Surface treatment of magnetic recording heads

A magnetic recording head, comprising:

• a multi-layer substrate;
• a thin film layer formed on said multi-layer substrate;
• said multi-layer substrate including:
• an ion implantation layer formed by implantation of ions into a substrate material, and
• an intermixed layer including a material of said thin film layer intermixed with the substrate material and which is formed during ion implantation of the substrate material, said intermixed layer disposed between said thin film layer and said ion implantation layer;
• and
• said thin film layer formed concomitantly with the ion implantation of the substrate material.

A magnetic recording head comprising:

• a thin film layer deposited on a multi-layer substrate;
• the multi-layer substrate including:
• an intermixed layer forming an uppermost layer of the multi-layer substrate, the intermixed layer including a material of said thin film layer intermixed with a material of said substrate, the intermixed layer formed during ion implantation of said multi-layer substrate due to collisions between ions and the material of said thin film layer, said intermixed layer adjacent to said thin film layer;
• and
• an ion implantation layer of said multi-layer substrate formed beneath said intermixed layer by ion implantation of ions.