Abstract:
PURPOSE: A method for forming a pattern and a method for manufacturing a semiconductor device using the same are provided to prevent a collapse phenomenon by forming a single etch mask. CONSTITUTION: A first mask layer and a first sacrificial layer are successively formed on an etch object layer(105). The first sacrificial layer is partly etched to form a first sacrificial layer pattern. A second sacrificial layer pattern is formed on the first mask layer. The first sacrificial layer pattern is removed. A first mask layer pattern(115) is formed by partly etching the first mask layer. [Reference numerals] (AA) Second direction; (BB) First direction
Abstract:
A method for manufacturing a semiconductor device having a self-aligned cell diode and a method for manufacturing a phase-change memory device using the same are provided to restrain increase of electrical resistance due to a mis-alignment of the word lines and cell diodes by using self-cell diodes being self-aligned with word lines. A conductive layer is formed on a semiconductor substrate(40). A dielectric(44) is formed on the conductive layer. The dielectric and the conductive layer are patterned in turn to form isolation trenches for exposing the substrate and word lines(WL) defined by the isolation trenches. An isolation layer(54) is formed to gap-fill the isolation trenches. Cell contact holes pass through to expose the word lines. The cell contact holes are defined by the adjacent isolation layer to be self-aligned with the word lines. Cell diodes gap-fill the cell contact holes. When the isolation trenches and the word lines are formed, a first hard mask layer is formed on the dielectric, the first hard mask layer is patterned to form a line-shaped first preliminary hard mask patterns(46'), and the dielectric is etched by using the first preliminary hard mask patterns as etch masks.
Abstract:
PURPOSE: A semiconductor device and a method for manufacturing the same are provided to reduce resistance by burying a word line in a substrate. CONSTITUTION: Device isolation layers are extended in a substrate in one direction. Word lines (34) include metal. A first impurity region (12) is formed on the word line. An interlayer dielectric includes a through hole. A second impurity region (40) is in contact with the first impurity region.
Abstract:
본 발명은 멀티-레벨 상변환 메모리 장치의 쓰기 방법을 제공하며, 쓰기 방법은 프로그램될 데이터에 따라 선택된 메모리 셀에 제 1 쓰기 전류를 공급하는 단계와; 그리고 상기 프로그램될 데이터에 따라 상기 선택된 메모리 셀로 제 2 쓰기 전류를 공급하는 단계를 포함한다.
Abstract:
PURPOSE: A method for forming a contact and a method for manufacturing a phase change memory device using the same are provided to improve diode characteristics. CONSTITUTION: An insulation film pattern including a plurality of contact holes (163) is formed on a substrate (110). The insulation film pattern includes a first sidewall (161) of a first direction and a second sidewall of a second direction which is opposite to the first direction. A semiconductor pattern (166) is formed on the contact hole. A separation spacer (172) is formed on the semiconductor pattern and the side of the first sidewall to partially expose the semiconductor pattern. The semiconductor pattern is divided into a plurality of semiconductor pattern parts by etching the exposed semiconductor pattern using the separation spacer.
Abstract:
A phase change memory device and a method for forming the same are provided to widen the width of a cell hole in comparison with a minimum line width by performing sequentially a patterning process including an anisotropic etch process and an isotropic etch process. A dopant doping line(110) is formed on an upper surface of a semiconductor substrate(100). A mold insulating layer(120) is formed on the semiconductor substrate. A preliminary cell hole for exposing the dopant doping line is formed by patterning the mold insulating layer in an anisotropic etch method. A cell hole(125a) is formed by etching the mold insulating layer having the preliminary cell hole in an isotropic method. A diode(130) is formed within the cell hole. A heater electrode(140) is formed on the diode. A phase change pattern(145) is formed on the heater electrode.
Abstract:
PURPOSE: A semiconductor device and a method for manufacturing the same are provided to improve crystallization by performing an active epitaxial growth process on the front surface of a substrate. CONSTITUTION: A first semiconductor layer (118) has a first conductivity type. The first semiconductor layer is extended in a first direction. Second semiconductor layers (122) are separated from each other in the first direction. The second semiconductor layer has a second conductivity type. An insulating layer structure (130) surrounds the sidewalls of the first semiconductor layer and the second semiconductor layers and.
Abstract:
본 발명은 가변저항 메모리 장치를 제공한다. 상기 가변저항 메모리 장치는 프로그램된 데이터 상태에서의 칼코겐 물질의 저항의 시간에 따른 변동지수가 0.18 이하가 되도록 조절된다. 상기 칼코겐 물질이 수소, 탄소 또는 질소 원자를 함유하도록 하여, 칼코겐 비정질 물질의 저항 드리프트를 최소화한다. 멀티-레벨 가변 저항소자의 데이터들이 안정된 상태를 유지할 수 있다. 칼코겐, 저항, 드리프트, 멀티-레벨