Patent ID: 6897159
Filing Date: 2005-05-24
Classification: H01L

Abstract:
1. A method for fabricating a semiconductor device, comprising the steps of: (a) forming a plurality of conductive structures on a substrate; (b) forming an etch stop layer on a substrate structure including the substrate and the conductive structures; (c) forming an inter-layer insulation layer on the etch stop layer; (d) sequentially forming an anti-reflective coating layer and a photoresist pattern on the inter-layer insulation layer; (e) etching the anti-reflective coating (ARC) layer by employing the photoresist pattern as an etch mask along with use of an etch gas of CF (f) etching a portion of the inter-layer insulation layer by employing the photoresist pattern and the ARC layer as an etch mask along with use of an etch gas of CF (g) etching the inter-layer insulation layer by employing the photoresist pattern and the ARC layer as an etch mask along with use of an etch gas of C (h) removing the exposed etch stop layer.