Patent ID: 7250371
Filing Date: 2007-07-31
Classification: H01L

Abstract:
1. A method of forming a plurality of conductive lines, comprising: placing a conductive layer over a substrate; forming a mask, wherein the mask defines a plurality of mask lines with mask spaces between the mask lines, wherein the mask spaces have a width and wherein the mask lines have a width and have sidewalls; placing the substrate in a plasma processing chamber depositing a conformal layer over the sidewalls of the mask, while the substrate is in the plasma processing chamber, wherein the depositing the conformal layer provides a portion of the bottom of a via without deposited conformal layer; etching the conductive layer through the mask to form conductive lines and spaces between the conductive lines, while the substrate is in the plasma processing chamber, wherein the conductive lines have a width and the spaces between the conductive line have widths, wherein the widths of the spaces between the conductive lines is less than the widths of the mask spaces, and wherein the widths of the conductive lines is greater than the widths of the line masks.