Abstract: A gram load measurement assembly is configured to measure the gram load of a head stack assembly (HSA) of a disk drive being manufactured using the HSA's suspension tabs, thereby avoiding contact with the Air Bearing Surface (ABS) of the HSA's sliders when checking the gram load forces after the installation of the Head Gimbal Assembly (HGA) installation on the actuator assembly.

Abstract: A de-swage machine for removal of a head of a head stack assembly including a tooling unit configured to receive a head stack assembly comprising a plurality of heads and an indicia, a blade module configured to remove a head from the head stack assembly, an indicia reader configured to read the indicia, and a controller. The controller is configured to select and remove a head from the head stack assembly by at least reading the indicia using the indicia reader, transmitting the indicia to a database, receiving head stack assembly information corresponding to the indicia from the database, selecting the head for removal based on the head stack assembly information, and removing the selected head using the blade module. The blade module can also include a force sensor, and the de-swage machine can also include an imaging unit.

Abstract: A de-swage machine for removal of a head of a head stack assembly including a tooling unit configured to receive a head stack assembly comprising a plurality of heads and an indicia, a blade module configured to remove a head from the head stack assembly, an indicia reader configured to read the indicia, and a controller. The controller is configured to select and remove a head from the head stack assembly by at least reading the indicia using the indicia reader, transmitting the indicia to a database, receiving head stack assembly information corresponding to the indicia from the database, selecting the head for removal based on the head stack assembly information, and removing the selected head using the blade module. The blade module can also include a force sensor, and the de-swage machine can also include an imaging unit.

Abstract: A method of manufacturing a suspension for a head of a data storage device is disclosed, the method comprising etching at least one continuous cycle of a periodic pattern on the suspension, wherein a first part of the continuous cycle adjusts a pitch static attitude (PSA) of the suspension and a second part of the continuous cycle adjusts a roll static attitude (RSA) of the suspension.

Abstract: A de-swage machine for removal of a head of a head stack assembly including a tooling unit configured to receive a head stack assembly comprising a plurality of heads and an indicia, a blade module configured to remove a head from the head stack assembly, an indicia reader configured to read the indicia, and a controller. The controller is configured to select and remove a head from the head stack assembly by at least reading the indicia using the indicia reader, transmitting the indicia to a database, receiving head stack assembly information corresponding to the indicia from the database, selecting the head for removal based on the head stack assembly information, and removing the selected head using the blade module. The blade module can also include a force sensor, and the de-swage machine can also include an imaging unit.

Abstract: An assembly may comprise a head stack assembly (HSA) swaging tester device, comprising a base and a top tooling assembly connected thereto. The top tooling assembly may comprise an actuator motor; a load cell connected to the actuator motor; and a force gauge connected to the load cell, the force gauge being configured to measure torque imparted by the actuator motor on an HSA under manufacture. The force gauge of the HSA swaging tester device may be calibrated according to a selected type of HSA to undergo the swaging procedure by coupling a selected reference torque assembly to an axle connected to the actuator motor, the selected reference torque assembly being configured to impart a known torque onto the axle. The force gauge may then be adjusted (e.g., calibrated) according to the known torque imparted upon the axle by the selected reference torque assembly.

Abstract: A tester including a laser transmitter, a laser receiver, a zero reference plane located between the laser transmitter and the laser receiver, a tower reference plane located between the laser transmitter and the laser receiver, wherein the tower reference plane defines an aperture, and a controller. The controller is configured to measure a pitch static attitude of a head stack assembly by at least determining a zero axis, determining a first horizontal position of the aperture and a second horizontal position of the aperture, determining a mid-point of a first slider of the head stack assembly, determining a first vertical position of the aperture, determining a first horizontal line, and generating a pitch static attitude reference line corresponding to a pitch static attitude of the first slider based on a least squares approximation using the mid-point of the first slider and the first horizontal line.

Abstract: A tester for measuring a pitch static attitude of a head stack assembly including a laser transmitter configured to transmit laser beams, and a laser receiver configured to receive the laser beams from the laser transmitter, wherein the laser transmitter and the laser receiver are configured to receive a head stack assembly between the laser transmitter and the laser receiver. The tester also includes a laser guide located between the laser transmitter and the laser receiver, and configured to block the laser beams from entering a gap in the head stack assembly and reaching the laser receiver.