摘要:
The invention describes a process to remove a recast layer and/or burrs from machining processes to provide a surface of a titanium medical device without dissipation of copper or zinc from the surface of the medical device.
摘要:
A method is disclosed of fabricating a mirror for use in limited rotation motor systems, said method comprising the steps of providing a mirror structure including at least one wall section, and exposing the at least one wall section to a fluid etching agent to thereby provide chemical milling of the mirror structure.
摘要:
A method of reproducing the molding die for molding glass, the molding die for molding glass comprising a base material, a first intermediate layer, which is made of titanium or other materials that is not easy to be attacked, on the base material, a protective film, which is made of molybdenum alloy, on the first intermediate layer; the method comprising the steps of attacking the protective film to remove the protective film but keep the first intermediate layer and the base material still, and then coating a new protective layer on the first intermediate layer.
摘要:
The present invention relates to a method for forming self-aligned metal silicide contacts over at least two silicon-containing semiconductor regions that are spaced apart from each other by an exposed dielectric region. Preferably, each of the self-aligned metal silicide contacts so formed comprises at least nickel silicide and platinum silicide with a substantially smooth surface, and the exposed dielectric region is essentially free of metal and metal silicide. More preferably, the method comprises the steps of nickel or nickel alloy deposition, low-temperature annealing, nickel etching, high-temperature annealing, and aqua regia etching.
摘要:
A pattern forming material contains a block copolymer or graft copolymer and forms a structure having micro polymer phases, in which, with respect to at least two polymer chains among polymer chains constituting the block copolymer or graft copolymer, the ratio between N/(Nc−No) values of monomer units constituting respective polymer chains is 1.4 or more, where N represents total number of atoms in the monomer unit, Nc represents the number of carbon atoms in the monomer unit, No represents the number of oxygen atoms in the monomer unit.
摘要:
The removing solution containing a cerium (IV) nitrate salt, periodic acid or a hypochlorite can be applied to metals containing copper, silver or palladium and also to metals containing other metals having a relatively large oxidation-reduction potential.
摘要:
A molding die for molding glass includes a base material, a first intermediate layer on the base material, and a protective film on the first intermediate layer. The first intermediate layer is made of titanium or other materials that is not easy to be attacked, and the protective film is made of molybdenum alloy. A method of reproducing the molding die of the present invention includes removing the protective film but keeping the first intermediate layer and the base material still, and then coating a new protective layer on the first intermediate layer.
摘要:
An etchant for selective etching is used to simplify the production process of a semi-transparent semi-reflective electrode substrate, and temporal loss is not produced by avoiding troublesome repeated works, thereby efficiently providing a semi-transparent semi-reflective electrode substrate. A method for manufacturing a semi-transparent semi-reflective electrode substrate where a metal oxide layer (12) made of at least indium oxide and an inorganic compound layer (14) at least made of Al or Ag are formed in order of mention. The method comprises a step of etching the inorganic compound layer (14) with an etchant X composed of phosphoric acid, nitric acid, and acetic acid and a step of etching the metal oxide layer (12) with an etchant a containing oxalic acid.
摘要:
A metal that can be dissolved in aqua regia or a metal alloy containing a metal that can be dissolved in aqua regia can be effectively removed from a substrate, and particularly a silicon wafer substrate by a method of application of a composition having a HCl (concentrated)/hydrogen peroxide (concentrated) volume ratio of about 1:1 to about 4:1 that is substantially free of added water. In another embodiment, a metal that can be dissolved in aqua regia or a metal alloy containing a metal that can be dissolved in aqua regia is removed from a substrate by a composition comprising HCl (concentrated)/hydrogen peroxide (concentrated)/water in a volume ratio of from about 2:0.5:4 to about 4:2:4. The composition, heated to a temperature of about 60° C. to about 100° C., is applied to a substrate having the metal or metal alloy thereon, which is preferably heated to a temperature of from about 50° C. to about 100° C. The metal or metal alloy preferably is platinum metal or a metal alloy comprising platinum metal, and the substrate is a silicon wafer substrate.