Patent ID: 6410106
Filing Date: 2002-06-25
Classification: H01L

Abstract:
A method for forming an intermetal dielectric layer, comprising:providing a substrate; forming a plurality of metal conductive lines on the substrate, wherein a tied conductive line region and a loose conductive line region consist of the plurality of metal conductive lines; forming a biased-clamped intermetal dielectric layer on the substrate; forming an unbiased-unclamped protection layer on the biased-clamped intermetal dielectric layer wherein the unbiased-unclamped protection layer is thinner than the biased-clamped intermetal dielectric layer; forming a cap layer on the unbiased-unclamped protection layer; and exposing the protection layer. 2.The method for forming the intermetal dielectric layer according to claim 1, wherein the unbiased-unclamped protection layer is a unbiased-unclamped fluorinated silicon glass layer.