A data storage device is disclosed comprising a base casting forming a housing, wherein components within the housing comprise a first disk, a first head, and a first printed circuit board (PCB) being curved to substantially follow an arc of a first part of a shroud that surrounds at least part of the first disk. The first PCB has mounted thereon a first integrated circuit comprising a first microprocessor configured to actuate the first head over the first disk in order to access the first disk.

In one embodiment, an apparatus includes a module having an array of transducers, and a heating element having multiple parts positioned proximate to the array of transducers. The multiple parts of the heating element are distinct from each other, where the multiple parts include a first part, a second part, and a third part. In addition, the first part includes a center portion and the second and third parts include a second portion and a third portion, respectively, and are positioned on opposite ends and a center portion positioned therebetween. The heating element is configured to produce more heat per unit length along the second and third portions at the opposite ends than in the center portion.

In one embodiment, an apparatus includes a module having an array of transducers, and a heating element having multiple parts positioned proximate to the array of transducers. The multiple parts of the heating element are distinct from each other, where the multiple parts include a first part, a second part, and a third part. In addition, the first part includes a center portion and the second and third parts include a second portion and a third portion, respectively, and are positioned on opposite ends and a center portion positioned therebetween. The heating element is configured to produce more heat per unit length along the second and third portions at the opposite ends than in the center portion.

A folded lasing cavity comprises at least one bend. The folded lasing cavity is disposed on and configured to emit light along a substrate-parallel plane. An etched facet is on an emitting end of the folded lasing cavity and an etched mirror is on another end of the folding lasing cavity. An etched shaping mirror redirects light received from the etched facet in a direction normal to the substrate-parallel plane.

A method is disclosed for forming a perpendicular magnetic recording writer with an all wrap around (AWA) shield design wherein a surface of the leading shield that contacts the lead gap has a notch that is recessed 20 to 120 nm from the air bearing surface (ABS) and has a first side with a down-track dimension of 20-200 nm that is aligned parallel to the ABS. In one embodiment, the notch is aligned below the main pole leading side and has a cross-track width substantially the same as the track width of the main pole trailing side. The notch has two sidewalls formed equidistant from a center plane that bisects the leading shield wherein each sidewall intersects the first side at an angle of 90 to 170 degrees. Accordingly, overwrite and bit error rate are improved while adjacent track interference and tracks per square inch capability are substantially maintained.

In one embodiment, an apparatus includes a module having an array of transducers, and a heating element having multiple parts positioned proximate to the array of transducers. The multiple parts of the heating element are distinct from each other, where the multiple parts include a first part, a second part, and a third part. In addition, the first part includes a center portion and the second and third parts include a second portion and a third portion, respectively, and are positioned on opposite ends and a center portion positioned therebetween. The heating element is configured to produce more heat per unit length along the second and third portions at the opposite ends than in the center portion.

In one embodiment, an apparatus includes a module having an array of transducers, and a heating element having multiple parts positioned proximate to the array of transducers. The multiple parts of the heating element are distinct from each other, where the multiple parts include a first part, a second part, and a third part. In addition, the first part includes a center portion and the second and third parts include a second portion and a third portion, respectively, and are positioned on opposite ends and a center portion positioned therebetween. The heating element is configured to produce more heat per unit length along the second and third portions at the opposite ends than in the center portion.

In one embodiment, an apparatus includes a module having an array of transducers, and a heating element having multiple parts positioned proximate to the array of transducers. The multiple parts of the heating element are distinct from each other, where the multiple parts include a first part, a second part, and a third part. In addition, the first part includes a center portion and the second and third parts include a second portion and a third portion, respectively, and are positioned on opposite ends and a center portion positioned therebetween. The heating element is configured to produce more heat per unit length along the second and third portions at the opposite ends than in the center portion.

In one embodiment, an apparatus includes a module having an array of transducers, and a heating element having multiple parts positioned proximate to the array of transducers. The multiple parts of the heating element are distinct from each other, where the multiple parts include a first part, a second part, and a third part. In addition, the first part includes a center portion and the second and third parts include a second portion and a third portion, respectively, and are positioned on opposite ends and a center portion positioned therebetween. The heating element is configured to produce more heat per unit length along the second and third portions at the opposite ends than in the center portion.

In one embodiment, an apparatus includes a module having an array of transducers and a heating element positioned proximate to the array of transducers. The heating element has opposite ends and a center portion therebetween, where the heating element is configured to produce more heat per unit length along the opposite ends than in the center portion.