Abstract:
The present invention provides a polishing liquid for polishing a ruthenium-containing barrier layer, the polishing liquid being used in chemical mechanical polishing for a semi-conductor device having a ruthenium-containing barrier layer and conductive metal wiring lines on a surface thereof, the polishing liquid comprising an oxidizing agent; and a polishing particulate having hardness of 5 or higher on the Mohs scale and having a composition in which a main component is other than silicon dioxide (SiO2). The present invention also provides a polishing method for chemical mechanical polishing of a semi-conductor device, the method contacting the polishing liquid with the surface of a substrate to be polished, and polishing the surface to be polished such that contacting pressure from a polishing pad to the surface to be polished is from 0.69 kPa to 20.68 kPa.
Abstract:
The invention provides a polishing liquid for polishing a barrier layer of a semiconductor integrated circuit, the polishing liquid comprising: a diquaternary ammonium cation; a corrosion inhibiting agent; and a colloidal silica, wherein the pH of the polishing liquid is in the range of 2.5 to 5.0. According to the invention, a polishing liquid capable of achieving a superior barrier layer polishing rate, as well as suppressing the occurrence of scratching due to the agglomeration of solid abrasive grains can be provided.
Abstract:
A multi-agent type cleaning kit for applying to semiconductor substrates, which contains a foaming agent having an alkylene carbonate and a carbonic acid salt, a foaming aid having an acidic compound, and an oxidizing agent; at least the foaming agent is mixed with the foaming aid upon using for the cleaning of a semiconductor substrate, in combination with the oxidizing agent.
Abstract:
A silicon nitride polishing liquid for chemical mechanical polishing of a body to be polished in a planarization process for manufacturing of a semiconductor integrated circuit, the body to be polished including at least a first layer containing silicon nitride and a second layer containing at least one silicon-including material selected from the group consisting of polysilicon, modified polysilicon, silicon oxide, silicon carbide, and silicon oxycarbide, the silicon nitride polishing liquid having a pH of 2.5 to 5.0, and including (a) colloidal silica, (b) an organic acid that has at least one sulfonic acid group or phosphonic acid group in the molecular structure thereof and functions as a polishing accelerator for silicon nitride, and (c) water.
Abstract:
A polishing slurry used in chemical mechanical polishing of a barrier layer and an interlayer dielectric film in a semiconductor integrated circuit includes an abrasive, an oxidizer, an anticorrosive, an acid, a surfactant and an inclusion compound. The polishing slurry has a pH of less than 5. The resulting polishing slurry contains a solid abrasive used in barrier CMP for polishing a barrier layer made of a metallic barrier material, has excellent storage stability, achieves a good polishing rate in various films to be polished such as the barrier layer, and is capable of independently controlling the polishing rate with respect to the various films to be polished while further suppressing agglomeration of the abrasive particles.
Abstract:
A polishing liquid for a chemical mechanical polishing of a semiconductor device includes (a) a carboxylic acid compound having one or more carboxy groups, (b) colloidal silica particles having a ζ potential of −10 mV to −35 mV when used in the polishing liquid, (c) a benzotriazole derivative, (d) an anionic surfactant, and (e) an oxidizing agent, and the polishing liquid has a pH of from 5.0 to 8.0.
Abstract:
A silicon nitride polishing liquid for chemical mechanical polishing of a body to be polished in a planarization process for manufacturing of a semiconductor integrated circuit, the body to be polished including at least a first layer containing silicon nitride and a second layer containing at least one silicon-including material selected from the group consisting of polysilicon, modified polysilicon, silicon oxide, silicon carbide, and silicon oxycarbide, the silicon nitride polishing liquid having a pH of 2.5 to 5.0, and including (a) colloidal silica, (b) an organic acid that has at least one sulfonic acid group or phosphonic acid group in the molecular structure thereof and functions as a polishing accelerator for silicon nitride, and (c) water.
Abstract:
A polishing slurry used in chemical mechanical polishing of a barrier layer and an interlayer dielectric film in a semiconductor integrated circuit includes an abrasive, an oxidizer, an anticorrosive, an acid, a surfactant and an inclusion compound. The polishing slurry has a pH of less than 5. The resulting polishing slurry contains a solid abrasive used in barrier CMP for polishing a barrier layer made of a metallic barrier material, has excellent storage stability, achieves a good polishing rate in various films to be polished such as the barrier layer, and is capable of independently controlling the polishing rate with respect to the various films to be polished while further suppressing agglomeration of the abrasive particles.
Abstract:
A polishing liquid which is used for chemical mechanical polishing of a body to be polished in a planarization process for manufacturing of a semiconductor integrated circuit, the body to be polished including at least a first layer containing polysilicon or modified polysilicon and a second layer containing at least one selected from the group consisting of silicon oxide, silicon nitride, silicon carbide, silicon carbonitride, silicon oxycarbide, and silicon oxynitride, the polishing liquid having a pH of 1.5 to 7.0, including (1) colloidal silica particles, (2) an organic acid, and (3) an anionic surfactant, and being capable of selectively polishing the second layer with respect to the first layer.
Abstract:
Disclosed are devices capable of performing a massage and wash on a scalp or massage on an affected area gently and effectively by a brush section or a treating section thereof. A plurality of projections are integrally formed on a surface of a flexible body plate of brush section, so that the projections are symmetrical with respect to an axis line A and an axis line D of the projection is perpendicular with the surface of the body plate. An edge of the body plate is fixed on a frame. A motor serving as a drive section is activated allowing a reciprocating drive means to repeatedly deform the body plate coupled thereto between an upwardly-deflected curved concave position and a downwardly-deflected curved convex position along the axis line A, thereby allowing each distance among a plurality of the projections to open and close-repeatedly to provide an repetitive action of kneading and pushing/stretching the scalp. Accordingly, the scalp massage and the scalp and hair wash are achieved.