Multi-plane Memory Recycling Defective Storage Elements
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Solution Overview
Problem
Multi-plane memory systems often face inefficiencies due to defective planes being completely removed from operation, leading to unused non-defective planes, resulting in reduced memory utilization.
Innovation Solution
A memory recycling component that includes a failure detection circuit, a test circuit, and a recycle circuit to identify and test defective storage elements, enabling the reuse of functional portions within the same memory block while keeping non-functional portions out of operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all planes are removed from operation when one plane has a defect, then system reliability is improved, but memory utilization deteriorates
Solution Approach 1:
The memory block is segmented into multiple planes, allowing independent testing and evaluation of each plane. When a defect is detected in one plane, only that specific plane is marked as defective while other planes remain operational, enabling selective recycling rather than complete block removal.
Solution Approach 2:
The patent applies local quality by treating each plane individually with different operational statuses. Functional planes maintain normal operation while defective planes are isolated and recycled. This localized approach allows healthy portions of the memory block to continue serving while problematic areas are addressed separately.
2Stability of the object's composition
If defective planes are completely removed from operation, then system stability is improved, but productivity deteriorates
Solution Approach 1:
The system performs preliminary testing and identification of defective planes before completely removing them from operation. By proactively detecting and isolating problematic planes while keeping functional ones operational, the system maintains stability through early defect management while preserving productivity through continued use of healthy memory resources.
Solution Approach 2:
The patent implements a recycling mechanism where defective planes are identified, isolated, and then recovered through re-testing. Planes that pass re-testing are returned to service, allowing the system to maintain stability by removing only truly defective components while recovering and reusing planes that may have been temporarily faulty, thus preserving overall productivity.
Data Source
AI summary
Certain apparatuses, systems, methods, and computer program products are used for multi-plane memory management. An apparatus includes a failure detection circuit that detects a failure of a storage element during an operation. An apparatus includes a test circuit that performs a test on a storage element. An apparatus includes a recycle circuit that enables a portion of a storage element for use in operations in response to the portion of the storage element passing a test.