Copper and copper alloy etching

Superior conductivity of electric current and heat combined with the low cost (compared to e.g. silver) makes copper the metal of choice for many applications in micro-electronics as well as in the printed circuit board sector.

Typical examples of Cu alloys etched by us:

  • CuSn6 (C51900)
  • Cu-PHC (K14, C10300)
  • CuFe2P (K65, C19400)

Other copper alloys such as copper beryllium, brass, bronze and nickel silver can also be etched and are used mainly for their mechanical and electrical properties.

Composite / Clad Material

Composite materials have the advantage of combining the advantages of a wide variety of materials in a tailor-made way. A multitude of combinations, also in several layers and several materials, e.g. SigmaClad ((Ni/stainless steel/Cu/stainless steel/Ni) in different thicknesses and layer thicknesses are possible

Sigmaclad60_Wickeder Westfalenstahl

A composite of stainless steel and copper combines the conductivity of copper with the strength of steel.

Advantages of etchable clad material (stainless steel - copper):

  • Strength increase compared to copper
  • Lower specific weight than copper
  • Ferromagnetic properties
  • Improved electrical conductivity
  • Improved thermal conductivity
  • Improved solderability
  • Improved corrosion protection
  • Decorative appearance

Typical applications for copper and copper claddings:

  • Filters, screens, grids, springs, joints and membranes
  • Interior trim for automobiles
  • EMI/RFI shielding
  • Microneedles, blades, lancets, surgical instruments
  • Interior equipment for cars
  • Fuel cell plates, bipolar plates,...