Patent ID: 7057289

Claim:
An integrated circuit structure, comprising: a first insulating layer comprising SILK material with a dielectric constant of about 2.65 at 100 kHz provided over a semiconductor substrate and contacting at least a portion of a metal layer provided within said semiconductor substrate, said first insulating layer having a thickness of about 4,000 Angstroms to about 30,000 Angstroms; a second insulating layer comprising NANOGLASS material with a dielectric constant of about 3.5 at 100 kHz provided over and in contact with said first insulating layer, said second insulating layer having a thickness of about 100 Angstroms to about 2,000 Angstroms; and at least a first opening within said first insulating layer, said first opening having a first portion with a first width and a second portion with a second width, said first width being different from said second width.