Patent ID: 11894297
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A metal-insulator-metal capacitor, comprising:
N electrodes and (N−1) passivation layers, wherein the N electrodes and the (N−1) passivation layers are alternately stacked on a substrate, N is an integer larger than 2, the N electrodes comprise an mth electrode to an Nth electrode sequentially arranged in a direction parallel to a normal direction of the substrate, m is 1 to N−1, a thickness of the mth electrode is smaller than a thickness of the Nth electrode, the thickness of the mth electrode is less than or equal to a thickness of the m+1th electrode, and wherein:
a first electrode among the N electrodes is disposed on the substrate,
a first passivation layer among the (N−1) passivation layers is disposed on the first electrode and the substrate, and the first passivation layer has a step region that continuously contacts and extends from a top surface of the first electrode to sidewalls of the first electrode, and
a second electrode among the N electrodes is disposed on the first passivation layer, and the second electrode has a step region that continuously contacts and extends from a top surface of the first passivation layer to sidewalls of the first passivation layer.