Patent ID: 11942126
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A magnetoresistive random-access memory (MRAM) cell, the MRAM cell comprising:
a top contact;
a hard mask layer below the top contact;
a magnetic tunnel junction (MTJ) below the hard mask layer;
a diffusion barrier below the MTJ;
a bottom contact below the diffusion barrier; and
a magnetic liner arranged around at least a portion of the bottom contact,
wherein the MRAM cell is part of a memory array comprising a plurality of MRAM cells, the plurality of MRAM cells containing a first set of MRAM cells having a bottom contact and magnetic liner with a first critical dimension and a second set of MRAM cells having a bottom contact and magnetic liner with a second critical dimension that is different than the first critical dimension.