Patent ID: 9570137
Date: 2017-02-14
CPC Classifications: G11C,H01L,H03K

Claim:
1. A magnetic memory, comprising: a magnetoresistive device having a first resistance state and a second resistance state and including a first ferromagnetic layer and a second ferromagnetic layer, a direction of magnetization of the first ferromagnetic layer being changeable, a direction of magnetization of the second ferromagnetic layer being changeable, resistance between the first ferromagnetic layer and the second ferromagnetic layer being higher in the second resistance state than in the first resistance state; a load resistance unit electrically connected to the magnetoresistive device, the load resistance unit having a first state and a second state, differential resistance of the load resistance unit at the second state being lower than differential resistance of the load resistance unit at the first state; and a controller switching the magnetoresistive device to the first resistance state by current flowing in a first direction between the first ferromagnetic layer and the second ferromagnetic layer with the load resistance unit being set to the first state, the controller switching the magnetoresistive device to the second resistance state by current flowing in the first direction between the first ferromagnetic layer and the second ferromagnetic layer with the load resistance unit being set to the second state.