Patent ID: 6599847
Filing Date: 2003-07-29
Classification: C23C,H01L

Abstract:
A method for forming for use within an integrated circuit a gap filling sandwich composite dielectric layer construction comprising:providing a substrate; forming upon the substrate a patterned layer; forming upon the patterned layer a single layer first conformal dielectric layer, the single layer first conformal dielectric layer being formed through a first plasma enhanced chemical vapor deposition (PECVD) method employing a first source material, the first plasma enhanced chemical vapor deposition (PECVD) method also employing a single first radio frequency power optimized primarily to limit plasma induced damage to the substrate and the patterned layer, the single first radio frequency power also being optimized secondarily to limit moisture permeation through the single layer first conformal dielectric layer; forming upon the single layer first conformal dielectric layer a gap filling dielectric layer; and forming upon the gap filling dielectric layer a second conformal dielectric layer, the second conformal dielectric layer being formed through a second plasma enhanced chemical vapor deposition (PECVD) method employing a second source material, the second plasma enhanced chemical vapor deposition (PECVD) method also employing a second radio frequency power optimized primarily to limit moisture permeation through the second conformal dielectric layer.