摘要:
Disclosed is an etching method of a laminated assembly having a metal layer and a non-thermoplastic polyimide layer bonded together via thermoplastic polyimide, which comprises using an etchant at least containing an alkali metal hydroxide, water and oxyalkylamine, wherein the concentrations of the alkali metal hydroxide (X weight %) and of the water (Y weight %) have relationships represented by coordinate points present within a region (inclusive of boundary lines) defined by the following expressions [1] and [2]: Y=(½)X (provided that 7≦X≦45) [1] Y=({fraction (5/20)})X+17.5 (provided that 7≦X≦45) [2] provided that X and Y are defined based on the total weight of the alkali metal hydroxide, water and oxyalkylamine expressed as 100.
摘要:
A bonding wire comprising a core and a coating layer formed on the core, wherein the coating layer is formed from a metal having a higher melting point than the core, and further has at least one of the following characteristics; 1. the wet contact angle with the coating layer when the core is melted is not smaller than 20 degrees; 2. when the bonding wire is hung down with its end touching a horizontal surface, and is cut at a point 15 cm above the end and thus let drop onto the horizontal surface, the curvature radius of the formed arc is 35 mm or larger; 3. the 0.2% yield strength is not smaller than 0.115 mN/μm2 but not greater than 0.165 mN/μm2; or 4. the Vickers hardness of the coating layer is 300 or lower.
摘要翻译:一种接合线,其包括芯和形成在所述芯上的涂层,其中所述涂层由具有比所述芯更高的熔点的金属形成,并且还具有以下特征中的至少一个; 当芯熔化时与涂层的湿接触角不小于20度; 2.当接合线悬挂时,其端部接触水平表面,并在端部上方15厘米处切割,因此落在水平面上,所形成的弧的曲率半径为35毫米或更大; 0.2%的屈服强度不小于0.115mN / m 2,但不大于0.165mN / m 2。 或4.涂层的维氏硬度为300以下。
摘要:
A bonding wire comprising a core mainly consisting of copper, a different metal layer formed of a metal other than copper and formed on the core, and a coating layer formed of an oxidation-resistant metal having a melting point higher than that of copper and formed on the different metal layer, from which balls having the shape of a true sphere in a wide ball diameter range can be formed stably, which can be produced without causing the deterioration of a plating solution at the time of plating, and in which the adhesiveness between the coating layer and the core thereof is excellent; and an integrated circuit device using the bonding wire are provided.
摘要:
A flame retardant that is arranged to improve the cold resistance and the productivity of a composition, a flame-retardant composition, an insulated wire, a wiring harness, and a method for manufacturing the flame-retardant composition. The flame retardant includes a pulverized natural mineral which is mainly composed of magnesium hydroxide, wherein the pulverized natural mineral is surface-treated with an organic high polymer such as polyolefin. The amount of surface treatment is within a range of 0.1 to 10 mass %. The flame-retardant composition includes 30 to 250 parts by mass of the flame retardant with respect to 100 parts by mass of an organic high polymer such as polyolefin. The insulated wire includes a conductor and the flame-retardant composition which covers the conductor, and the wiring harness includes the insulated wire.
摘要:
A flame-retardant composition that is not colored during compounding and molding, and a covered electric wire using the same. The flame-retardant composition contains at least a matrix polymer such as an olefin resin, a phenolic antioxidant having tert-butyl groups in positions 2 and 6 of a hydroxyl group, and a flame retardant that is a pulverized natural mineral containing magnesium hydroxide as the main ingredient, and the iron oxide concentration in the flame retardant is 1000 ppm or less. The covered electric wire uses the flame-retardant composition as a covering material.
摘要:
A coupler-type optical switch and a process for producing the same are disclosed, which coupler-type optical switch comprises an optical fiber coupler and a medium surrounding the photocoupler part of the optical fiber coupler and in which the refractive index of the medium is controllable, the medium comprising an energy-curing resin or a transparent liquid material and, dispersed or dissolved in the resin or liquid material, an optical material whose refractive index changes by the action of an electric or magnetic field.
摘要:
Provided are a flame retardant, a flame-retardant resin composition and an insulated wire that have favorable low-temperature characteristics, excellent cold resistance and high productivity. The insulated wire includes a conductor that is insulation-coated with the flame-retardant resin composition that contains the flame retardant that contains magnesium hydroxide and a surface treatment agent with which the magnesium hydroxide is surface-treated, wherein the surface treatment agent has a weight-average molecular weight of 10000 or less, and at least a base resin.
摘要:
Provided is an insulated wire that is capable of reducing loads to the environment by containing a renewable biomass resource, and has excellent water resistance even if containing the biomass resource. The insulated wire includes a conductor, and an insulator that coats the perimeter of the conductor, wherein the insulator is made from a resin composition that contains a biodegradable resin having a repeating unit structure represented by the following general formula (1), and a repeating unit structure represented by the following general formula (2); wherein each of R1 and R2 represents an alkyl group having one or more carbon atoms, and each of a and b represents a natural number of one or more.
摘要:
Provided are a flame retardant, a flame-retardant resin composition and an insulated wire that have favorable low-temperature characteristics, excellent cold resistance and high productivity. The insulated wire includes a conductor that is insulation-coated with the flame-retardant resin composition that contains the flame retardant that contains magnesium hydroxide and a surface treatment agent with which the magnesium hydroxide is surface-treated, wherein the surface treatment agent has a weight-average molecular weight of 10000 or less, and at least a base resin.
摘要:
An insulated wire including a conductor, an inside coat of one or more layers arranged to cover the conductor, and an outside coat arranged to cover the outermost layer of the inside coat, wherein at least the layer of the inside coat which is in contact with the conductor is made from an olefin resin including a functional group, and the outside coatis made from a non-halogenous flame-retardant resin composition. The functional group is preferably one or more groups selected from a carboxylic acid group, an acid anhydrous group, an epoxy group, a hydroxyl group, an amino group, an alkenyl cyclic imino ether group, and a silane group.