Patent ID: 11917923
Assignee: WINBOND ELECTRONICS CORP.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 0:
1. A magnetoresistive random access memory (MRAM) structure, comprising:
a substrate;
multiple MRAM cells on said substrate, wherein said MRAM cells are in a cell region adjacent to a logic region;
an atomic layer deposition dielectric layer between said MRAM cells and at outer sides of said MRAM cells in said cell region; and
an ultra low-k layer covering directly on said MRAM cells and said atomic layer deposition dielectric layer and covering entire said logic region and said cell region, wherein dents are formed on the top surface of said ultra low-k layer at boundaries between said cell region and said logic region, and metal layers and vias on said logic region are formed in said ultra low-k layer.