Seagate Technology Incorporated

Chang Xie

Chubing Peng

Tae-Woo Lee

Mark Ostrowski

David Chris Seets

Lien Lee

Karen Virginia Rud

Christopher John Cote

Lisa M Hanson

A waveguide a core extending along a light propagation and a coupling layer adjacent one side of the core along the light propagation direction. A gradient index material is adjacent to at least one side of the coupling layer. The gradient index material has a first refractive index proximate the coupling layer and a second refractive index away from the coupling layer. The gradient index material is configured to direct light from an input facet to the core layer.

Waveguide with gradient index material adjacent input coupler

A waveguide has an input end near a top of a slider coupled to receive light from an energy source. The waveguide delivers the light at an output end of the waveguide near a bottom of the slider. The apparatus includes light blocking members on respective first and second cross track sides of the waveguide. The light blocking members are configured to block stray light away from a light path. The light blocking members are at a location along a length of the waveguide between the top and the bottom of the slider. Confinement of light within the waveguide is near a maximum at the location.

Light blocker for stray light reduction within a slider

A method of depositing material onto a base portion of a wafer is disclosed. The method includes forming a bevel into a portion of a surface of the base portion of the wafer and depositing a first layer of conductive material onto the beveled portion of the base portion so that part of the first layer includes a wedge shape above the surface of the base portion. A second layer of conductive material is deposited onto the base portion including the portion of the base portion onto which the first layer of material is deposited.

Self-aligned bevels for write poles

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Rosemount, MN, United States of America

Chang Xie