Laser-ignited reactive HAMR bonding

摘要

The present disclosure generally relates to a HAMR head and a method for fabrication thereof. The HAMR head has a write head with a waveguide extending therethrough. A laser diode is coupled to a submount that is bonded to the write head using an adhesion layer, a solder structure, and a self-propagating multilayer alloying stack.

主权项

1. A magnetic recording head, comprising:
a slider body; a write head coupled to the slider body, the write head having an air bearing surface and a second surface opposite the air bearing surface, the write head including:
a near field transducer disposed at the air bearing surface; anda waveguide extending from the second surface to the near field transducer; a submount coupled to the slider body; a laser diode coupled to the submount and aligned with the waveguide such that light emitted from the laser diode is directed to the waveguide; a solder structure coupled between the submount and the slider body; an adhesion layer coupled between the slider body and the solder structure; and a self-propagating, multilayer alloying stack disposed between one of the following:
the adhesion layer and the solder structure; orthe solder structure and the submount.