Patent ID: 7610673

Claim:
A method of manufacturing a vertical recording magnetic head including a main magnetic pole layer formed with a track width on a surface opposite to a recording medium, the method comprising the steps of: forming a pair of neck height markers so that when a plane, that intersects the pair of neck height markers, moves from a shallow side to a deep side, an area of a portion of the plane that intersects the first of the pair of neck height markers increases while an area of a portion of the plane that intersects the second of the pair of neck height markers decreases, wherein the first and the second of the pair of neck height markers are disposed spaced apart and not in contact with each other the first of the pair of neck height markers has a first side in a cross section perpendicular to the surface opposite to the recording medium and parallel to the direction in which the first and the second of the pair of neck height markers are separated, the second of the pair of neck height markers has a second side in the cross section perpendicular to the surface opposite to the recording medium and parallel to the direction in which the first and the second pair of neck height markers are separated, and the first side and the second side face each other and are in parallel; and controlling a neck height position of the main magnetic pole layer based on exposure area ratios of the pair of neck height markers in the surface opposite to the recording medium.