Abstract:
가변저항메모리장치는제1 도전라인들, 제2 도전라인들, 및메모리유닛을포함할수 있다. 상기제1 도전라인들은각각이기판상면에평행한제2 방향으로연장될수 있으며, 상기기판상면에평행하고상기제2 방향과교차하는제1 방향을따라복수개로형성될수 있다. 상기제2 도전라인들은상기제1 도전라인들상에서각각이상기제1 방향으로연장될수 있으며, 상기제2 방향을따라복수개로형성될수 있다. 상기메모리유닛은상기제1 및제2 도전라인들사이에서상기기판상면에수직한제3 방향으로이들이서로오버랩되는각 영역들에형성될수 있으며, 전극구조물, 상기전극구조물의중앙부상면에형성된절연패턴, 및상기전극구조물의가장자리상면에형성되어상기절연패턴의측벽에접촉하는가변저항패턴을포함할수 있다.
Abstract:
전기 저항이 높은 상변화 기록막 및 그 상변화 기록막을 형성하기 위한 스퍼터링 타겟을 제공한다. 원자% 로 Ge: 15~30%, Sb: 15~30% 를 함유하고, 추가로 (1) Al 및 Si 중의 1종 또는 2종을 합계로 0.1~13%, (2) C를 0.2~8%, (3) B를 0.2~12%, 혹은 (4) Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu 중의 1종 또는 2종 이상을 합계로: 0.1~10%, 로 이루어진 그룹 중 어느 하나를 함유하고, 잔부가 Te 및 불가피한 불순물로 이루어지는 조성을 갖는 전기 저항이 높은 상변화 기록막, 및 그 막을 형성하기 위한 스퍼터링 타겟.
Abstract:
PURPOSE: A method for manufacturing a semiconductor device is provided to simply and stably separate a node of a phase change material pattern in a damascene structure. CONSTITUTION: A conductive layer is formed on a semiconductor substrate(110). A first interlayer insulating film(150) is formed on the conductive layer. A first via hole(151) exposes the conductive layer to the first interlayer insulating film. A first phase change material film is formed on the first interlayer insulating film and the first via hole. A first phase change material pattern(152) is formed by etching the first phase change material film.
Abstract:
PURPOSE: A resistance variable memory device and a method for forming the same are provided to improve electrical characteristic and reliability by solving the misalignment between a top electrode and a variable resistance pattern. CONSTITUTION: In a resistance variable memory device and a method for forming the same, a bottom electrode(112) is formed on a substrate. A first interlayer insulating film comprises a trench(115) extended to a first direction. A top electrode(137) is extended to a second direction crossing with the first direction. A variable resistance pattern(123) is formed on the bottom electrode as an isolated type. A heat leakage prevention pattern(128) is formed on the variable resistance pattern.
Abstract:
PURPOSE: A method for manufacturing a phase transition memory device with a multiple electrode layer is provided to minimize the heat from the interface between a lower electrode and a phase transition pattern to the peripheral region by forming a lower electrode made of the multiple layer. CONSTITUTION: An interlayer insulation layer(1200), a mold(115) and a preliminary electrode are formed on a substrate(1010). The interlayer insulation layer and the mold face each other. The preliminary electrode is positioned between the interlayer insulation layer and the mold. A first electrode(110) is formed by etching the preliminary electrode and then a gap is formed between the first insulation layer and the mold. A second electrode(120) is formed to fill the gap. The phase transition pattern is formed on the second electrode.
Abstract:
A phase-change memory unit, a manufacturing method thereof, a phase-change memory device having the same and a manufacturing method of a phase-change memory device are provided to reduce amount of metallic component diffused to a phase change material layer pattern by forming a transition metal film pattern between a phase change material layer and an upper electrode. A bottom electrode(120) is formed on the substrate. A phase change material layer pattern(152) is formed on the bottom electrode. The phase change material layer pattern comprises carbon and GST compound. A first transition metal film pattern(162) is formed on the phase change material layer pattern. An upper electrode(172) is formed on the first transition metal film pattern. The first transition metal film pattern comprises one or more selected from the group consisting of titanium(Ti), vanadium(V), chrome(Cr), manganese(Mn), iron(Fe), cobalt(Co), nickel(Ni), zirconium(Zr), niobium(Nb), molybdenum(Mo), ruthenium(Ru), rhodium(Rh), palladium(Pd), hafnium(Hf), tantalum(Ta), tungsten(W), rhenium(Re), osmium(Os), iridium(Ir) and platinum(Pt).
Abstract:
A phase change memory device and a manufacturing method thereof are provided to simplify a manufacturing process by forming titanium silicide at a portion in which a p-type semiconductor of a cell diode contacts a preliminary bottom electrode. An insulating layer(100) having a cell contact hole is formed on a semiconductor substrate(10). A cell diode(130) is formed in a lower region of the cell contact hole. A preliminary bottom electrode(150) is formed on the cell diode in the cell contact hole, and a diode electrode is formed at a portion in which the preliminary bottom electrode contacts the cell diode. A bottom electrode(170) is formed on the preliminary bottom electrode in the cell contact hole, and a phase change material pattern is formed on the bottom electrode. A top electrode(210) is formed on the phase change material pattern.
Abstract:
상변화 물질을 이용한 기억 소자 및 그 형성 방법을 제공한다. 본 발명의 상변화 물질은 실리콘 및 질소 중 적어도 어느 하나가 도핑된 칼코겐 화합물을 포함한다. 실리콘 원소 및 질소 원소가 칼코겐 화합물의 비저항을 증가시켜 소자 동작시 요구되는 전류량을 감소시킬 수 있다. 칼코겐 원소, 칼코게나이드, 상변화 물질, 상변화 기억 소자