Abstract: A low inductance electrical spring connector for a disc drive interconnecting the conductors of a flex circuit support and seal apparatus to conductive traces on a PCB, the electrical spring connector having a dielectric housing with a plurality of spaced-apart insulator portions, and a plurality of conductive spring contacts disposed between the insulator portions. The dielectric housing forms an open ended insertion cavity disposable below the flex circuit support and seal apparatus. First ends of the conductive spring contacts are solderable to conductive traces on the PCB, while second ends of the conductive spring contacts are contact surfaces disposed in the insertion cavity. Inserting the conductors of the flex circuit adjacent the contact surfaces into the insertion cavity causes the contact surfaces to engage the conductors of the flex circuit to secure the flex circuit support and seal apparatus while providing electrical contact between the head-disc assembly and the printed circuit board.

Abstract: A transducer in a magnetic storage device includes an elongated magnetoresistive element having an active region. First and second electrical contacts couple to the elongated magnetoresistive element on opposite sides of the active region. A bottom inductive write pole and shared shield is positioned adjacent the elongated magnetoresistive element and includes a body region and a pole tip region proximate the active region. The shared shield includes a notch defined between the pole tip region and the body region to thereby improve magnetic stability in the pole tip region. A top inductive write pole is spaced apart from the bottom inductive write pole and shared shield to form a magnetic gap with the pole tip region for inductively writing information.

Abstract: A magnesium alloy structural member for supporting at least one actuator arm in a hard disk drive and a method for making a shaped magnesium part having a fluorocarbon coating is disclosed. The coating is applied by exposing the member to a reactive gas in the presence of a glow discharge plasma to prevent corrosion. The glow discharge is generated by providing a vacuum environment at a pressure of between 250 and 300 millitorr in a reaction chamber and applying power to a pair of electrodes contained within the reaction chamber. Power is supplied at between about 100 and about 200 watts at about 13.6 megahertz, forming a low temperature glow discharge plasma. A reactive gas comprising a fluorinated alkane is introduced to the reaction chamber, and a pressure of between about 100 and about 300 millitorr is maintained. The structural member is exposed to the reactive gas and the plasma for an amount of time sufficient to form a thin and uniform polymeric fluorocarbon coating on the surface of the part.