
2Reliability
If noise or soft error reduces signal amplitude, then signal transmission is affected, but data loss occurs requiring power restart
Solution Approach 1:
The system performs self-diagnosis and self-recovery through the reset circuit that automatically detects data loss conditions and initiates reset operations without external intervention. The circuit monitors its own state and autonomously corrects errors by resetting affected logic circuits, enabling the system to service itself and recover from noise-induced or soft-error-induced data loss.
Solution Approach 2:
The reset circuit detects data loss conditions in advance of complete system failure and initiates recovery operations proactively. By monitoring logic circuit states continuously and triggering reset operations as soon as data loss is detected, the system performs preliminary corrective action that prevents extended downtime and avoids the need for manual power cycling.
3Productivity
If data is lost in a logic circuit due to noise or soft error, then data transition is disabled, but continuous operation is interrupted
Solution Approach 1:
The reset circuit uses feedback from monitoring logic circuit outputs to detect data loss conditions. When the feedback indicates an abnormal state consistent with data loss, the reset circuit triggers a reset operation that restores data integrity while minimizing interruption to continuous operation.
Solution Approach 2:
The system detects data loss conditions in advance and initiates reset operations before they completely disrupt continuous operation. By performing preliminary detection and correction, the system maintains productivity and minimizes operational interruptions.
Data Source
AI summary
A semiconductor integrated circuit apparatus includes a periodic signal generation circuit connected with N logical circuits, wherein the N is a natural number, outputting a periodic signal. The periodic signal generation circuit includes a reset circuit outputting a reset signal initializing according to outputs from a first stage logic circuit to N−1th logic circuit.