Memory Bank Option Broadcasts for Per-Bank Trimming and Repair
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Solution Overview
Problem
Existing memory devices face challenges in efficiently repairing and optimizing individual memory banks due to the lack of per-bank specific broadcast operations for column repair and bank option information, leading to suboptimal performance.
Innovation Solution
Implementing a system that broadcasts bank option information on a per-bank basis during or immediately after column repair operations, allowing for individual optimization of each memory bank through trimming and functionality changes, such as sense amplifier settings and column repair schemes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If global option information is broadcast to all memory banks simultaneously, then the broadcast operation is simple and fast, but individual memory banks cannot receive customized optimization parameters
Solution Approach 1:
The patent segments the memory system into multiple independent memory banks (first memory bank, second memory bank, etc.), each capable of receiving and processing its own bank-specific option information separately. This segmentation allows customized trimming and optimization parameters to be applied to each bank individually while maintaining efficient broadcast operations within each segment.
Solution Approach 2:
The patent implements local quality by providing different bank option information to different memory banks based on their specific characteristics and requirements. Each memory bank receives customized trimming parameters, timing adjustments, and functionality settings tailored to its local performance needs, rather than applying a uniform global configuration to all banks.
2Reliability
If repair operations are performed on a row-by-row or column-by-column basis across all banks, then comprehensive repair coverage is achieved, but individual bank-specific repair optimizations are lost
Solution Approach 1:
The patent segments repair operations by implementing separate column repair circuits and repair memory structures for each memory bank. This allows each bank to have its own dedicated repair resources and parameters, enabling bank-specific repair optimizations while maintaining comprehensive coverage across all banks through systematic processing.
3Device complexity
If a single broadcast mechanism is used for all memory banks, then device complexity is reduced, but performance optimization for individual banks is suboptimal
Solution Approach 1:
The patent implements universality by designing a broadcast mechanism that can operate in multiple modes: global broadcast for common options and bank-specific broadcast for customized parameters. The same fundamental broadcast infrastructure serves both universal and individualized functions, maintaining relatively simple device architecture while enabling sophisticated per-bank performance optimization.
Data Source
AI summary
The present disclosure is generally directed to broadcasting bank option information to one or more memory banks in a memory device. In some instances, bank option information can be associated with a trimming operation for a memory bank. Each memory bank in a memory array can receive bank option information on a per bank basis. The bank option information may be broadcast before, during, or after the broadcast of a line repair information (e.g., column repair information). The bank option information enables the operation of each memory bank to be uniquely improved or optimized.