Systems and methods for reducing memory failures

摘要

Methods and systems for an in-system repair process that repairs or attempts to repair random bit failures in a memory device are provided. In some examples, an in-system repair process may select alternative steps depending on whether the failure is correctable or uncorrectable. In these examples, the process uses communications between a system on chip and the memory to fix the failures during normal operation.

主权项

1. A method for in-system repair of a memory failure, the method comprising:
initiating operation of a memory; detecting, by the memory, a failure; determining, by the memory, if the failure is correctable or uncorrectable; upon determining the failure is correctable, performing a correctable error repair process; upon determining the failure is uncorrectable, performing an uncorrectable error repair process; communicating a fail status and information through a channel connecting the memory and a System on Chip (SoC); testing a failure address and a target repair row without an external device; and executing, by the SoC, a repair process by the SoC.