Patent ID: 7446980

Claim:
A method of constructing a bi-layer trailing shield for a perpendicular magnetic write element, the method comprising: forming a magnetic write pole for perpendicular magnetic recording; depositing a non-magnetic, electrically insulating fill material; performing a chemical mechanical polishing process (CMP); after performing the chemical mechanical polishing (CMP), depositing a non-magnetic, electrically conductive seed layer; forming a first photoresist frame over the seed layer, the photoresist frame having an opening that exposes a portion of the underlying seed layer; depositing a first layer of magnetic material into the opening in the first photoresist frame; forming a second photoresist frame, the second photoresist frame having an opening that exposes at least a portion of the first layer of magnetic material; and depositing a second layer of magnetic material into the opening in the second photoresist frame.