Memory Activation Timing Management for Wear-Out Prevention

The patent applies periodic action by introducing a delay mechanism that periodically interrupts continuous memory access operations. When a memory cell is accessed, a timer is started, and if another access to the same cell occurs before the timer expires, the access is delayed. This periodic timing control prevents continuous repeated access patterns that cause COP and CCP wear-out, while still allowing high-speed access when the timer has expired, thus resolving the contradiction between productivity and reliability.

The patent implements dynamics by making the delay mechanism adaptive rather than fixed. The delay is dynamically applied only when needed - specifically when a memory cell is accessed again before the timer expires. For first-time accesses or accesses after the timer has expired, no delay is introduced. This dynamic conditional delay prevents the systematic performance degradation that would result from a fixed delay, while still providing protection against COP and CCP wear-out mechanisms.

The patent applies self-service by using the natural operation flow of memory access to trigger refresh operations. Instead of implementing a separate, continuous refresh mechanism that would consume constant power, the system uses the timer mechanism already present for wear-out prevention to also handle refresh needs. When the timer expires, the memory cell is naturally re-accessed, which serves both as a refresh operation and as a normal memory access, eliminating the need for dedicated refresh power consumption.