摘要:
According to one embodiment, a nonvolatile semiconductor memory device includes a semiconductor region, a tunnel insulator provided above the semiconductor region, a charge storage insulator provided above the tunnel insulator, a block insulator provided above the charge storage insulator, a control gate electrode provided above the block insulator, and an interface region including a metal element, the interface region being provided at one interface selected from between the semiconductor region and the tunnel insulator, the tunnel insulator and the charge storage insulator, the charge storage insulator and the block insulator, and the block insulator and the control gate electrode.
摘要:
According to one embodiment, a nonvolatile semiconductor memory device includes a semiconductor region, a tunnel insulator provided above the semiconductor region, a charge storage insulator provided above the tunnel insulator, a block insulator provided above the charge storage insulator, a control gate electrode provided above the block insulator, and an interface region including a metal element, the interface region being provided at one interface selected from between the semiconductor region and the tunnel insulator, the tunnel insulator and the charge storage insulator, the charge storage insulator and the block insulator, and the block insulator and the control gate electrode.
摘要:
According to one embodiment, a method for forming a semiconductor device includes: forming a first underlayer film that contains a first chemical element selected from the group consisting of germanium, aluminum, tungsten, hafnium, titanium, tantalum, nickel, cobalt and alkaline earth metals; forming, on the first underlayer film, a second underlayer film that contains a second chemical element selected from the group consisting of germanium, aluminum, tungsten, hafnium, titanium, tantalum, nickel, cobalt and alkaline earth metals, the second chemical element being an chemical element not contained in the first underlayer film; and forming, on the second underlayer film, a silicon oxide film by a CVD or ALD method by use of a silicon source containing at least one of an ethoxy group, a halogen group, an alkyl group, and an amino group, or a silicon source of a siloxane system.
摘要:
According to one embodiment, a method for forming a semiconductor device includes: forming a first underlayer film that contains a first atom selected from the group consisting of germanium, aluminum, tungsten, hafnium, titanium, tantalum, nickel, cobalt and alkaline earth metals; forming, on the first underlayer film, a second underlayer film that contains a second atom selected from the group consisting of germanium, aluminum, tungsten, hafnium, titanium, tantalum, nickel, cobalt and alkaline earth metals, the second atom being an atom not contained in the first underlayer film; and forming, on the second underlayer film, a silicon oxide film by a CVD or ALD method by use of a silicon source containing at least one of an ethoxy group, a halogen group, an alkyl group, and an amino group, or a silicon source of a siloxane system.
摘要:
According to one embodiment, a method for manufacturing a semiconductor device includes: forming an underlayer film that contains atoms selected from the group consisting of aluminum, boron and alkaline earth metal; and forming a silicon oxide film on the underlayer film by a CVD method or an ALD method by use of a silicon source containing at least one of an ethoxy group, a halogen group, an alkyl group and an amino group, or a silicon source of a siloxane system.
摘要:
According to one embodiment, a method for manufacturing a semiconductor device includes: forming an underlayer film that contains atoms selected from the group consisting of aluminum, boron and alkaline earth metal; and forming a silicon oxide film on the underlayer film by a CVD method or an ALD method by use of a silicon source containing at least one of an ethoxy group, a halogen group, an alkyl group and an amino group, or a silicon source of a siloxane system.
摘要:
In a manufacturing process of a semiconductor device by forming a structure film on a substrate in a reaction chamber of a manufacturing apparatus, cleaning inside the reaction chamber is performed. That is, a precoat film made of a silicon nitride film containing boron is deposited on an inner wall of the reaction chamber, a silicon nitride film not containing boron is formed as the structure film on the substrate in the reaction chamber, and the inner wall of the reaction chamber is dry etched to be cleaned. At this time, the dry etching is terminated after boron is detected in a gas exhausted from the reaction chamber.
摘要:
In a manufacturing process of a semiconductor device by forming a structure film on a substrate in a reaction chamber of a manufacturing apparatus, cleaning inside the reaction chamber is performed. That is, a precoat film made of a silicon nitride film containing boron is deposited on an inner wall of the reaction chamber, a silicon nitride film not containing boron is formed as the structure film on the substrate in the reaction chamber, and the inner wall of the reaction chamber is dry etched to be cleaned. At this time, the dry etching is terminated after boron is detected in a gas exhausted from the reaction chamber.
摘要:
In one embodiment, a method of cleaning a semiconductor manufacturing apparatus includes supplying a cleaning gas for removing a deposition film deposited on an inside wall of a treatment chamber through a supply pipe of the treatment chamber so that a supply amount of the cleaning gas from the supply pipe per unit time is greater than an exhaust amount of the cleaning gas from an exhaust pipe of the treatment chamber per unit time. The method further includes supplying an inert gas to fill the supply pipe with the inert gas.
摘要:
In one embodiment, a method of cleaning a semiconductor manufacturing apparatus includes supplying a cleaning gas for removing a deposition film deposited on an inside wall of a treatment chamber through a supply pipe of the treatment chamber so that a supply amount of the cleaning gas from the supply pipe per unit time is greater than an exhaust amount of the cleaning gas from an exhaust pipe of the treatment chamber per unit time. The method further includes supplying an inert gas to fill the supply pipe with the inert gas.