Laser diode unit with enhanced thermal conduction to slider
AssigneeSeagate Technology LLC
InventorsYuhang Cheng, Scott Franzen, Zoran Jandric, James Gary Wessel, Ning Shi
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Abstract
An apparatus comprises a slider having a trailing edge and a leading edge. A laser diode unit comprises a submount and a laser diode mounted to the submount. The submount includes a mounting surface affixed to a first surface of the slider at the trailing edge such that a first surface of the submount faces toward the leading edge of the slider. A thermally conductive material covers the first surface of the submount and at least a portion of the first surface of the slider. The thermally conductive material serves as a thermal conduction pathway between the submount and the slider.
Claims21
An apparatus, comprising:
- a slider having a trailing edge and a leading edge;
- a laser diode unit comprising a submount and a laser diode mounted to the submount, the submount having a mounting surface affixed to a first surface of the slider near the trailing edge such that a first surface of the submount faces toward the leading edge of the slider;
- and
- a thermally conductive material covering the first surface of the submount and at least a portion of the first surface of the slider, the thermally conductive material serving as a thermal conduction pathway between the submount and the slider;
- wherein:
- a mounting interface is defined between the first surface of the slider and the mounting surface of the submount;
- the first surface of the slider comprises a solder layer adjacent the mounting surface of the submount;
- the mounting surface of the submount comprises a solder layer;
- and
- the thermally conductive material extends into the mounting interface.
An apparatus, comprising:
- a submount configured to be soldered to a slider, the submount having a polygonal shape with exterior surfaces and a mounting surface configured to be attached to the slider via a solder connection;
- a laser diode mounted on a first surface of the submount, the first surface comprising one or more electrical conductors for establishing electrical connections to the laser diode;
- and
- thermally conductive material covering a plurality of the exterior surfaces of the submount in addition to the mounting surface, the thermally conductive material covering the mounting surface of the submount serving as a wetting layer for the solder connection;
- wherein the one or more electrical conductors are electrically isolated from the thermally conductive material to prevent shorting of the one or more electrical conductors.
Dependencies are inferred from the claim text.