Semiconductor Device Address Conversion for Wear Reduction
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Solution Overview
Problem
Semiconductor devices, particularly non-volatile and volatile memory systems, face degradation and reduced lifespan due to intensive access in specific regions, leading to unexpected malfunctions and shortened lifespan.
Innovation Solution
Incorporating a mode setting circuit and address converter that dynamically allocates mode signals to generate conversion addresses, preventing intensive access by redistributing data across memory regions, thereby reducing wear and tear on specific areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If address conversion is not performed, then access speed is fast and simple, but specific memory regions experience intensive access leading to degradation
Solution Approach 1:
An address converter is introduced as an intermediary component between the controller and memory circuit. The address converter receives addresses from the controller, performs conversion based on mode signals to generate alternative addresses, and outputs these converted addresses to the memory circuit. This mediator prevents direct intensive access to specific memory regions while maintaining simple controller logic.
Solution Approach 2:
The address conversion system dynamically adjusts addressing behavior based on mode signals that indicate different operational states. The address converter can switch between different conversion modes (e.g., normal mode, alternative mode) depending on the mode signal value, allowing the system to adaptively prevent degradation in frequently accessed regions while maintaining performance in other regions.
2Reliability
If address conversion is implemented to prevent intensive access, then memory region wear is reduced, but address conversion overhead increases access time
Solution Approach 1:
Address conversion is performed in advance before actual memory access operations. The address converter receives addresses early in the access sequence, performs the conversion, and outputs converted addresses ready for immediate memory access. This preliminary address transformation eliminates the need for real-time conversion during critical access operations, reducing time loss.
Solution Approach 2:
The address converter changes address parameters by applying different conversion algorithms based on mode signals. When degradation prevention is needed, the converter transforms addresses to point to alternative memory regions. The conversion process modifies address parameters systematically rather than requiring complex real-time calculations, minimizing time overhead.
Data Source
AI summary
A semiconductor device includes a mode setting circuit configured to allocate any one of values to a mode signal based on an event signal, an address converter configured to generate a conversion address by converting at least one address based on the mode signal, and a memory circuit configured to perform an operation corresponding to the conversion address.