Seagate Technology Incorporated

Western Digital Technologies, Inc.

Michael Steven Quam

Brett Robert Herdendorf

Andrew Michael Blair

Justin Holwell

Ronald Eldon Anderson

Kermit Ray Harmon

Steven Ivars Palks

Dale Allen Blomgren

Steven Ernest Wheeler

Klaus Obergfell

David Wuester, Sr

Michael Jon Roe

Mujahid Akbar Khan

Michael John Roe

Philip Louis Johnson

David Allen Reints

Reza Ray Mehr

A method for forming an electrical connection with head gimbal assembly. At least a portion of an unmounted head gimbal assembly is placed on a surface. The unmounted head gimbal assembly includes a flexible portion, the flexible portion includes contact pads, and the surface includes electrical contacts and slots. A section of the flexible portion is pushed against the surface, and the contact pads are interconnected with the electrical contacts using a clamp assembly controlled by a computer. The clamp assembly includes a clamp with pins, and the interconnecting includes engaging the pins with the slots, rotating the clamp towards the surface, and clamping the contact pads against the electrical contacts.

Electrical connection for testing head gimbal assemblies

A method for testing head gimbal assemblies includes picking a first head gimbal assembly and holding the first head gimbal assembly with a first an end effector. The first end effector and the picked head gimbal assembly are positioned adjacent a nest using at least one actuator, and the first picked head gimbal assembly is released from the end effector to the nest. The first head gimbal assembly is tested on the nest by reading from and/or writing to a rotating disc. A second head gimbal assembly is held with a second end effector at the same time the first end effector holds the first head gimbal assembly.

End effector for head gimbal assembly testing

A method of loading a head gimbal assembly on a disc includes attaching an unmounted head gimbal assembly to a four bar loader. The four bar loader includes a fixed plate, a pivot plate, and a four bar linkage connecting the fixed plate to the pivot plate. The four bar loader is then used to tilt the attached head gimbal assembly toward the surface of the disc.

Head gimbal assembly loader

A method for dynamic electrical testing of head gimbal assemblies may include initiating an automated continuous process that includes selecting an unmounted head gimbal assembly; aligning the unmounted head gimbal assembly; loading the unmounted head gimbal assembly to a disc; and testing the unmounted head gimbal assembly.

Method and apparatus for head gimbal assembly testing

Alignment of unmounted head gimbal assemblies for testing

A screwdriver is disclosed comprising a base, a carriage moveably coupled to the base, an actuator operable to move the carriage relative to the base, and a slider comprising an attached screw bit, wherein the slider is coupled to the base through the carriage and the slider is moveably coupled to the carriage such that the slider and attached screw bit move together relative to the carriage. The screwdriver further comprises a position detector operable to detect a position of the slider relative to the carriage. In one embodiment, the carriage is moved relative to the base to move the screw towards the work surface. After the screw contacts the work surface, the carriage is moved further relative to the base causing the slider to move relative to the carriage, and the movement of the slider relative to the carriage is detected using the position detector.

Screwdriver comprising a slider having an attached screw bit and a position detector for position feedback

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Morgan Hill, CA, United States of America

Michael Steven Quam