摘要:
In a method of manufacturing a semiconductor device for planarizing a silicon oxide film with chemical mechanical polishing using a silicon film formed on a semiconductor substrate as a stopper film, a surface modification film for hydrophilizing the surface of the silicon film is formed on an upper layer of the polysilicon film, and slurry for the chemical mechanical polishing contains cerium oxide particles, a surface active agent, and resin particles having a cationic or anionic functional group.
摘要:
In a method of manufacturing a semiconductor device for planarizing a silicon oxide film with chemical mechanical polishing using a silicon film formed on a semiconductor substrate as a stopper film, a surface modification film for hydrophilizing the surface of the silicon film is formed on an upper layer of the polysilicon film, and slurry for the chemical mechanical polishing contains cerium oxide particles, a surface active agent, and resin particles having a cationic or anionic functional group.
摘要:
Disclosed is a method of manufacturing a semiconductor device comprising forming an insulating film above a substrate, forming a recess in the insulating film, successively forming an underlying layer, an immediate layer and a resist film above the insulating film having the recess formed thereon, the underlying layer being formed by a process comprising forming a first organic film above the insulating film, chemically mechanically polishing the first organic film to expose a surface of the insulating film and to remain the first organic film selectively in the recess, and forming a second organic film above the insulating film and above the first organic film, and subjecting the resist film to patterning exposure.
摘要:
Disclosed is a method of manufacturing a semiconductor device comprising forming an insulating film above a substrate, forming a recess in the insulating film, successively forming an underlying layer, an immediate layer and a resist film above the insulating film having the recess formed thereon, the underlying layer being formed by a process comprising forming a first organic film above the insulating film, chemically mechanically polishing the first organic film to expose a surface of the insulating film and to remain the first organic film selectively in the recess, and forming a second organic film above the insulating film and above the first organic film, and subjecting the resist film to patterning exposure.
摘要:
According to one embodiment, a semiconductor device includes a switch element provided in a surface area of a semiconductor substrate, a contact plug with an upper surface and a lower surface, and a function element provided on the upper surface of the contact plug. The lower surface of the contact plug is connected to the switch element. The upper surface of the contact plug has a maximum roughness of 0.2 nm or less.
摘要:
According to one embodiment, a semiconductor device manufacturing method is disclosed. The method can include polishing a film on a semiconductor substrate by pressing the film against a polishing pad. Polishing the film comprises performing first polishing in which an entrance temperature of the polishing pad is adjusted to 40° C. (inclusive) to 50° C. (inclusive), and an exit temperature of the polishing pad is adjusted to be higher by 5° C. or more than the entrance temperature. Polishing the film comprises performing second polishing in which the entrance temperature is adjusted to 30° C. or less, and the exit temperature is adjusted to be higher by 5° C. or more than the entrance temperature.
摘要:
According to one embodiment, a semiconductor device manufacturing method is disclosed. The method can include polishing a film on a semiconductor substrate by pressing the film against a polishing pad. Polishing the film comprises performing first polishing in which an entrance temperature of the polishing pad is adjusted to 40° C. (inclusive) to 50° C. (inclusive), and an exit temperature of the polishing pad is adjusted to be higher by 5° C. or more than the entrance temperature. Polishing the film comprises performing second polishing in which the entrance temperature is adjusted to 30° C. or less, and the exit temperature is adjusted to be higher by 5° C. or more than the entrance temperature.
摘要:
According to one embodiment, a CMP method includes starting a polishing of a silicon oxide film by using a slurry including a silicon oxide abrasive and a polishing stopper film including a silicon nitride film, and stopping the polishing when the polishing stopper is exposed. The slurry includes a first water-soluble polymer with a weight-average molecular weight of 50000 or more and 5000000 or less, and a second water-soluble polymer with a weight-average molecular weight of 1000 or more and 10000 or less.
摘要:
According to one embodiment, the CMP slurry includes abrasive particles made of colloidal silica in an amount of 0.5 to 3% by mass of a total mass of the CMP slurry, and a polycarboxylic acid having a weight average molecular weight of from 500 to 10,000, in an amount of 0.1 to 1% by mass of the total mass of the CMP slurry. 50 to 90% by mass of the abrasive particles each has a primary particle diameter of 3 to 10 nm. The CMP slurry has a pH within a range of 2.5 to 4.5.
摘要:
According to one embodiment, a method of manufacturing a semiconductor device is provided. In the method, a groove is formed in a insulating film on a semiconductor substrate. An underlayer film is formed on the insulating film. A metal film is formed on the underlayer film. First polishing, in which the metal film is removed, is performed by supplying a first CMP slurry containing metal ions. The surfaces of the polishing pad and the semiconductor substrate are cleaned by supplying organic acid and pure water. Second polishing, in which the underlayer film is removed from the portion other than the groove, is performed by supplying a second CMP slurry different from the first CMP slurry.