Patent ID: 10490221

Abstract:
A near field transducer has a bottom disc with a first surface facing a write pole of a recording head. The bottom disc is recessed from a media-facing surface of the recording head by a distance R. An anchor layer is stacked on the first surface of the bottom disc and has an enlarged part with a peripheral shape corresponding to that of the bottom disc. The anchor layer further has a peg that extends from an end of the enlarged part towards the media facing surface, the end of the enlarged part recessed from the media facing surface by the distance R. A middle disc is on a second surface of the anchor layer. The middle disc is recessed from the media-facing surface a distance MDSCR that is greater than the distance R. A heat sink is stacked on a third surface of the middle disc. The heat sink is recessed from the media-facing surface by at least a distance TPH that is greater than the distance MDSCR.