Patent ID: 6197375
Filing Date: 2001-03-06
Classification: C23C

Abstract:
Method of making an article that comprises a film of diamond, the method comprisinga) providing a film of polycrystalline diamond having at least one free major surface; andb) removing a quantity of diamond material from said free major surface;wherein step b) comprisesc) contacting at least a portion of the free major surface with metal selected from the group consisting of Fe, Ni, Mn, and Ti byi) depositing a layer of the metal on at least a portion of the free major surface; orii) urging a body of the metal against the free major surface; oriii) contacting the free major surface with a powder of the metal; andd) maintaining the metal-contacted diamond film at a temperature in the range 600-1100.degree. C. without relative motion in any direction parallel to the free major surface between the diamond film and the contacting metal, for an effective time for removal of said quantity of diamond material.