摘要:
Provided are a flash memory device and a method of manufacturing the same. The flash memory device includes strings. Each of the strings has a string selection line, a ground selection line, and an odd number of word lines formed between the string selection line and the ground selection line.
摘要:
Provided are a flash memory device and a method of manufacturing the same. The flash memory device includes strings. Each of the strings has a string selection line, a ground selection line, and an odd number of word lines formed between the string selection line and the ground selection line.
摘要:
Provided are a flash memory device and a method of manufacturing the same. The flash memory device includes strings. Each of the strings has a string selection line, a ground selection line, and an odd number of word lines formed between the string selection line and the ground selection line.
摘要:
A fine pattern is formed in an integrated circuit substrate, by forming a sacrificial pattern on the integrated circuit substrate. The sacrificial pattern includes tops and side walls. Atomic layer deposition is then performed to atomic layer deposit a mask material layer on the sacrificial pattern, including on the tops and the side walls thereof, and on the integrated circuit substrate therebetween. The mask material layer that was atomic layer deposited is then etched, to expose the top and the integrated circuit therebetween, such that a mask material pattern remains on the side walls. The sacrificial pattern is then removed, and the integrated circuit substrate is then etched through the mask material pattern that remains.
摘要:
A method for forming fine patterns of a semiconductor device includes forming an etching film on a substrate having first and second areas, forming first mask patterns on the substrate to have a first pattern density in the first area and a second pattern density in the second area, forming first capping patterns between the first mask patterns, forming second capping patterns between the first mask patterns, such that recess areas are formed between second capping patterns, and such that a first etching pattern is defined to include the first and second capping patterns, forming second mask patterns in the recess areas to include the first and second mask patterns, removing one of the first and second etching patterns, such that a single etching pattern is remaining on the substrate, and etching the etching film using the remaining etching pattern as an etch mask to form etching film patterns.
摘要:
A method for forming fine patterns of a semiconductor device includes forming an etching film on a substrate having first and second areas, forming first mask patterns on the substrate to have a first pattern density in the first area and a second pattern density in the second area, forming first capping patterns between the first mask patterns, forming second capping patterns between the first mask patterns, such that recess areas are formed between second capping patterns, and such that a first etching pattern is defined to include the first and second capping patterns, forming second mask patterns in the recess areas to include the first and second mask patterns, removing one of the first and second etching patterns, such that a single etching pattern is remaining on the substrate, and etching the etching film using the remaining etching pattern as an etch mask to form etching film patterns.
摘要:
A method of forming hard mask employs a double patterning technique. A first hard mask layer is formed on a substrate, and a first sacrificial pattern is formed on the first hard mask layer by photolithography. Features of the first sacrificial pattern are spaced from one another by a first pitch. A second hard mask layer is then formed conformally on the first sacrificial pattern and the first hard mask layer so as to delimit recesses between adjacent features of the first sacrificial pattern. Upper portions of the second hard mask layer are removed to expose the first sacrificial pattern, and the exposed first sacrificial pattern and the second sacrificial pattern are removed. The second hard mask layer and the first hard mask layer are then etched to form a hard mask composed of residual portions of the first hard mask layer and the second hard mask layer. A fine pattern of a semiconductor device, such as a trench isolation region or a pattern of contact holes, can be formed using the hard mask as an etch mask.
摘要:
A method of forming hard mask employs a double patterning technique. A first hard mask layer is formed on a substrate, and a first sacrificial pattern is formed on the first hard mask layer by photolithography. Features of the first sacrificial pattern are spaced from one another by a first pitch. A second hard mask layer is then formed conformally on the first sacrificial pattern and the first hard mask layer so as to delimit recesses between adjacent features of the first sacrificial pattern. Upper portions of the second hard mask layer are removed to expose the first sacrificial pattern, and the exposed first sacrificial pattern and the second sacrificial pattern are removed. The second hard mask layer and the first hard mask layer are then etched to form a hard mask composed of residual portions of the first hard mask layer and the second hard mask layer. A fine pattern of a semiconductor device, such as a trench isolation region or a pattern of contact holes, can be formed using the hard mask as an etch mask.
摘要:
A method of forming hard mask employs a double patterning technique. A first hard mask layer is formed on a substrate, and a first sacrificial pattern is formed on the first hard mask layer by photolithography. Features of the first sacrificial pattern are spaced from one another by a first pitch. A second hard mask layer is then formed conformally on the first sacrificial pattern and the first hard mask layer so as to delimit recesses between adjacent features of the first sacrificial pattern. Upper portions of the second hard mask layer are removed to expose the first sacrificial pattern, and the exposed first sacrificial pattern and the second sacrificial pattern are removed. The second hard mask layer and the first hard mask layer are then etched to form a hard mask composed of residual portions of the first hard mask layer and the second hard mask layer. A fine pattern of a semiconductor device, such as a trench isolation region or a pattern of contact holes, can be formed using the hard mask as an etch mask.
摘要:
A method of forming hard mask employs a double patterning technique. A first hard mask layer is formed on a substrate, and a first sacrificial pattern is formed on the first hard mask layer by photolithography. Features of the first sacrificial pattern are spaced from one another by a first pitch. A second hard mask layer is then formed conformally on the first sacrificial pattern and the first hard mask layer so as to delimit recesses between adjacent features of the first sacrificial pattern. Upper portions of the second hard mask layer are removed to expose the first sacrificial pattern, and the exposed first sacrificial pattern and the second sacrificial pattern are removed. The second hard mask layer and the first hard mask layer are then etched to form a hard mask composed of residual portions of the first hard mask layer and the second hard mask layer. A fine pattern of a semiconductor device, such as a trench isolation region or a pattern of contact holes, can be formed using the hard mask as an etch mask.