Memory Startup Validation for Usage-Based Disturbance Data
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Solution Overview
Problem
Existing memory devices face challenges in mitigating usage-based disturbance during startup procedures due to uninitialized usage-based-disturbance data, leading to unnecessary resource diversion and prolonged startup times, especially as chip densities increase.
Innovation Solution
Implementing a validation circuit that validates uninitialized usage-based-disturbance data in real-time during the startup procedure, allowing for immediate mitigation without requiring a dedicated initialization process, thus conserving resources and reducing startup time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dedicated initialization process is implemented to validate usage-based-disturbance data, then data reliability is improved, but startup time increases
Solution Approach 1:
The patent applies preliminary action by initializing usage-based-disturbance data to default values before the startup procedure begins. This ensures that validation circuits have valid data to work with immediately, eliminating the need for a dedicated initialization process during startup and thus reducing startup time while maintaining data reliability
Solution Approach 2:
The system applies self-service by having the validation circuit automatically detect and handle invalid usage-based-disturbance data during startup without requiring external intervention or a separate initialization routine. The circuit validates data on-the-fly and performs mitigation operations independently, conserving resources and reducing startup time
2Reliability
If usage-based-disturbance mitigation operations are performed during startup with uninitialized data, then disturbance mitigation is improved, but resource consumption increases
Solution Approach 1:
The validation circuit applies feedback by continuously monitoring the validity of usage-based-disturbance data and dynamically controlling whether mitigation operations should be performed. During startup, when data is uninitialized, the feedback mechanism detects invalidity and prevents unnecessary mitigation operations, thereby reducing resource consumption while maintaining effective disturbance mitigation when data is valid
Solution Approach 2:
The system applies partial action by performing disturbance mitigation operations selectively rather than continuously during startup. The validation circuit determines the extent of mitigation needed based on data validity, performing only necessary operations and avoiding excessive resource consumption from unnecessary mitigation activities
Data Source
AI summary
Apparatuses and techniques for validating uninitialized usage-based-disturbance data are described. In an example aspect, a memory device stores usage-based-disturbance data within a subset of memory cells of multiple rows of a memory array. Instead of initializing the usage-based-disturbance data using a dedicated initialization procedure or instead of temporarily disabling usage-based disturbance mitigation until the data is initialized, the described techniques validate uninitialized usage-based-disturbance data such that the effects of usage-based disturbance can be mitigated during a startup procedure. Usage-based-disturbance data that fails to be validated is initialized. Usage-based-disturbance data that is validated can be acted upon by performing a mitigation procedure. In this sense, initialization is performed in real time while usage-based-disturbance mitigation techniques may be employed.