Patent ID: 7963024

Claim:
A method of manufacturing a magnetic write head for perpendicular magnetic data recording, the method comprising: forming a magnetic shaping layer; forming a magnetic write pole over the shaping layer; forming a magnetic trailing shield over an end of the magnetic write pole, the trailing shield being separated from the magnetic write pole by a non-magnetic trailing gap layer; forming a magnetic back gap layer, magnetically connected with the magnetic shaping layer; conformally depositing a layer of non-magnetic, electrically insulating material; forming a mask structure, the mask structure having an opening over each of the trailing shield and the magnetic back gap layer; performing a reactive ion milling to remove portions of the conformally deposited layer of non-magnetic, electrically insulating material; and forming an electrically conductive write coil over the conformally deposited thin layer of non-magnetic, electrically insulating material without an intervening chemical mechanical polishing step.