Abstract:
A storage device in accordance with the inventive concepts includes at least one nonvolatile memory device and a memory controller controlling the nonvolatile memory device. The memory controller includes at least one processor configured to control an operation of the storage device, and configured to perform at least one of a trim operation according a trim command and a garbage collection operation and a risk protection controller configured to perform a risk protection operation that disables at least one of the garbage collection operation or the trim operation according to a risk protection signal internally generated or a risk protection command input from the external device.
Abstract:
A method for testing a memory chip including: performing an electrical die sorting (EDS) test on the memory chip; performing a package test when the EDS test is passed; performing a module test when the package test is passed; performing a mounting test when the module test is passed; and setting the memory chip to a mirroring mode through a fusing operation when the EDS test, tire package test, tire module test or the mounting test is failed.