Abstract:
A phase change memory device and a manufacturing method thereof are provided to reduce a current supplied in reset operation by reducing interface dimensions between a phase change pattern and a bottom electrode in which joule heat is generated. Bit lines(BL) are parallel arranged with a vertical direction. Word lines(WL) are parallel arranged with a horizontal direction. The bit lines intersect with the word lines. Each phase change pattern(Rp) is arranged on an intersection of the bit lines and the word lines. Each diode(D) is serially connected to one corresponding to each phase change pattern. Each phase change pattern is connected to one corresponding to each bit line. Each diode is connected to one corresponding to each word line.
Abstract:
상변화 물질층 형성 방법 및 이를 이용한 상변화 메모리 장치의 제조 방법이 개시된다. 제1 플라즈마가 형성된 챔버 내에서 제1 전구체, 제2 전구체 및 제3 전구체를 이용한 싸이클릭 화학기상증착 공정을 수행하여 상기 기판 상에 제1 크기의 그레인을 갖는 하부 상변화 물질막을 형성한다. 이어서, 상기 제2 플라즈마가 형성된 챔버 내에서 제1 전구체, 제2 전구체 및 제3 전구체를 이용한 싸이클릭 화학기상증착 공정을 수행하여 상기 기판 상에 제1 크기보다 작은 제2 크기의 그레인을 갖는 상부 상변화 물질막을 형성한다. 그 결과 기판 상에는 하부 상변화 물질막이 적층된 구조를 갖고, 하부막과 우수한 접합특성을 가지면서 우수한 전기적 특성을 갖는 상변화 물질층을 형성할 수 있다.
Abstract:
A method for forming a semiconductor device including a phase change layer is provided to minimize the volatile characteristic of the phase change layer and to implement a continuous and uniform phase change layer by using germanium source gas as a process gas. A semiconductor substrate having an underlying conductive pattern is loaded into a process chamber(S200). Various source gases are injected into the process chamber to deposit a phase change layer(S210). After depositing the phase change layer, reactive byproducts in the process chamber are exhausted(S220). A process gas used in the forming of the phase change layer includes germanium source gas. The germanium source gas includes one selected from -N=C=O, -N=C=S, -N=C=Se, -N=C=Te, -N=C=Po, and -C N. The germanium source gas has a chemical formula of X^1X^2X^3GeY, wherein X^1, X^2, and X^3 are one selected from a saturated alkyl group, an olefinic alkyl group, acetylenic alkyl group, an allenic alkyl group, -NR^1R^2, -N3, -N=C=O, -N=C=S, -N=C=Se, -N=C=Te, -N=C=Po, and -C N, or a combination thereof, and Y is selected from -N=C=O, -N=C=S, -N=C=Se, -N=C=Te, -N=C=Po, and -C N.
Abstract translation:提供了一种用于形成包括相变层的半导体器件的方法,以使相变层的挥发性特性最小化,并且通过使用锗源气体作为工艺气体实现连续均匀的相变层。 具有下面的导电图案的半导体衬底被加载到处理室(S200)中。 将各种源气体注入到处理室中以沉积相变层(S210)。 沉积相变层后,处理室中的反应性副产物被耗尽(S220)。 用于形成相变层的工艺气体包括锗源气体。 锗源气体包括选自-N = C = O,-N = C = S,-N = C = Se,-N = C = Te,-N = C = Po和-CN中的一种。 源气体具有X 1,X 2 X 3 3GeY的化学式,其中X 1,X 2和X 3是选自饱和烷基,烯属烷基,炔基烷基,富烯基烷基 ,-NR 1,R 2,-N 3,-N = C = O,-N = C = S,-N = C = Se,-N = C = Te,-N = C = Po和-CN, Y = C = S,-N = C = Se,-N = C = Te,-N = C = Po和-CN。
Abstract:
콘택 구조체 형성방법, 이를 이용하는 반도체소자의 제조방법 및 그에 의해 제조된 반도체소자를 제공한다. 이 반도체소자의 제조방법은 반도체기판 상에 제1 개구부를 갖는 제1 몰딩 패턴을 형성하는 것을 포함한다. 적어도 상기 제1 개구부의 측벽을 덮는 절연막을 형성한다. 상기 절연막에 의해 측벽이 덮인 상기 제1 개구부의 나머지 부분을 채우는 제2 몰딩 패턴을 형성한다. 상기 절연막을 패터닝하여 절연 패턴을 형성함과 아울러, 상기 제1 및 제2 몰딩 패턴들의 측벽들 및 상기 절연 패턴의 측벽에 의해 한정된 제2 개구부를 형성한다. 상기 제2 개구부 내에 콘택 패턴을 형성한다.
