Patent ID: 8324069

Claim:
A method of manufacturing a capacitor, comprising: (a) forming a lower electrode layer; (b) forming a dielectric layer over the lower electrode layer; (c) forming an upper electrode layer over the dielectric layer; (d) forming an upper electrode of the capacitor by removing a portion of the upper electrode layer, wherein an inter-electrode region is disposed within a lateral boundary of the upper electrode and between the lower electrode layer and the upper electrode, and wherein a portion of the dielectric layer is disposed in the inter-electrode region; (e) exposing a portion of the lower electrode layer by removing a portion of the dielectric layer, wherein a portion of the dielectric layer is removed from the inter-electrode region; (f) forming a conformal insulating layer over the exposed portion of the lower electrode layer beside the portion of the dielectric layer disposed in the inter-electrode region, wherein a portion of the conformal insulating layer is formed in the inter-electrode region; and (g) forming an absorbing film over the conformal insulating layer.