Patent ID: 9065035
Filing Date: 2015-06-23
Classification: H01L

Abstract:
1. A method for constructing an array of thermally assisted magnetoresistive random access memory (MRAM) cells, the method comprising: depositing a first metal layer, the first metal layer including a plurality of pads and a plurality of first metal lines, wherein none of the plurality of pads are in direct contact with any of the plurality of first metal lines; forming an interlayer over the first metal layer, wherein the none of plurality of first metal lines are in direct contact with the interlayer; forming a plurality of first magnetic stacks in direct contact with the interlayer; forming a plurality of first vias in direct contact with the pads; depositing a second metal layer over the interlayer, the second metal layer including a plurality of second metal lines and a plurality of metal straps, wherein none of the second metal lines are in direct contact with any of the metal straps, each of the metal straps is in direct contact with one of the first magnetic stacks and one of the first vias, and the plurality of second metal lines are perpendicular to the first metal lines.