Hutchinson Technology Corporation

Other

Jacob D Bjorstrom

Zachary A Pokornowski

Mark A Miller

Ryan N Ruzicka

Reid C Danielson

Joseph C Wheatley

Jeffry S Bennin

Craig A Leabch

Nole D German

Paul Valentine Pesavento

Richard Rodger Jenneke

Reed T Hentges

Mark Steven Lewandowski

John A Theget

Michael T Hofflander

Catherine A Morley

Shawn P Bopp

Brian D Schafer

Brian J Stepien

John E Theisen

John L Wagner

Michael Wayne Davis

Kurt C Swanson

Wade A Linnertz

Steven A Fank

Allan D Tokuda

Justin M Eggert

Peter Francis Ladwig

Haven A Mercer

Clark T Olsen

Ryan Kariniemi

Rick R Drape

Corey S Hartmann

Brett L Haugen

Steven R Young

Duane A Lundin

Eric O Naatz

John A Rickeman

Mark G Lowry

Mark M Kiviahde

Shawn P Henze

Mark P Sponholz

Zachary D Pokornowski

Shane T Dusoski

A suspension assembly is described. A suspension assembly including a support member configured to receive at least a first circuit member. The first circuit member including at least a trace. The first circuit member disposed on the support member.

Stabilization suspensions and methods of manufacture

Embodiments of disk drive head suspensions are described that include a spring metal layer. The spring metal layer includes a base region, support arms extending from the base region, and a slider mounting region. The slider mounting region includes a proximal portion, a distal portion, and a pair of motor openings. The motor openings are configured to receive motors such that the longitudinal axes of the motors are non-parallel with the longitudinal axis of the slider mounting region. The suspensions include traces that include a base portion on the base region of the spring metal layer, a spring metal-unsupported portion extending from the base region to the slider mounting region, and a slider mounting portion extending from the spring metal-unsupported portion onto the slider mounting region. And, the suspensions include an insulating layer between portions of the spring metal layer and the conductor layer.

Co-located gimbal-based dual stage actuation disk drive head suspension manufacturing method with non-parallel motors

Co-located gimbal-based dual stage actuation disk drive head suspension with non-parallel motors

Various embodiments concern a gimbaled flexure having a dual stage actuation structure. The flexure comprises a gimbal on which a motor is mounted. The motor comprises a first and second terminals and a plurality of actuator layers formed from a piezoelectric material. The plurality of actuator layers comprise serially stacked first, second, and third actuator layers. The plurality of actuator layers are respectively poled and connected to the first and second terminals such that both of the first and second actuator layers expand while the third actuator layer contracts in response to application of a signal across the first and second terminals. The differential motion of the plurality of layers in the motor cause the motor to curl about the contracting third actuator layer. The curling motion causes a portion of the flexure to preferentially curl.

Multilayer disk drive motors having out-of-plane bending

A suspension having a DSA structure on a gimbaled flexure includes a loadbeam and a flexure attached to the loadbeam. The flexure includes a metal layer with a pair of spring arms, a tongue including a slider mounting surface, and a pair of struts connecting the pair of spring arms to the tongue. The suspension further includes a pair of traces including one or more insulated conductors and being routed around opposite sides of the slider mounting surface, over the pair of struts to a set of terminal contacts on a distal portion of the tongue. The suspension also includes a motor mounted on the flexure, the motor having opposite lateral ends, the motor orientated laterally across the flexure such that the opposite lateral ends of the motor are on opposite lateral sides of the flexure. Electrical activation of the motor rotates the slider mounting surface relative to the loadbeam.

Co-located gimbal-based DSA disk drive suspension with traces routed around slider pad

Various embodiments concern a gimbaled flexure having a dual stage actuation structure. The flexure comprises a gimbal on which a motor is mounted. The motor comprises a first terminal, one or more layers of piezoelectric material, and a metal stiffener disposed directly on the first terminal. The stiffener comprises a layer of metal defining a majority of a top side of the motor. The first terminal can be gold sputtered on the piezoelectric material while the stiffener can be nickel plated on the gold. The stiffener can cause the motor, and the flexure on which it is mounted, to curl upon electrical activation of the motor.

Piezoelectric motors including a stiffener layer

A stainless steel dual stage actuated disk drive head suspension baseplate including a plated electrical contact area having nickel and gold. The baseplate can be heat treated. The nickel and gold can be in a mixture.

Low resistance ground joints for dual stage actuation disk drive suspensions

Piezoelectric disk drive suspension motors having plated stiffeners

Stable, low resistance conductive adhesive ground connections between motor contacts and a gold-plated contact area on a stainless steel component of a dual stage actuated suspension. The stainless steel component can be a baseplate, load beam, hinge, motor plate, add-on feature or flexure.

Various embodiments concern a gimbaled flexure having a dual stage actuation structure comprising flexure which comprises a gimbal. The gimbal comprises at least one spring arm and a tongue connected to the at least one spring arm. The dual stage actuation structure further comprises a motor mounted on the gimbal, the motor comprising a top side and a bottom side opposite the top side, the bottom side of the motor facing the flexure. The dual stage actuation structure further comprises a damper located between the motor and the flexure, the damper contacting the tongue and the bottom side of the motor. The damper comprises one or both of elastic and viscoelastic material. Various other features of a dual stage actuation structure are provided.

Co-located gimbal-based dual stage actuation disk drive suspensions with dampers

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Hutchinson, MN, United States of America

Jacob D Bjorstrom