Search results
Results from the WOW.Com Content Network
Copper plating on aluminium. Copper electroplating is the process of electroplating a layer of copper onto the surface of a metal object. Copper is used both as a standalone coating and as an undercoat onto which other metals are subsequently plated. [1]
The primary electrochemical process which occurs during aqueous electrodeposition is the electrolysis of water. This can be shown by the following two half reactions which occur at the two electrodes: Anode: 2H 2 O → O 2 (gas) + 4H(+) + 4e(-) Cathode: 4H 2 O + 4e(-) → 4OH(-) + 2H 2 (gas)
Electroplating, also known as electrochemical deposition or electrodeposition, is a process for producing a metal coating on a solid substrate through the reduction of cations of that metal by means of a direct electric current.
Metal powder production by electrodeposition is included in this category, or sometimes electrowinning, or a separate category depending on application. [2] Electroplating, the deposition of a layer of one metal on another [2] Electroforming, the manufacture of, usually thin, metal parts through electroplating [2]
For the Cu deposition (i.e. an additive manufacturing process), the IBM team in the late 1990’s selected electroplating. This started the ‘copper revolution” in the semiconductor / microchip industry. The copper plating starts with coating the walls of a via with a protective layer (Ta, TaN, SiN or SiC), that prevents Cu diffusion into ...
In electrowinning, an electrical current is passed from an inert anode through a leach solution containing the dissolved metal ions so that the metal is recovered as it is reduced and deposited in an electroplating process onto the cathode. In electrorefining, the anode consists of the impure metal (e.g., copper) to be refined. The impure ...
Electroless deposition is an important process in the electronic industry for metallization of substrates. Other metallization of substrates also include physical vapor deposition (PVD), chemical vapor deposition (CVD), and electroplating which produce thin metal films but require high temperature, vacuum, and a power source respectively. [19]
Copper foil is a thin sheet of copper metal that is widely used in various applications due to its excellent electrical conductivity, malleability, and corrosion resistance. It is an essential material in the electronics industry, especially for manufacturing printed circuit boards (PCBs) and other electronic components.