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

Claim 18:
19. 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 occupied by at least base corner elements comprising one or both of Ba and Bi, and
center sites interchangeably occupied by one or more base center elements and one or more dopant center elements, wherein the dopant center elements comprise one or more selected from the group consisting of Mn, Sc, Ti, V, Cr, Co, Ni, Cu and Zn;

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.