Patent ID: 7563346
Filing Date: 2009-07-21
Classification: C23C

Abstract:
1. A method for manufacturing a mold having a multilayer diamond-like carbon film, the method comprising the steps of: providing a mold preform having a molding surface; depositing an adhesive layer on the molding surface of the mold preform using radio frequency sputtering deposition; depositing a densified layer on the adhesive layer using radio frequency sputtering deposition, the adhesive layer being configured for enhancing bonding strength between the densified layer and the molding surface of the mold preform, and the densified layer being configured for enhancing a density of the multilayer diamond-like carbon film; depositing an amorphous nitrogen-doped diamond-like carbon layer on the densified layer using radio frequency sputtering deposition; depositing an amorphous nitrogen-hydrogen-doped diamond-like carbon layer on the amorphous nitrogen-doped diamond-like carbon layer using radio frequency sputtering deposition; and depositing an amorphous hydrogen-doped diamond-like carbon layer on the nitrogen-hydrogen-doped diamond-like carbon layer using radio frequency sputtering deposition.