Abstract:
PURPOSE: A method for manufacturing a variable resistance memory device is provided to prevent the deterioration of electrical/physical features due to stress in a hot temperature process. CONSTITUTION: A heating electrode(110) is formed on a semiconductor substrate(100). The heating electrode includes nitride of metal whose atomic radius is larger than titanium. A variable resistance material film(120) is formed on the heating electrode. An upper electrode(130) is formed on the variable resistance material film. A barrier film prevents a material from being spread between the upper electrode and the variable resistance material film.
Abstract:
PURPOSE: A method for manufacturing a phase change memory device with a TiC layer is provided to improve the morphology of a TiC layer by uniformly forming a contact area between the bottom electrodes and the phase change patterns on the entire region. CONSTITUTION: A TiC layer is formed on a substrate(51) by using a PE-cyclic CVD(Plasma enhanced cyclic chemical vapor deposition). A phase change pattern(85P) is formed on the TiC layer. The substrate is loaded on the reactive chamber of the plasma enhanced cyclic chemical vapor deposition device when the TiC layer is formed. A deposition cycle comprised of a purge step and a feeding step is performed on the substrate 2 to 30 times. In the feeding step, titanium source gas, carbon source gas, and inactive gas are supplied to the reactive chamber.
Abstract:
저온 증착용 금속 전구체, 그를 사용한 금속 박막 형성 방법 및 상변화 메모리 소자 제조 방법을 제공한다. 상기 금속 전구체는 고리를 구성하는 원소들 중 적어도 하나가 금속인 금속 고리화합물이다. 이로써, 금속 박막의 증착 온도를 감소시킬 수 있다. 나아가, 상기 금속 고리화합물을 금속 전구체로 사용함으로써 미세한 비아홀 내에 금속 박막을 보이드 없이 채울 수 있다.
Abstract:
A method for forming a metal thin film using a metal precursor for low temperature deposition is provided to decrease the deposition temperature of a metal thin film by using a metal cyclic compound as a metal precursor. A lower electrode(135) is formed on a substrate(100). A mold insulation layer(140) is formed on the lower electrode. A via hole(140a) is formed in the mold insulation layer, exposing a part of the lower electrode. A metal precursor is supplied to the substrate to fill the via hole with a phase change material layer wherein the metal precursor is a metal cyclic compound in which at least one of elements constituting a cycle is metal. An upper electrode(160) is formed on the phase change material layer.
Abstract:
A method for forming a phase change material layer and a method for manufacturing a phase change memory device are provided to implement excellent junction characteristic with a lower layer and to implement excellent electrical characteristic by using plasma whose hydrogen gas is properly controlled. Hydrogen gas of a first flux is introduced into a reactive chamber where a substrate(10) is loaded to form a first plasma. A cyclic chemical vapor deposition process using first, second, and third precursors is performed in the chamber where the first plasma is formed to form a lower phase change material layer(20) on the substrate. The lower phase change material layer has a first dimension of grain. Hydrogen gas of a third flux smaller than the first flux is introduced into the chamber to form a second plasma. A cyclic chemical vapor deposition process using first, second, and third precursors is performed in the chamber where the second plasma is formed to form an upper phase change material layer(30) on the substrate. The upper phase change material layer has a second dimension of grain smaller than the first dimension.