摘要:
A method for fabricating a semiconductor device includes forming an etching target layer over a substrate including a first region and a second region; forming a hard mask layer over the etching target layer; forming a first etch mask over the hard mask layer, wherein the first etch mask includes a plurality of line patterns and a sacrificial spacer layer formed over the line patterns; forming a second etch mask over the first etch mask, wherein the second etch mask includes a mesh type pattern and a blocking pattern covering the second region; removing the sacrificial spacer layer; forming hard mask layer patterns having a plurality of holes by etching the hard mask layer using the second etch mask and the first etch mask; and forming a plurality of hole patterns in the first region by etching the etching target layer using the hard mask layer patterns.
摘要:
A method for forming contact holes in a semiconductor device includes forming a hard mask layer over an etch target layer, forming a first line pattern in the hard mask layer by etching a portion of the hard mask layer through a primary etch process, forming a second line pattern crossing the first line pattern by etching the hard mask layer including the first line pattern through a secondary etch process, and etching the etch target layer by using the hard mask layer including the first line pattern and the second line pattern as an etch barrier.
摘要:
A method for fabricating a semiconductor device includes forming an etching target layer over a substrate including a first region and a second region; forming a hard mask layer over the etching target layer; forming a first etch mask over the hard mask layer, wherein the first etch mask includes a plurality of line patterns and a sacrificial spacer layer formed over the line patterns; forming a second etch mask over the first etch mask, wherein the second etch mask includes a mesh type pattern and a blocking pattern covering the second region; removing the sacrificial spacer layer; forming hard mask layer patterns having a plurality of holes by etching the hard mask layer using the second etch mask and the first etch mask; and forming a plurality of hole patterns in the first region by etching the etching target layer using the hard mask layer patterns.
摘要:
A method for forming a capacitor in a semiconductor device comprises forming an inter-layer layer on a semi-finished substrate; etching the inter-layer insulation layer to form a plurality of first contact holes; forming a first insulation layer on sidewalls of the first contact holes; forming a plurality of storage-node contact plugs filled into the first contact holes; forming a second insulation layer with a different etch rate from the first insulation layer over the storage-node contact plugs; forming a third insulation layer on the second insulation layer; sequentially etching the third insulation layer and the second insulation layer to form a plurality of second contact holes exposing the storage-node contact plugs; and forming the storage node on each of the second contact holes.
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 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:
A method for forming a capacitor in a semiconductor device comprises forming an inter-layer layer on a semi-finished substrate; etching the inter-layer insulation layer to form a plurality of first contact holes; forming a first insulation layer on sidewalls of the first contact holes; forming a plurality of storage-node contact plugs filled into the first contact holes; forming a second insulation layer with a different etch rate from the first insulation layer over the storage-node contact plugs; forming a third insulation layer on the second insulation layer; sequentially etching the third insulation layer and the second insulation layer to form a plurality of second contact holes exposing the storage-node contact plugs; and forming the storage node on each of the second contact holes.
摘要:
The present invention provides a method for fabricating a semiconductor device capable of decreasing a parasitic capacitance to thereby increase a cell capacitance. To achieve this effect, the deposited third inter-layer insulation layer is planarized and is subjected to a wet etching process to make its height lower than that of the bit line. Afterwards, the nitride-based etch stop layer is formed on the etched third inter-layer insulation layer, and then, the contact hole for forming the storage node contact plug is formed in between the bit lines through the SAC process so that the etch stop layer does not remain at sidewalls of the bit line. From this structure, it is possible to decrease the parasitic capacitance, and this decrease further provides an effect of increasing the cell capacitance.
摘要:
A method for forming a capacitor in a semiconductor device comprises forming an inter-layer layer on a semi-finished substrate; etching the inter-layer insulation layer to form a plurality of first contact holes; forming a first insulation layer on sidewalls of the first contact holes; forming a plurality of storage-node contact plugs filled into the first contact holes; forming a second insulation layer with a different etch rate from the first insulation layer over the storage-node contact plugs; forming a third insulation layer on the second insulation layer; sequentially etching the third insulation layer and the second insulation layer to form a plurality of second contact holes exposing the storage-node contact plugs; and forming the storage node on each of the second contact holes.
摘要:
A method for forming a capacitor in a semiconductor device comprises forming an inter-layer layer on a semi-finished substrate; etching the inter-layer insulation layer to form a plurality of first contact holes; forming a first insulation layer on sidewalls of the first contact holes; forming a plurality of storage-node contact plugs filled into the first contact holes; forming a second insulation layer with a different etch rate from the first insulation layer over the storage-node contact plugs; forming a third insulation layer on the second insulation layer; sequentially etching the third insulation layer and the second insulation layer to form a plurality of second contact holes exposing the storage-node contact plugs; and forming the storage node on each of the second contact holes.