Abstract:
A polishing method and a polishing apparatus finish a surface of a substrate of a compound semiconductor containing an element such as Ga or the like to a desired level of flatness, so that the surface can be flattened with high surface accuracy within a practical processing time. In the presence of water, such as weak acid water, water with air dissolved therein, or electrolytic ion water, the surface of the substrate made of a compound semiconductor containing either one of Ga, Al, and In and a surface of a polishing pad having an electrically conductive member in an area of the surface which is held in contact with the substrate) are relatively moved while being held in contact with each other, thereby polishing the surface of the substrate.
Abstract:
A heat-sensitive transfer image-receiving sheet, in which the heat-sensitive transfer image-receiving sheet is provided in a form that it is wound into a roll and all periphery of the roll is covered with a protective sheet, and in which the heat-sensitive transfer image-receiving sheet contains, on a support, at least one receptor layer containing a latex polymer, and at least one heat-insulating layer containing hollow polymer particles.
Abstract:
A polishing method can process and flatten, in a practical processing time and with high surface accuracy, a surface of a substrate of a Ga element-containing compound semiconductor. The polishing method includes: bringing a Ga element-containing compound semiconductor substrate (16) into contact with a polishing tool (10) in the presence of a processing solution (14) comprising a neutral pH buffer solution containing Ga ions; irradiating a surface of the substrate with light or applying a bias potential to the substrate, or applying a bias potential to the substrate while irradiating the surface of the substrate with light, thereby forming Ga oxide (16a) on the surface of the substrate; and simultaneously moving the substrate and the polishing tool relative to each other to polish and remove the Ga oxide formed on the surface of the substrate.
Abstract:
A heat-sensitive transfer image-receiving sheet, containing, on a support, at least one dye-receptive layer containing latex polymer and at least one heat-insulating layer, at least said receptive layer and a layer adjacent thereto being formed by a water-based simultaneous multilayer coating method, wherein said sheet contains at least one solid dispersion having an average particle diameter of 1.0 g μm or less of at least one material selected from a compound represented by formula (L1) and wax: wherein R01 represents —C(═O)R or a hydrogen atom, in which R represents an aliphatic group which may have a substituent, and a plurality of Rol 's are the same as or different from each other, but at least one of R01's is —C(═O)R; and n represents 0 or 1.
Abstract translation:一种热敏转印图像接受片,其在载体上含有至少一个含有胶乳聚合物和至少一个绝热层的染料接受层,至少所述接收层和与其相邻的层由水形成 的同时多层涂布方法,其中所述片材含有平均粒径为1.0g或更少的至少一种选自式(L1)表示的化合物和蜡的至少一种固体分散体:其中R 1, 01表示-C(-O)R或氢原子,其中R表示可以具有取代基的脂肪族基团,多个Rol's彼此相同或不同,但在 R 01中的至少一个是-C(-O)R; n表示0或1。
Abstract:
A silver halide photographic light-sensitive material is described containing at least one electron-donative, silver halide-adsorptive compound represented by the following general formula (A) or (B), which is not a spectral sensitizing agent for silver halide or a nucleating agent:D--L--X (A)D--X (B)wherein D represents an electron donative atomic group comprising an aromatic ring or hetero ring, which may be unsubstituted or substituted with at least one substituent; L represents a linkage group containing at least one of C, N, S or O; and X represents a group which is adsorptive with a silver halide-adsorptive group containing at least one of C, N, S, O or Se, said N being optionally quarternized.
Abstract:
A polishing method and a polishing apparatus particularly suitable for finishing a surface of a substrate of a compound semiconductor containing an element such as Ga or the like to a desired level of flatness, so that a surface of a substrate of a compound semiconductor containing an element of Ga can be flattened with high surface accuracy within a practical processing time. In the presence of water (232) such as weak acid water, water with air dissolved therein, or electrolytic ion water, a surface of a substrate (142) made of a compound semiconductor containing either one of Ga, Al, and In and the surface of a polishing pad (242) having an electrically conductive member (264) in an area of the surface which is held in contact with the substrate (142) are relatively moved while being held in contact with each other, thereby polishing the surface of the substrate (142).
Abstract:
A catalyst-aided chemical processing method is a novel processing method having a high processing efficiency and suited for processing in a space wavelength range of not less than several tens of μm. The catalyst-aided chemical processing method comprises: immersing a workpiece in a processing solution in which a halogen-containing molecule is dissolved, said workpiece normally being insoluble in said processing solution; and bringing a platinum, gold or ceramic solid catalyst close to or into contact with a processing surface of the workpiece, thereby processing the workpiece through dissolution in the processing solution of a halogenide produced by chemical reaction between a halogen radical generated at the surface of the catalyst and a surface atom of the workpiece.
Abstract:
A catalyst-aided chemical processing method is a novel processing method having a high processing efficiency and suited for processing in a space wavelength range of not less than several tens of μm. The catalyst-aided chemical processing method comprises: immersing a workpiece in a processing solution in which a halogen-containing molecule is dissolved, said workpiece normally being insoluble in said processing solution; and bringing a platinum, gold or ceramic solid catalyst close to or into contact with a processing surface of the workpiece, thereby processing the workpiece through dissolution in the processing solution of a halogenide produced by chemical reaction between a halogen radical generated at the surface of the catalyst and a surface atom of the workpiece.
Abstract:
A polishing method can process and flatten, in a practical processing time and with high surface accuracy, a surface of a substrate of a Ga element-containing compound semiconductor. The polishing method includes: bringing a Ga element-containing compound semiconductor substrate (16) into contact with a polishing tool (10) in the presence of a processing solution (14) comprising a neutral pH buffer solution containing Ga ions; irradiating a surface of the substrate with light or applying a bias potential to the substrate, or applying a bias potential to the substrate while irradiating the surface of the substrate with light, thereby forming Ga oxide (16a) on the surface of the substrate; and simultaneously moving the substrate and the polishing tool relative to each other to polish and remove the Ga oxide formed on the surface of the substrate.
Abstract:
A flattening method, by utilizing the advantages of the CARE method and making up for the disadvantages, can perform removal processing of a surface of a workpiece at a sufficient processing rate and can provide a processed surface having enhanced flatness without leaving damage in the processed surface. A flattening method comprises at least two surface removal steps and at least two cleaning steps, the final surface removal step being a catalyst-referred etching step comprising immersing a workpiece in a processing solution containing at least one of hydrohalic acid, hydrogen peroxide water and ozone water, and bringing a surface of a catalyst platen into contact with or close proximity to a surface to be processed of the workpiece to process the surface, said catalyst platen having in a surface a catalyst selected from the group consisting of platinum, gold, a ceramic solid catalyst, a transition metal, glass, and an acidic or basic solid catalyst.