Western Digital Technologies, Inc.

Sandisk Technologies Inc.

Yinfeng Yu

Liang Li

Loc Tu

Xuan Tian

A non-volatile storage apparatus comprises a plurality of memory cells that store host data and two models, a control circuit for writing to and reading from the memory cells, and an inference circuit. The inference circuit uses the first model with a first set of one or more metrics describing current operation of the non-volatile storage apparatus to make a first level prediction about defects and uses the second model with a second set of one or more metrics describing current operation of the non-volatile storage apparatus to make a second level prediction about defects. In one embodiment, the first level prediction is faster to make and uses less data collection, but is not as reliable, as the second level prediction. While second level prediction is more reliable, it takes more time to perform and requires a more intensive data collection, so it is only used when needed.

Non-volatile memory integrated with artificial intelligence system for preemptive block management

A non-volatile storage apparatus comprises one or more memory die assemblies, each of which includes an inference circuit positioned in the memory die assembly. The inference circuit is configured to use a pre-trained model (received pre-trained from a source external to the non-volatile storage apparatus and stored in a dedicated block in non-volatile memory) with one or more metrics describing current operation of the non-volatile storage apparatus in order to predict a defect in the non-volatile storage apparatus and perform a countermeasure to preserve host data prior to a non-recoverable failure in the non-volatile storage apparatus due to the defect.

Growing community of inventors

Shanghai, China

Yinfeng Yu