Thermally assisted magnetic recording head slider, method of manufacturing the same, head gimbal assembly, and hard disk drive

A method of manufacturing a thermally assisted magnetic recording head slider comprising a light source unit having a light emitting element emitting laser light and a submount holding the light emitting element;

• and a slider including a thin-film laminated part having a main magnetic pole layer, a near-field light generating element and an optical waveguide, comprising:
• a lead electrode forming step being formed first lead electrode and second lead electrode in a thin-film forming process which the-thin film laminated part is formed on a substrate having a plurality of slider regions being formed the sliders along scribe lines, the first lead electrode and second lead electrode are extended from a planned light source placing surface, which becomes a light source placing surface arranged rear side of the medium-opposing surface opposing a magnetic recording medium, after the substrate is cut along the scribe lines, to an outer end surface of the thin-film laminated part;
• a bar like member forming step being formed a plurality of bar like members having a plurality of the slider regions;
• a light source unit mounting step being mounted the light source unit on a light source unit area, which the light source unit is mounted, of the light source placing surface, so that substrate surface of the light emitting element are orthogonal to a laminated surface of the thin-film laminated part;
• and
• a light source connecting step being connected a first element electrode and a second element electrode, for applying voltage to the light emitting element of the light source unit, with the first lead electrode and second lead electrode respectively.

A head gimbal assembly comprising a thermally assisted magnetic recording head slider,

• wherein the thermally assisted magnetic recording head slider comprising:
• a light source unit having a light emitting element emitting laser light and a submount holding the light emitting element;
• and
• a slider including a thin-film laminated part having a main magnetic pole layer, a near-field light generating element and an optical waveguide;
• wherein a combination of the light emitting element and the near-field light generating element is comprised of a first optical pattern which includes a TE mode LD, which emits Laser light with TE mode, and TM mode PG corresponding to laser light with TM mode or a second optical pattern which includes a TM mode LD, which emits laser light with TM mode, and TE mode PG corresponding to laser light with TE mode,
• wherein the light source unit is mounted on a light source placing surface, of the slider, arranged rear side of the medium-opposing surface opposing a magnetic recording medium, so that a substrate surface of the light emitting element are orthogonal to a laminated surface of the thin film laminated part,
• wherein the slider has a plurality of electrode pads formed on an outer end surface of the thin film laminated part side,
• wherein the light source unit includes a first element electrode and a second element electrode for applying voltage to the light emitting element, and
• wherein the slider has a first connecting wiring part and a second connecting wiring part, formed on the light source placing surface, which connect the first element electrode and second element electrode with a first electrode pad and a second electrode pad of the plurality of electrode pads and insulated each other.

A hard disk drive comprising a head gimbal assembly having a thermally assisted magnetic recording head slider, and a magnetic recording medium opposing the thermally assisted magnetic recording head slider,

• wherein the thermally assisted magnetic recording head slider comprising:
• a light source unit having a light emitting element emitting laser light and a submount holding the light emitting element;
• and
• a slider including a thin-film laminated part having a main magnetic pole layer, a near-field light generating element and an optical waveguide;
• wherein a combination of the light emitting element and the near-field light generating element is comprised of a first optical pattern which includes a TE mode LD, which emits Laser light with TE mode, and TM mode PG corresponding to laser light with TM mode or a second optical pattern which includes a TM mode LD, which emits laser light with TM mode, and TE mode PG corresponding to laser light with TE mode,
• wherein the light source unit is mounted on a light source placing surface, of the slider, arranged rear side of the medium-opposing surface opposing a magnetic recording medium, so that a substrate surface of the light emitting element are orthogonal to a laminated surface of the thin film laminated part,
• wherein the slider has a plurality of electrode pads formed on an outer end surface of the thin film laminated part side,
• wherein the light source unit includes a first element electrode and a second element electrode for applying voltage to the light emitting element, and
• wherein the slider has a first connecting wiring part and a second connecting wiring part, formed on the light source placing surface, which connect the first element electrode and second element electrode with a first electrode pad and a second electrode pad of the plurality of electrode pads and insulated each other.