NCVM decoration film

Technology briefing

The abbreviation of VM means Vacuum melalization which is using  vapor deposition or sputtering (Sputtering) process to deposit the metal on the top of substrate.

NCVM (Non-conductive vacuum matalization) refers to non-conductive vacuum metal coating, which is used for surface decoration of 3C products that require a metallic texture without interfere with RF signals. NMVM is a non-metallic vacuum coating, that is, a metal-like film layer is plated with non-metallic materials, and its function will not interfere with RF signals just like NCVM, but because it uses non-metallic materials, It needs to precisely control the thickness of the film layer, so the technical level is relatively high.

The NCVM and NMVM films developed by Efun are directly produced by the roll-to-roll (Roll to Roll) continuous sputtering process. The film layers are sputtered and stacked on the surface of the substrate, and the thickness of the film layer is well  controlled (Figure 2) to make the light constructive or destructive interference (Figure 3) to show the color effect.