公开(公告)号：US10943613B1

公开(公告)日：2021-03-09

申请号：US16817705

申请日：2020-03-13

Applicant: SAE Magnetics (H.K.) Ltd. ,  Headway Technologies, Inc.

Inventor： Ryo Hosoi ,  Takashi Honda ,  Seiichi Takayama ,  Sik Fun Chan ,  Tai Boon Lee ,  Dayu Zhou

IPC: G11B5/60 ,  G11B5/31 ,  G11B5/48 ,  G11B5/39 ,  G11B5/00

Abstract: A thermally assisted magnetic head including a slider and a light source-unit. The slider includes a slider substrate and a magnetic head part. The light source-unit includes a laser diode and a sub-mount. The magnetic head part includes a medium-opposing surface, a light source-opposing surface and a waveguide which guides laser light from the light source-opposing surface to the medium-opposing surface. The slider substrate includes a light source-cavity formed in a light source-placing surface on which the light source-unit is placed. The light source-cavity includes an opening concave part being formed larger than a mount bottom surface of the sub-mount. The mount bottom surface of the sub-mount is inserted into the opening concave part to be joined to the light source-cavity.