摘要:
In order to provide a flexible laminate circuit board using a surface treated copper foil satisfying all of a bonding strength of a copper foil with respect to polyimide, acid resistance, and etching property, in a flexible laminate circuit board formed by a copper foil on the surface of a polyimide resin layer, the copper foil is a surface treated copper foil formed by depositing an Ni-Zn alloy onto at least one surface of a untreated copper foil, and the Zn deposition amount in the deposited Ni-Zn alloy is 6% or more and 15% or less of the (Ni deposition amount + Zn deposition amount), and the Zn deposition amount is 0.08 mg/dm 2 or more to provide a flexible cupper clad laminate.
摘要:
Provided is an industrially excellent surface-treated copper foil which satisfies requirements for adhesiveness to an insulating resin such as polyimide, heat-resistant adhesiveness, chemical resistance and soft etching properties. Also provided is a method for producing a surface-treated copper foil which achieves a high adhesion strength between an insulating resin and the copper foil, shows high chemical resistance in circuit formation and sustains good soft etching properties after forming vias by laser-processing. A base copper foil is subjected to a roughening treatment to give a surface roughness (Rz) of 1.1 µm or below. On the roughened surface, an Ni-Zn alloy layer is formed. The aforesaid roughening treatment is conducted in such a manner that the roughened surface comprises sharp-pointed convexes, which have a width of 0.3-0.8 µm, a height of 0.6-1.8 µm and an aspect ratio of 1.2-3.5, and the surface roughness (Rz) of said base copper foil is increased by 0.05-0.3 µm. The aforesaid Ni-Zn alloy layer has a Zn content of 6-30 wt% and a Zn deposition amount of 0.08 mg/dm 2 or more.
摘要:
A silver-coated composite material for movable contact 100 includes a base material 110 composed of an alloy whose main component is iron or nickel, an under layer 120 which is formed at least on part of the surface of the base material and which is composed of any one of nickel, cobalt, nickel alloy and cobalt alloy, an intermediate layer 130 which is formed on the under layer and which is composed of copper or copper alloy and an outermost layer 140 which is formed on the intermediate layer and which is composed of silver or silver alloy, and is characterized in that a total thickness of the under layer 120 and the intermediate layer 130 falls within a range more than 0.025 µm and less than 0.20 µm.
摘要:
The invention has as its object to provide an ultra-thin copper foil with a carrier which suppresses occurrence of blistering and is stable in peeling strength, in particular provides an ultra-thin copper foil with a carrier enabling easy peeling of a carrier foil from an ultra-thin copper foil even under a high temperature environment. As means for that, there is provided an ultra-thin copper foil with a carrier comprised of a carrier foil, a release layer, and a copper foil, wherein the release layer is formed by a first release layer disposed on the carrier foil side and a second release layer disposed on the ultra-thin copper foil side, there is a first interface between the carrier foil and the first release layer, a second interface between the ultra-thin copper foil and the second release layer, and a third interface between the first release layer and the second release layer, and the peeling strengths at the interfaces are first interface > third interface, and second interface > third interface.
摘要:
To provide a surface treated copper foil satisfying all of the bonding strength to polyimide film, chemical resistance, and etching property, and to provide a CCL using the surface treated copper foil, a surface treated copper foil is formed being comprising an untreated copper foil on at least one surface of which Ni-Zn alloy is deposited, wherein Zn content (wt%) = Zn deposition amount/(Ni deposition amount + Zn deposition amount) x 100 is 6% or more and 15% or less, and Zn deposition amount is 0.08 mg/dm 2 or more, or, a CCL is formed being comprising a surface treated copper foil and a polyimide film laminated on the surface treated copper foil, wherein the surface treated copper foil comprises an untreated copper foil on at least one surface of which Ni-Zn alloy is deposited, Zn content (wt%) = Zn deposition amount/(Ni deposition amount + Zn deposition amount) x 100 is 6% or more and 15% or less, and Zn deposition amount is 0.08 mg/dm 2 or more.
摘要:
A connector including a male terminal and a female terminal, at least the contact point part of at least one of the terminals having an outermost layer made of a metallic material which is a Cu-Sn alloy layer in which the copper concentration gradually decreases toward the surface. Also provided is a metallic material which is for use in this connector and includes an outermost layer constituted of a Cu-Sn alloy layer in which the copper concentration gradually decreases toward the surface.
摘要:
Provided is a roughened copper foil which has excellent properties in forming a fine patterned-circuit and good transmission properties in a high-frequency range and show high adhesiveness to a resin base and good chemical resistance. A surface-roughened copper foil, which is obtained by roughening at least one face of a base copper foil (untreated copper foil) so as to increase the surface roughness (Rz) thereof, relative to the surface roughness (Rz) of said base copper foil, by 0.05-0.3 µm and has a roughened surface with a surface roughness (Rz) after roughening of 1.1 µm or less, wherein said roughened surface comprises roughed grains in a sharp-pointed convex shape which have a width of 0.3-0.8 µm, a height of 0.4-1.8 µm and an aspect ratio [height/width] of 1.2-3.5.
摘要:
An copper alloy strip material for electrical/electronic components according to the present invention is characterized in that such the copper alloy strip material for electrical/electronic components includes: Ni as between 1.5 mass% and 4.0 mass%; Si as between 0.3 mass% and 1.5 mass%; and the balance being Cu and unavoidable impurities, wherein a mean roughness Ra of a surface roughness is not larger than 0.3 µm regarding the strip in a direction as right angle to a direction of a rolling therefor, a maximum height Ry thereof is not higher than 3.0 µm regarding the same therein, and there is positioned a peak position regarding a frequency curve, that represents a concave component of the surface roughness and/or a convex component thereof, at the plus side (the side for the convex component) comparing to an average value of the curve for meaning the surface roughness.