Patent ID: 8953368
Filing Date: 2015-02-10
Classification: G11C

Abstract:
1. A data reading method of a magnetic memory device comprising: issuing a series of successive read commands each of which commands that data stored in a selected magnetic memory element be read; controlling the direction in which a read current flows through the selected magnetic memory element, including periodically changing the direction in which the read current will flow through the selected magnetic memory element between first and second opposite directions; before the direction in which the read current will flow through the selected magnetic memory element is changed from the first direction to the second direction: supplying a read current to the selected magnetic memory element in the first direction in response to the issuance of a respective one of the read commands, and sensing the magnitude of the current flowing from the selected magnetic memory element in the first direction to read data stored in the selected magnetic memory element; and after the direction in which the read current will flow through a selected magnetic memory element is changed from the first direction to the second direction: supplying a read current to the selected magnetic memory element in the second direction in response to the issuance of another of the read commands, and sensing the magnitude of the current flowing from the selected magnetic memory element in the second direction to read data stored in the selected magnetic memory element.