Patent ID: 6835631
Filing Date: 2004-12-28
Classification: H01L

Abstract:
A method of enhancing inductor performance, comprising the steps of:providing a structure having a first oxide layer formed thereover; forming a lower low-k dielectric layer over the first oxide layer; forming a second oxide layer over the lower low-k dielectric layer; patterning the second oxide layer to form at least one hole there through exposing a portion of the lower low-k dielectric layer; etching through the exposed portion of the lower low-k dielectric layer and into the lower low-k dielectric layer to from at least one respective air gap within the etched lower low-k dielectric layer; forming an upper low-k dielectric layer over the patterned second oxide layer; and forming at least one inductor within the upper low-k dielectric layer and over the at least one air gap whereby the performance of the at least one inductor is enhanced.