摘要:
The invention has for its object the provision of a cleaner capable of removing particles and metal impurities present on the surface of a wafer without corrosion of wirings, gates or the like yet at normal temperature in a short period of time and with a one-pack type solution. To accomplish the above object, the invention provides a cleaner that is an aqueous solution containing phosphoric acid, hydrofluoric acid, and ammonia and/or amine, and having a pH ranging from 2 to 12, wherein the aqueous solution comprises 0.5 to 25 mass% of phosphoric acid, 0.1 to 10 mass% of ammonia and/or amine, and 5×10 -3 to 5.0 mass% of hydrofluoric acid.
摘要:
Halogen free non-dripping flame retardant polyamide composition comprising 100 weight parts of the mixture of 95-70 weight parts of aliphatic crystalline polyamide and 5-30 weight parts of semi-aromatic amorphous polyamide, 5-15 weight parts of flame retardant, 0-100 weight parts of glass fiber, 0-400 weight parts of high density filler, or 100 weight parts of the mixture of 60-90 weight parts of aliphatic crystalline polyamide, 5-20 weight parts of semi-aromatic amorphous polyamide and 5-20 weight parts of phenolic resin, 5-15 weight parts of red phosphorus, 0-100 weight parts of glass fiber, 0-400 weight parts of high density filler.
摘要:
This invention provides a polymer thin film which is useful as a substrate for immobilizing a histocompatibility-imparting agent, an immunosuppressive agent, a bioreaction suppressive agent, or the like, and which can be used in imparting biocompatibility; its production method; a binder for a bio chip wherein loss of probe and sample substances in the washing step has been reduced to realize efficient use of such probe and sample; and its production method. In the present invention, the starting material represented by the following structural formula (I) is evaporated and heated to bring the material into monomer form. The material is then introduced into a vacuum deposition chamber maintained at a predetermined degree of vacuum wherein the material is deposited and polymerized on a substrate to obtain the polymer thin film. This polymer thin film is also used in producing the bio chip. wherein R 11 and R 12 independently represent -CH 2 NH 2 group or H, and at least one of the R 11 and R 12 is -CH 2 NH 2 group.
摘要:
Polyamide composition comprising 70-95 weight % of aliphatic polyamide, 5-30 weight % of phenolic resin, and 0-20 % of semi-aromatic amorphous polyamide, and further high density polyamide composition comprising 100 parts by weight of the mixture of 60-95 parts by weight of aliphatic crystalline polyamide, 5-30 parts by weight of phenolic resin, and 200-1000 parts by weight of metal powder or metal oxide powder or inorganic filler having specific gravity of more than 2.6.
摘要:
Portions of a thermoplastic synthetic resin panel (B) formed by extrusion and integrally having a first sheet (2a), a second sheet (2b) parallel to the first sheet (2a), and a plurality of ribs (3) integrally joining the first and second sheets (2a, 2b) are welded together by ultrasonic welding by applying an ultrasonic welding head (6) and a work support block (7) of an ultrasonic welding machine to the first sheet (2a) and the second sheet (2b), respectively, and compressing the portions of the thermoplastic synthetic resin panel (B) between the ultrasonic welding head (6) and the work support block (7). When welding together two thermoplastic synthetic resin panels (B1, B2), at least portions of the panels (B1, B2) are put one on top of the other to form an overlapping section, an head (6C) and a work support block (7C) are applied to the opposite surfaces of the overlapping section, respectively, and the head (6C) is driven to generate ultrasonic waves, compressing the overlapping section between the ultrasonic welding head (6C) and the work support block (7C). The overlapping section vibrates, generates frictional heat therein, and is welded under compression.
摘要:
In manufacturing glass fiber-reinforced resin moldings, it is important to uniformly disperse glass fibers in a resin. However, if the resin and glass fiber are strongly kneaded for the above purpose, the glass fibers may be finely cut, causing a problem that the reinforcing function of the glass fibers becomes insufficient. According to the present invention, a peroxide is mixed into a molding material prepared by mixing glass fibers with a thermoplastic resin, and such a molding material is molded. For example, the peroxide is fed together with the molding material in an injection molding machine, the molding material is heated and kneaded in the molding machine, and the glass fiber mixed molten resin is injected into a mold to obtain a molded body.