| CPC G06F 21/78 (2013.01) [G06F 3/062 (2013.01); G06F 3/0652 (2013.01); G06F 3/0679 (2013.01); H01L 23/053 (2013.01); H01L 23/576 (2013.01)] | 16 Claims |
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1. A storage device comprising:
a processor;
a substrate including at least one security pad;
at least one data storage element mounted on the substrate, and including at least one nonvolatile memory including a normal data area configured to store normal data and at least one secure memory including a secure data area configured to store secure data;
a case surrounding the substrate and the at least one data storage element and including at least one contact structure for an electrical connection with the at least one security pad; and
at least one sensing pin configured to receive an electrical signal,
wherein a level of the electrical signal varies by detecting a change in a resistance according to whether the at least one security pad is electrically connected to the at least one contact structure,
wherein, when at least a part of the case is removed, a level change of the electrical signal is detected, a secure erase process for deleting the secure data stored in the secure data area of the at least one secure memory is performed, and the normal data area included in the at least one nonvolatile memory continues to be accessible to the processor after the secure erase process is performed,
wherein the at least one contact structure includes a first protrusion formed in the case and a resistive material formed in the case and spaced apart from the first protrusion,
wherein the case is formed of a conductive material,
wherein the first protrusion is directly in contact with the at least one security pad, and
wherein the level of the electrical signal is changed according to the resistive material and whether the at least one security pad and the first protrusion are in electrical contact.
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