摘要:
A silicon carbide-silicon carbide fiber composite consists of silicon carbide particles and silicon carbide fibers. The composite has excellent oxidation resistance and finds a wide range of application as heat resistant material. The silicon carbide conversion method is simple and consistent enough to ensure production of silicon carbide-silicon carbide fiber composites with minimized variation in quality.
摘要:
A conductive powder is provided in which particles having silicon crystallites dispersed in a silicon compound are coated on their surface with carbon. The conductive powder develops a diffraction peak assigned to Si(111) around 2θ=28.4° on x-ray diffractometry (Cu—Kα) using copper as the counter cathode, the peak having a half width of at least 1.0°, and has a specific resistance of up to 50 mΩ. The powder is used as a negative electrode material to construct a non-aqueous electrolyte secondary battery, which has a high charge/discharge capacity and improved cycle performance.
摘要:
A separator carries lithium particles on its surface. Using the separator, a non-aqueous electrolyte secondary battery having a high initial efficiency and improved cycle retentivity is available.
摘要:
Disclosed is a method for dust-proofing of a photomask in the photolithographic processing of electronic devices, e.g., LSIs and liquid-crystal display panels, in which the photomask is covered with a pellicle having a frame-supported light-transmitting membrane made from a polyvinyl alcohol modified by silylating the hydroxy groups of the polyvinyl alcohol with triorganosilyl groups of the formula R.sub.3 Si--, in which R is a monovalent hydrocarbon group, e.g., alkyl, in a degree of substitution of at least 40%. The membrane of the pellicle is highly transparent to light of short wavelength in the ultraviolet region and excellently durable under prolonged irradiation with ultraviolet light not to cause yellowing or mechanical breaking.
摘要:
An X-ray permeable membrane for an X-ray lithographic mask consisting of an inorganic thin film obtained by the sputtering method using a target and consisting of silicon carbide and carbon, said target consisting of silicon carbide and carbon in a molar ratio of 99.9:0.1 to 70:30, having a transmission of at least 37% at a light wavelength of 633 nm and a tensile strength of 1.times.10.sup.8 to 1.times.10.sup.10 dyn/cm.sup.2, and the membrane consisting of a silicon carbide constituted form silicon and carbon in a molar ratio in the range form 50.1:49.9 to 49.9:50.1.
摘要翻译:一种用于X射线光刻掩模的X射线透过膜,其由通过使用靶的溅射法由碳化硅和碳组成的无机薄膜组成,所述靶由碳化硅和碳组成,摩尔比为99.9: 0.1至70:30,在633nm的光波长和1×10 8至1×10 10 dyn / cm 2的透光率下具有至少37%的透射率,并且该膜由以硅和碳组成的摩尔比构成的碳膜 范围为50.1:49.9至49.9:50.1。
摘要:
A curable organopolysiloxane composition comprising:(A) an organopolysiloxane having at least two aliphatic unsaturated hydrocarbon groups,(B) a particular organohydrogenpolysiloxane having a group represented by the formula: ##STR1## wherein R.sup.3 is a substituted or unsubstituted monovalent hydrocarbon group and a is an integer of 2 or 3, and(C) a platinum catalyst.This composition has good curing properties, and the silicone film obtained by curing has good release properties which is stable for a long period of time.
摘要:
A separator carries lithium particles on its surface. Using the separator, a non-aqueous electrolyte secondary battery having a high initial efficiency and improved cycle retentivity is available.
摘要:
A carbonate-modified silane or siloxane is combined with a non-aqueous solvent and an electrolyte salt to form a non-aqueous electrolytic solution, which is used to construct a secondary battery having improved charge/discharge characteristics.
摘要:
Proposed is a frame-supported pellicle used for dustproof protection of a photomask in the photolithographic patterning work for the manufacture of electronic fine devices such as LSIs, VLSIs and the like by mounting thereon. The inventive frame-supported pellicle is characterized in that the pellicle frame, to which a pellicle membrane is adhesively bonded on one of the end surfaces, is partly subjected to smoothing treatment. The inventive frame-supported pellicle can solve the heretofore unavoidable problems of dust particle deposition on the photomask even under dustproof protection with a pellicle as well as the high cost of the preparation of the pellicle and the difficulty of finding of any dust particles deposited on the surface of the frame.
摘要:
Disclosed is a frame-supported pellicle for dust-proofing of a photolithographic photomask used for patteriwse light exposure in the manufacturing process of, for example, semiconductor devices, which comprises (a) a frame member, (b) a transparent polymeric film supported by the frame member and (c) a coating layer of a sticky adhesive on one surface of the polymeric film to capture any dust particles in the space between the photomask and the pellicle. The inventive pellicle is imparted with a greatly improved serviceable life with stability against ultraviolet irradiation relative to the adhesive coating layer which is formed from a specific organo-polysiloxane-based adhesive composition.