摘要:
A method for forming a fine pattern of a semiconductor device includes forming a first hard mask layer over a semiconductor substrate and a second hard mask layer over the first hard mask layer, selectively etching the second hard mask layer and the first hard mask layer by using a line/space mask as an etching mask to form a second hard mask layer pattern and a first hard mask layer pattern, forming an insulating film filling the second hard mask layer pattern and the first hard mask layer pattern, selectively etching the second hard mask layer and its underlying first hard mask layer pattern by using the insulating film as an etching mask to form a fourth hard mask layer pattern overlying a third hard mask layer pattern, removing the insulating film and the fourth hard mask layer pattern, and patterning the semiconductor substrate by using the third hard mask layer pattern as an etching mask, to form a fine pattern.
摘要:
A method for forming a fine pattern of a semiconductor device comprises: forming a first hard mask film and an etch barrier film over a semiconductor substrate; forming a sacrificial pattern over the etch barrier film; forming a spacer on sidewalls of the sacrificial pattern; removing the sacrificial pattern; etching the etch barrier film and the hard mask film with the spacer as an etch mask to form an etch barrier pattern and a hard mask pattern; and removing the spacer and the etch barrier pattern, thereby improving yield and reliability of the device.
摘要:
A method for forming a fine pattern of a semiconductor device includes forming a first hard mask layer over a semiconductor substrate, forming a second hard mask layer pattern over the first hard mask layer, forming a spacer on a sidewall of the second hard mask layer pattern, selectively etching the first hard mask layer by using the spacer and the second hard mask layer pattern as an etching mask to form a first hard mask layer pattern, forming a first insulating film filling the second hard mask layer pattern and the first hard mask layer pattern, selectively etching the second hard mask layer pattern and the underlying first hard mask layer pattern to form a third hard mask layer pattern, removing the first insulating film and the spacer, and patterning the semiconductor substrate by using the third hard mask layer pattern as an etching mask to form a fine pattern.
摘要:
A method for manufacturing a semiconductor device includes forming a second storage node contact hole with a mask for storage node and securing an overlay margin between a storage node contact hole and a storage node with a hard mask layer that serves as a hard mask as well as an anti-reflection film to reduce contact resistance, prevent reduction of a line-width of a lower interlayer insulating film and eliminate processes for depositing the interlayer insulating film and a polysilicon layer and etching the polysilicon layer to reduce a production period and cost of products.
摘要:
A method for forming a pattern of a semiconductor device is provided. Specifically, in a method for manufacturing a NAND flash memory device using a spacer patterning process, a dummy pattern, which is not used in an actual device operation, is additionally formed in a peripheral circuit region when a photoresist pattern for forming a string pattern is formed in a cell region. As a result, the edge photoresist pattern is prevented from being bent, and a critical dimension difference between the center region and the edge region of the photoresist pattern is not generated, thereby improving a margin of DOF to obtain a reliable semiconductor device.
摘要:
A method for manufacturing a semiconductor device includes forming a spin-on-carbon (SOC) film that facilitates a low temperature baking process, can prevent collapse of vertical transistors while forming a bit line, thereby providing a more simple manufacturing method and improving manufacturing yields.
摘要:
A method for forming a fine pattern of a semiconductor device comprises forming a deposition pattern including first, second, and third mask patterns over a semiconductor substrate having an underlying layer, side-etching the second mask pattern with the third mask pattern as an etching barrier mask, removing the third mask pattern, forming a spin-on-carbon layer that exposes the upper portion of the second mask pattern, performing an etching process to expose the underlying layer with the spin-on-carbon layer as an etching barrier mask, and removing the spin-on-carbon layer.
摘要:
Disclosed herein are photoresist cleaning solutions useful for cleaning a semiconductor substrate in the last step of a developing step when photoresist patterns are formed. Also disclosed herein are methods for forming photoresist patterns using the solutions. The cleaning solutions of the present invention include H2O as a primary component, a surfactant as an additive, and optionally an alcohol compound. The cleaning solution of the present invention has lower surface tension than that of distilled water which has been used for conventional cleaning solutions, thereby improving resistance to pattern collapse and stabilizing the photoresist pattern formation.
摘要翻译:本文公开了当形成光致抗蚀剂图案时在显影步骤的最后步骤中用于清洁半导体衬底的光致抗蚀剂清洁溶液。 本文还公开了使用该溶液形成光致抗蚀剂图案的方法。 本发明的清洗溶液包括作为主要组分的H 2 O 2,作为添加剂的表面活性剂和任选的醇化合物。 本发明的清洗液比常规清洗液使用的蒸馏水具有更低的表面张力,从而提高了图案的崩溃性和稳定光刻胶图形的形成。
摘要:
A method for forming a fine pattern of a semiconductor device includes forming a first hard mask layer over a semiconductor substrate and a second hard mask layer over the first hard mask layer, selectively etching the second hard mask layer and the first hard mask layer by using a line/space mask as an etching mask to form a second hard mask layer pattern and a first hard mask layer pattern, forming an insulating film filling the second hard mask layer pattern and the first hard mask layer pattern, selectively etching the second hard mask layer and its underlying first hard mask layer pattern by using the insulating film as an etching mask to form a fourth hard mask layer pattern overlying a third hard mask layer pattern, removing the insulating film and the fourth hard mask layer pattern, and patterning the semiconductor substrate by using the third hard mask layer pattern as an etching mask, to form a fine pattern.
摘要:
A method for aligning wafer includes selecting a nun-defective wafer alignment mark of a first wafer loaded in an exposure apparatus, and storing non-defective wafer alignment marks as a gray level reference image. A plurality of wafer alignment marks of a loaded second wafer are stored. Each of the plurality of wafer alignment mark images of the second wafer are respectively compared with the reference image of the first wafer pixel by pixel to obtain matching value for each of the plurality of the wafer alignment mark images. Each of the plurality of values of the matching values are compared with a set minimum value. The wafer alignment mark image having the matching value smaller than the minimum value with the reference image is replaced. The alignment information for an underlying layer using a wafer alignment information for an underlying layer using a wafer alignment sensor is obtained.