Patent ID: 8629519

Claim:
A tunneling magnetoresistance sensor, comprising: a substrate; an insulating layer disposed on the substrate; a tunneling magnetoresistance component embedded in the insulating layer, the tunneling magnetoresistance component comprising a plurality of magnetic tunneling junction units; and a first electrode array disposed in the insulating layer and adjacent to the tunneling magnetoresistance component, the first electrode array comprising a plurality of first electrodes separated from each other by the insulating layer, the first electrodes being electrically connected to the tunneling magnetoresistance component to form a current-in-plane tunneling conduction mode, wherein each of the magnetic tunneling junction units is electrically connected to two neighboring first electrodes of the first electrode array; wherein the first electrode array is embedded in the insulating layer and disposed below the tunneling magnetoresistance component; and wherein each of the magnetic tunneling junction units comprises: a free layer, a pinned layer, and a tunnel barrier between the free layer and the pinned layer.