Patent ID: 11949018
Assignee: KEPLER COMPUTING INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 26:
27. An integrated circuit device, comprising:
a capacitor comprising a ferroelectric oxide between first and second electrodes;
the ferroelectric oxide having a perovskite crystal structure, wherein a lattice of the perovskite crystal structure comprises:
corner sites interchangeably occupied by base corner elements comprising Pb and one or more dopant corner element, and
center sites interchangeably occupied by base center elements comprising Zr and Ti and one or more dopant center elements, wherein the dopant center elements comprise one or more selected from the group consisting of Mn, Sc, V, Cr, Co, Ni, Cu, Zn and a 4d series metal;

a vertical diffusion barrier disposed over one or both of the first and second electrodes; and
a side diffusion barrier disposed at one or more sidewalls of the capacitor and covering at least the ferroelectric oxide.