Patent ID: 11968908
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 16:
17. A device comprising:
an inter-layer dielectric over a semiconductor substrate, the semiconductor substrate comprising active devices;
a first inter-metal dielectric over the inter-layer dielectric;
a first conductive feature extending through the first inter-metal dielectric, the first conductive feature electrically connected to the active devices;
a first bottom electrode over the first conductive feature;
a first magnetic tunnel junction stack over the first bottom electrode;
a first top electrode comprising:
a first conductive layer over the first magnetic tunnel junction stack; and
a second conductive layer over the first conductive layer;

a spacer disposed on sidewalls of the first conductive layer, the second conductive layer, the first magnetic tunnel junction stack, and the first bottom electrode;
a second inter-metal dielectric having a first portion and a second portion, the first portion disposed over the inter-layer dielectric, the second portion extending at least partially into the inter-layer dielectric; and
a second conductive feature extending through the first portion of the second inter-metal dielectric, the second conductive feature electrically connected to the active devices.