摘要:
Disclosed is a method for fabricating a semiconductor device by using an amorphous carbon layer as a sacrificial hard mask. The method includes the steps of: forming an amorphous carbon layer on an etch target layer; forming a photoresist pattern on the amorphous carbon layer; etching the amorphous carbon layer by using the photoresist pattern to form a sacrificial hard mask; and etching the etch target layer by using the sacrificial hard mask to form a predetermined pattern.
摘要:
The present invention relates to a method for fabricating a semiconductor device using tungsten as a sacrificial hard mask material. The method includes the steps of: forming a layer on an etch target layer; forming a photoresist pattern on the layer; etching the layer by using the photoresist pattern as an etch mask along with use of a plasma containing CHF3 gas to form a sacrificial hard mask; and etching the etch target layer by using at least the sacrificial hard mask as an etch mask, thereby obtaining a predetermined pattern.
摘要翻译:本发明涉及使用钨作为牺牲硬掩模材料制造半导体器件的方法。 该方法包括以下步骤:在蚀刻目标层上形成层; 在该层上形成光致抗蚀剂图案; 通过使用光致抗蚀剂图案作为蚀刻掩模以及使用含有CHF 3 N 3气体的等离子体来蚀刻该层以形成牺牲硬掩模; 并且通过使用至少牺牲硬掩模作为蚀刻掩模来蚀刻蚀刻目标层,由此获得预定图案。
摘要:
Disclosed is a method for fabricating a semiconductor device by using an amorphous carbon layer as a sacrificial hard mask. The method includes the steps of: forming an amorphous carbon layer on an etch target layer; forming a photoresist pattern on the amorphous carbon layer; etching the amorphous carbon layer by using the photoresist pattern to form a sacrificial hard mask; and etching the etch target layer by using the sacrificial hard mask to form a predetermined pattern.
摘要:
The present invention relates to a method for fabricating a semiconductor device using tungsten as a sacrificial hard mask material. The method includes the steps of: forming a layer on an etch target layer; forming a photoresist pattern on the layer; etching the layer by using the photoresist pattern as an etch mask along with use of a plasma containing CHF3 gas to form a sacrificial hard mask; and etching the etch target layer by using at least the sacrificial hard mask as an etch mask, thereby obtaining a predetermined pattern.
摘要翻译:本发明涉及使用钨作为牺牲硬掩模材料制造半导体器件的方法。 该方法包括以下步骤:在蚀刻目标层上形成层; 在该层上形成光致抗蚀剂图案; 通过使用光致抗蚀剂图案作为蚀刻掩模以及使用含有CHF 3 N 3气体的等离子体来蚀刻该层以形成牺牲性硬掩模; 并且通过使用至少牺牲硬掩模作为蚀刻掩模来蚀刻蚀刻目标层,由此获得预定图案。
摘要:
The present invention relates to a method for forming a metal line in a semiconductor memory device having a word strapping structure. Especially, the metal line is formed by using a dual hard mask including a tungsten layer and a nitride layer as an etch mask. Also, the metal line includes at least more than one metal layer based on a material selected from titanium nitride and aluminum. Furthermore, for the formation of the dual hard mask, a photoresist pattern to which an ArF photolithography process and a KrF photolithography process are applicable is used. The method includes the steps of: forming a metal structure on a substrate; forming a dual hard mask on the metal structure; forming a photoresist pattern on the dual hard mask; patterning the dual hard mask by using the photoresist pattern as an etch mask; and patterning the metal structure by using the dual hard mask, thereby obtaining the metal line.
摘要:
A semiconductor device includes a substrate having trenches, buried bit lines formed in the substrate, and including a metal silicide layer and a metallic layer, wherein the metal silicide layer contacts sidewalls of the trenches and the metallic layer is formed over the sidewalls of the trenches and contacts the metal silicide layer.
摘要:
In a method of fabricating a semiconductor device having vertical channels and a method of patterning a gate electrode of such semiconductor device, an initial conductive layer is removed by multiple etching processes.
摘要:
A semiconductor device includes a substrate having trenches, buried bit lines formed in the substrate, and including a metal silicide layer and a metallic layer, wherein the metal silicide layer contacts sidewalls of the trenches and the metallic layer is formed over the sidewalls of the trenches and contacts the metal silicide layer.
摘要:
A method of fabricating a semiconductor device includes forming a plurality of pillar patterns on a substrate, filling a gap between the pillar patterns with a first conductive layer, forming a first hard mask layer pattern over the pillar patterns adjacent in one direction, etching the first conductive layer using the first hard mask layer pattern as an etch barrier, forming a second hard mask pattern over the pillar pattern adjacent in the other direction that crosses the one direction, and forming a gate electrode surrounding the pillar patterns by etching the first conductive layer etched using the second hard mask layer pattern as an etch barrier.
摘要:
In a method of fabricating a semiconductor device on a substrate having a pillar pattern, a gate electrode is formed on the pillar pattern without etching the latter. A conductive pattern is filled between adjacent pillar patterns, a spacer is formed above the conductive pattern and surrounding sidewalls of each pillar pattern, and the gate electrode is formed by etching the conductive pattern using the spacer as an etch barrier.