Patent ID: 7882616

Claim:
A method comprising: (a) providing first and second intermediate structures, each intermediate structure having first and second surfaces; (b) placing the first surface of the first intermediate structure adjacent to the first surface of the second intermediate structure, such that the first and second intermediate structures are in a stacked relationship; (c) simultaneously removing at least a portion of each of the second surfaces of the first and second intermediate structures while in the stacked relationship resulting in the first surface in each of the first and second intermediate structures having a first degree of roughness that is greater than a second degree of roughness of the second surface of each of the first and second intermediate structures; (d) after the simultaneously removing, forming a plating layer on each of the first and second surfaces of each of the first and second intermediate structures; and (e) after the simultaneously removing, forming a magnetic layer on the second surface but not the first surface of each of the first and second intermediate structures.