Flip-on-precharge disable for memory cell error correction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing memory management systems face challenges in accurately performing error correction operations due to the flipping of data patterns during precharge operations, which complicates the detection of 'stuck-at' memory cells and reduces the accuracy of error correction processes.
Innovation Solution
Disabling the flip on precharge (FOP) operation during error correction processes allows for simplified and more accurate error correction by maintaining the original data state, thereby enhancing the reliability of memory cell management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If flip on precharge (FOP) operation is enabled during error correction, then data pattern flipping counteracts imprint effects and improves memory cell reliability, but detection accuracy of stuck-at memory cells deteriorates and error correction precision is reduced
Solution Approach 1:
The system dynamically adjusts the FOP operation status based on the type of operation being performed. During normal memory operations, FOP is enabled to counteract imprint effects and improve reliability. During error correction operations, FOP is disabled to maintain data pattern stability and ensure accurate detection of stuck-at cells. This dynamic switching resolves the contradiction by adapting the system behavior to the specific operational context.
Solution Approach 2:
The patent applies different operational characteristics to different operational contexts. Specifically, the FOP operation is selectively enabled or disabled based on whether the current operation is a normal memory access or an error correction operation. This local differentiation allows the system to optimize for reliability during normal operations while optimizing for measurement precision during error correction, thereby resolving the technical contradiction.
2Reliability
If flip on precharge (FOP) operation is performed during precharge, then imprint effects are counteracted and memory reliability is improved, but operational complexity increases
Solution Approach 1:
The system implements dynamic control of the FOP operation through a control mechanism that adjusts the operation status based on the current operational phase. During normal memory operations, FOP is activated to improve reliability. During error correction operations, FOP is deactivated to simplify the operational process and avoid unnecessary complexity. This dynamic approach allows the system to maintain high reliability while minimizing operational complexity only when necessary.
Data Source
AI summary
Systems, apparatuses, and methods related to a flip-on-precharge disable operation are described herein. In an example, a flip-on-precharge disable operation can include activating a set of memory cells in a memory device to perform a memory access. The memory device can include a plurality of sets of memory cells corresponding to respective portions of an array of memory cells of the memory device. The flip-on-precharge disable operation can further include receiving signaling indicative of a command for a precharge operation on a set of the plurality of sets of memory cells. The signaling can include one or more bits that indicates whether to disable a randomly performed flip operation on the set of memory cells. The flip-on-precharge disable operation can include, in response to the one or more bits indicating to disable the flip operation, performing the precharge operation without randomly performing the flip operation on the set of memory cells.