Abstract:
pre-coating films are formed in a pretreatment by supplying first film-forming gases into a process chamber (20) of a process vessel (18) while heating the process chamber so as to form a first pre-coating film on the inner surface of the process vessel exposed to the process chamber, followed by supplying second film-forming gases into the process chamber to form a second pre-coating film on the first pre-coating film. A semiconductor wafer (W) is loaded into the process chamber. Then, the first gases is supplied into the process chamber while heating the process chamber so as to form a first layer on the wafer, followed by supplying the second gases into the process chamber so as to form a second layer on the first layer. A silane gas is supplied into the process chamber to permit silicon material to be deposited on the surface of the second layer stacked on the first layer. Finally, the wafer having the first and second multi-film is unloaded out of the process vessel.
Abstract:
SiO 2 용량 환산 막두께가 1.45㎚ 이하인 하프늄 실리케이트계 재료로 이루어지는 게이트 절연막(4)을 실리콘 기판(1) 상에 형성하는 방법이 개시된다. 이 방법은, 실리콘 기판(1)의 표면을 세정하고 실질적으로 산소가 존재하지 않은 청정면으로 하는 공정과, 아미드계 유기 하프늄 화합물과 실리콘 함유 원료를 이용한 CVD 프로세스에 의해, 실리콘 기판(1)의 청정면에 하프늄 실리케이트막(2)을 성막하는 공정과, 하프늄 실리케이트막(2)에 산화 처리를 실시하는 공정과, 산화 처리를 실시한 후의 하프늄 실리케이트막(2)에 질화 처리를 실시하는 공정을 갖는다. 이 방법에 의하면, 막두께가 얇더라도 표면 거칠기가 양호한 게이트 절연막을 얻을 수 있다.
Abstract:
Disclosed is a method for forming a high dielectric film, which comprises a step for forming a high dielectric film on a substrate by ALD or CVD using an organic metal raw material at a temperature not more than 350°C, and a step for eliminating hydrogen in the high dielectric film by irradiating the film with ultraviolet light in an oxygen-containing atmosphere at a low pressure.Also disclosed is a method for manufacturing a semiconductor device, which comprises a step for forming a high dielectric film as a gate insulating film on a semiconductor substrate by ALD or CVD using an organic metal raw material at a temperature not more than 350°C, a step for eliminating hydrogen in the high dielectric film by irradiating the film with ultraviolet light in an oxygen-containing atmosphere at a low pressure, and a step for forming a gate electrode on the high dielectric film.
Abstract:
Disclosed is a film-forming apparatus comprising a process chamber in which a substrate to be processed is held, a first gas supply means for supplying a first gaseous material composed of a metal alkoxide having a tertiary butoxyl group as a ligand into the process chamber, and a second gas supply means for supplying a second gaseous material composed of a silicon alkoxide material into the process chamber. The first gas supply means and the second gas supply means are connected to a preliminary reaction means for causing a preliminary reaction between the first gaseous material and the second gaseous material, and the first and second gaseous materials after the preliminary reaction are supplied into the process chamber.
Abstract:
고주파 플라즈마에 의해 질소 라디칼을 형성하고, 산소를 포함하는 절연막 표면에 상기 질소 라디칼을 공급함으로써 상기 절연막 표면을 질화시킨다. 상기 산소를 포함하는 절연막은 0.4nm 이하의 막 두께를 갖고, 상기 표면이 질화된 질화막 상에 고유전체막이 형성된다. 또한, 상기 질소 라디칼은 상기 절연막의 표면을 따라 흐르도록 형성된 기체의 흐름에 의해 제공된다.
Abstract:
A first tungsten silicide layer relatively rich in silicon is formed on an object by using a process gas having a phosphorus atom-containing gas added thereto, and a second tungsten silicide layer relatively rich in tungsten is formed on the first tungsten silicide layer, so that a tungsten silicide film is formed. The addition amount of the phosphorus atom-containing gas to the process gas is 0.02 to 0.2% by volume "in terms of a phosphine gas".
Abstract:
고주파 플라즈마에 의해 질소 라디칼을 형성하고, 산소를 포함하는 절연막 표면에 상기 질소 라디칼을 공급함으로써 상기 절연막 표면을 질화시킨다. 상기 산소를 포함하는 절연막은 0.4nm 이하의 막 두께를 갖고, 상기 표면이 질화된 질화막 상에 고유전체막이 형성된다. 또한, 상기 질소 라디칼은 상기 절연막의 표면을 따라 흐르도록 형성된 기체의 흐름에 의해 제공된다.
Abstract:
PURPOSE: A methode for forming a tungsten silicide film is provided to arrange a decis ion direction of a tungsten silicide by adding a phosphorous atom-containing gas to a process gas. CONSTITUTION: A methode for forming a tungsten silicide film comprises the steps of: forming a first tungsten silicide layer(5) on an object by using a process gas adding a phosphorus atom-containing gas; and forming a second tungsten silicide layer(6) on the first tungsten silicide layer. The first tungsten silicide layer is formed by using the phosphorous atom-containing gas. The second tungsten silicide layer is formed by not using the phosphorous atom-containing gas, or a little amount of phosphorous atom-containing gas.