In order to produce said bonding or superfine wire, a copper wire is coated with gold or a copper-gold alloy or gold is introduced into the surface of the copper wire.

The spark intensifier has a copper wire with a predetermined length.

A method and apparatus are disclosed for producing copper wire by electrolytically engrossing a copper starting wire (13).

Provided is a wire that can have alternating current resistance equal to copper wire or lower than copper wire and can make for easy design.

Then, one of the insulating wires (6) is removed to form a copper wire (9) in the vacant portion by copper vacuum deposition.

A copper material for plating which comprises a coil constituted of a spirally wound copper wire.

The ground structure (14) comprises a copper yarn arranged in parallel lines.

The copper wire can be drawn to any desired thickness, but is particularly suitable for making ultra thin copper wire.

A system and method for a thin multi chip stack package with film on wire and copper wire.

The first and second paper-covered copper wires (5A, 5B) comprise copper wire and insulating paper wrapped therearound.

Wire (20) can be formed from litz wire, multi-stranded wire or solid copper wire.

A hygienic mattress has an inlay consisting of copper-plated springs each wound in copper wire.

A wire harness (1) is provided with a copper wire (3), an aluminum wire (4), and a ground terminal (2) to which the copper and aluminum wires are connected.

Provided are: an etching solution which can minimize side etching without impairing the straightness of copper wiring; a replenishing solution for the same; and a method for forming copper wiring.

The present invention provides a copper wire rod softening device which can stably soften a copper wire over a broad range from low speed area to high speed area.