摘要:
The CMP apparatus including a polishing pad having functional groups charged at an opposite polarity to that of the abrasives in the slurry, on its surface is used, so as to eliminate unnecessary Cu film (Cu wiring) and TaN film (barrier metal film) present outside the damascene wiring, by polishing.
摘要:
According to the present invention, there is provided a polishing apparatus comprising: a rotatable turntable; a polishing cloth attached on said turntable; a slurry supply pipe which supplies a slurry onto said polishing cloth; and a polishing member which presses an object to be polished against a surface of said polishing cloth, wherein said polishing cloth once stores the supplied slurry inside said polishing cloth, and discharges the slurry when pressed by said polishing member, thereby supplying the slurry to the surface of the object.
摘要:
Disclosed is a CMP slurry comprising a Cu oxidizing agent, a complexing agent for forming a Cu organic complex, a surfactant, an inorganic particle, and a resin particle containing polystyrene, having on the surface thereof a functional group of the same kind of polarity as that of the inorganic particle and having an average particle diameter of less than 100 nm, the resin particle being incorporated at a concentration of less than 1% by weight.
摘要:
A method of forming a cap film comprises a first polishing step of performing a polishing operation at selectivity of R1 (=removal rate for the cap film/removal rate for the insulating film), and a second polishing step of performing a polishing operation at selectivity of R2 (=removal rate for the cap film/removal rate for the insulating film). Each of the polishing operations is performed by using a slurry having the condition of R1>R2. By performing the polishing operations at different selectivity, the cap film free from problems such as dishing of the cap film and the residual cap film on side walls of a recess is formed. Consequently, a semiconductor device having an excellent RC characteristic can be provided.
摘要翻译:形成盖膜的方法包括以R 1的选择性(=盖膜的去除速率/绝缘膜的去除速率)进行抛光操作的第一抛光步骤,以及进行抛光操作的第二抛光步骤 R 2的选择性(=盖膜的去除率/绝缘膜的去除率)。 通过使用条件为R 1> R 2的浆料进行每次研磨操作。 通过以不同的选择性进行抛光操作,形成了帽膜没有诸如凹陷的盖膜和残留帽膜之间的问题。 因此,可以提供具有优异RC特性的半导体器件。
摘要:
A semiconductor device comprises a semiconductor substrate, an interlayer insulating film including a first insulating film formed above the substrate and having a relative dielectric constant smaller than 2.5 and a second insulating film formed to cover the first insulating film and having a relative dielectric constant larger than that of the first insulating film, and a buried wiring formed within the interlayer insulating film. A bottom portion of the second insulating film is buried in the first insulating film at a number of points.
摘要:
A slurry for CMP of Cu film is provided, which includes water, peroxosulfuric acid or a salt thereof, basic amino acid, a complexing agent which forms a water-insoluble metal complex, a surfactant, and colloidal silica having a primary diameter ranging from 5 to 50 nm. The basic amino acid is included at a content of 0.05 to 0.5 wt %.
摘要:
A polishing method includes causing a polishing pad arranged on a turn table to rotate together with the turn table, and polishing a surface of a substrate by using the rotating polishing pad while supplying a chemical fluid to a surface of the polishing pad on a fore side of the substrate from an oblique direction with respect to the surface of the polishing pad.
摘要:
A semiconductor device comprises a semiconductor substrate, an interlayer insulating film including a first insulating film formed above the substrate and having a relative dielectric constant smaller than 2.5 and a second insulating film formed to cover the first insulating film and having a relative dielectric constant larger than that of the first insulating film, and a buried wiring formed within the interlayer insulating film. A bottom portion of the second insulating film is buried in the first insulating film at a number of points.
摘要:
A polishing method comprises supplying a polishing liquid to an upper portion of a film to be polished to carry out first polishing, the film being provided on a layer having a groove with a predetermined pattern so as to be filled therewith, after the first polishing, polishing the film to carry out clean polishing while supplying one of distilled water and a cleaning liquid thereto, and after the clean polishing, polishing a residual portion of the film remaining outside of the groove by supplying a polishing liquid to carry out second polishing.
摘要:
A chemical mechanical polishing aqueous dispersion comprises (A) abrasive grains, (B) at least one of quinolinecarboxylic acid and pyridinecarboxylic acid, (C) an organic acid other than quinolinecarboxylic acid and pyridinecarboxylic acid, (D) an oxidizing agent, and (E) a nonionic surfactant having a triple bond, the mass ratio (WB/WC) of the amount (WB) of the component (B) to the amount (WC) of the component (C) being 0.01 or more and less than 2, and the component (E) being shown by the following general formula (1), wherein m and n individually represent integers equal to or larger than one, provided that m+n≦50 is satisfied.
摘要翻译:化学机械研磨用水系分散体包含(A)磨粒,(B)至少一种喹啉羧酸和吡啶羧酸,(C)除喹啉羧酸以外的有机酸和吡啶羧酸,(D)氧化剂,(E )具有三键的非离子表面活性剂,组分(B)的量(WB)与组分(C)的量(WC)的质量比(WB / WC)为0.01以上且小于2, 并且组分(E)由以下通式(1)表示,其中m和n分别表示等于或大于1的整数,条件是满足m + n <= 50。