Patent ID: 6025260
Filing Date: 2000-02-15
Classification: H01L

Abstract:
A method of forming a borderless contact and an air gap in a semiconductor structure, the method comprising the steps of:forming a first trace and a second trace over an insulating layer, wherein the first trace is adjacent to the second trace;locating a dielectric material over and between the first trace and the second trace, wherein an air gap extends through the dielectric material between the first trace and the second trace, the air gap having a first width along a first portion of the air gap and a second width along a second portion of the air gap, the second width being greater than the first width, and the first portion of the air gap being located closer to the second trace than the first trace;forming a via through the dielectric material to expose the first trace at a location adjacent to the first portion of the air gap; anddepositing conductive material in the via.