Patent ID: 11895823
Assignee: WINBOND ELECTRONICS CORP.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. The manufacturing method of the semiconductor device of claim 1, wherein a method for forming the storage capacitor comprises:
sequentially forming a passivation layer and a supporting layer over the capacitor contact and the conductive ring;
removing a portion of the supporting layer and a portion of the passivation layer to form an opening partially exposing the capacitor contact and the conductive ring; and
conformally forming a bottom electrode layer over the supporting layer and the exposed portions of the capacitor contact and the conductive ring;
removing a portion of the bottom electrode layer above the supporting layer, wherein a remaining portion of the bottom electrode layer forms a bottom electrode;
removing the supporting layer; and
sequentially forming a dielectric layer and a top electrode layer covering the bottom electrode and the passivation layer, wherein the bottom electrode, the dielectric layer and the top electrode layer constitutes the storage capacitor.