Cuptronic

Cuptronic AB is a Swedish development company working with new processes for HDI PWB.

Cuptronic AB is a Swedish development company working with new processes for HDI PWB:s. Focus is on a SBU process developed in co-operation with KTH - Royal Institute of Technology, Luleå Technical University and Umeå University. The process which currently is employed in pilot production of PWB:s utilizes a patented method for copper deposition. This allows very high packing density, limited only by the lithographic method of pattern definition. Since copper is chemically bonded to the surface it also gives high adhesion strength of the layer to the surface, enhancing PCB reliability. The process works with halogen-free substrates and since it is a build-up technology it greatly reduces the use of etching chemicals. The technology can be used either as a semi- or full addditive process. In the latter case copper etching is totally eliminated.