Seagate Technology Incorporated

Bryn John Howells

Fadi El Hallak

Mark Anthony Gubbins

Aidan Dominic Goggin

Scott Eugene Olson

Christopher Neil Harvey

Reshma Anamari Mohandas

Martin Liam McGarry

Michael Gerald Boyle

Frank Anthony McGinnity

A method comprising the steps of forming a recording head comprising a waveguide, a heat sink and a bleed resistor on a first substrate, is described. The bleed resistor is coupled to the heat sink and the substrate. The top surface of the heat sink is planarized to form a planarized heat sink. A laser diode formed on a second substrate is transfer printed onto the planarized heat sink to form an integrated laser diode.

Laser heat sinking for integrating laser diode into recording heads at wafer level

A heat-assisted magnetic recording head includes a laser, a near-field transducer, a primary waveguide, a secondary waveguide, and a photodiode. The laser is configured to emit electromagnetic radiation. The near-field transducer is configured to focus and emit an optical near-field. The primary waveguide configured to receive the electromagnetic radiation and propagate the electromagnetic radiation toward and proximal to the near-field transducer. The secondary waveguide configured to receive a portion of the electromagnetic radiation from the primary waveguide. The photodiode configured to receive the portion of the electromagnetic radiation from the secondary waveguide and emit a signal that represents a magnitude of the electromagnetic radiation that the laser emits.

Heat-assisted magnetic recording head with an integrated photodiode

Growing community of inventors

Londonderry, United Kingdom

Bryn John Howells