Patent ID: 11881503
Assignee: FUJIAN JINHUA INTEGRATED CIRCUIT CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A semiconductor memory device comprising:
a substrate;
a plurality of first electrodes, disposed on the substrate;
a first high-k dielectric layer disposed on sidewalls of each of the first electrodes;
a second high-k dielectric layer disposed over the substrate, covering the first electrodes and the first high-k dielectric layer;
a first supporting layer disposed over the substrate, between two adjacent ones of the first electrodes, wherein the first high-k dielectric layer directly contacts two opposite surfaces of the first supporting layer, and the second high-k dielectric layer directly contacts another two opposite surface of the first supporting layer, and a top portion of the first electrode simultaneously contacts the first high-k dielectric layer and the first supporting layer; and
a second electrode, disposed on the second high-k dielectric layer, wherein the second high-k dielectric layer is disposed between the first electrodes and the second electrode.