Storage Device Voltage Verification for Reliable Data Operations
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Solution Overview
Problem
Storage devices face challenges in ensuring that operations are performed within valid voltage ranges, leading to potential inaccuracies or failures during read, program, and erase operations, as existing technologies do not effectively verify or adjust voltages in real-time.
Innovation Solution
A storage device with a memory device that includes a voltage information generator and status register to provide information on whether the operation voltage is within a preset range, allowing the memory controller to adjust voltages and prevent operations with invalid voltages, thereby ensuring accurate data retrieval and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If voltage range verification is not implemented, then device complexity is reduced, but operation reliability deteriorates due to potential invalid voltage operations
Solution Approach 1:
The voltage information generator performs preliminary verification of whether the operation voltage is within the valid voltage range before the memory operation is executed. This advance checking prevents invalid operations from occurring, thereby improving reliability without requiring complex real-time intervention mechanisms during operation.
Solution Approach 2:
The system generates voltage information indicating whether the voltage is valid and provides this feedback to control subsequent operations. This feedback mechanism enables the system to adjust or prevent operations based on voltage validity, ensuring reliable operation while maintaining manageable device complexity through intelligent control.
2Manufacturing precision
If real-time voltage verification is implemented, then manufacturing precision is improved, but productivity decreases due to additional verification steps
Solution Approach 1:
Voltage verification is performed in advance before memory operations, ensuring that only valid voltage conditions proceed to execution. This preliminary check guarantees operation precision without requiring continuous verification during operations, thereby minimizing impact on operation speed and productivity.
3Measurement precision
If voltage information tracking is added, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The memory device generates and tracks its own voltage information using internal circuitry (voltage information generator) without requiring external measurement equipment. This self-service approach enables precise voltage monitoring while avoiding the added complexity of external measurement systems, as the verification functionality is integrated into the existing device architecture.
Data Source
AI summary
The present technology relates to an electronic device. According to the present technology, a storage device includes a memory device configured to include memory cells for storing data and circuitry structured to generate voltage information indicating whether a voltage used for performing an operation on the memory cells is included in a preset voltage range; and a memory controller in communication with the memory device and configured to transmit, to the memory device, a status command requesting for a status response indicating a status of the operation, and control the memory device to change a voltage used for performing the operation based on the status response provided from the memory device and including the voltage information.