公开(公告)号：US20240290347A1

公开(公告)日：2024-08-29

申请号：US18658688

申请日：2024-05-08

Applicant: Magnecomp Corporation

Inventor： Ekaratch Pankaew ,  Kuen Chee Ee ,  Preecha Sudachun ,  David Glaess ,  Chanatkarn Angsutanasombat

IPC: G11B5/48

CPC classification number: G11B5/4833 ,  G11B5/486

Abstract: A dielectric layer configured to overlay a spring metal layer in a suspension assembly is described. The dielectric layer includes a tongue portion including a proximate end and a distal end, trace portions extending from the tongue portion, and an aperture aligned with the void and defined by the tongue portion. The aperture includes an elongated opening with opposing ends partially aligning with the central opening of the void. The aperture further includes slits extending from the opposing ends of the elongated opening and at least partially aligned with slits of the void in the spring metal layer.

公开(公告)号：US11948610B2

公开(公告)日：2024-04-02

申请号：US17945813

申请日：2022-09-15

Applicant: Magnecomp Corporation

Inventor： Kuen Chee Ee ,  Ekaratch Pankaew ,  Preecha Sudachun

IPC: G11B5/48

CPC classification number: G11B5/4826 ,  G11B5/4833 ,  G11B5/484

Abstract: A suspension is described. The suspension includes a base plate and a load beam coupled to the base plate. The base plate includes a distal elongated element and a proximal elongated element. The distal elongated element includes at least one non-straight baseplate edge and the proximal elongated element includes at least one non-straight baseplate edge. The load beam includes a first mounting shelf and a second mounting shelf. The load beam is coupled to the base plate such that the first mounting shelf is exposed adjacent to the distal elongated element, and the second mounting shelf is exposed adjacent to the proximal elongated element. The first and second mounting shelves are configured to receive an actuator, such that an edge of the actuator and the at least one non-straight baseplate edge forms a gap.

公开(公告)号：US20210358518A1

公开(公告)日：2021-11-18

申请号：US17320038

申请日：2021-05-13

Applicant: Magnecomp Corporation

Inventor： Kuen Chee Ee ,  Ekaratch Pankaew ,  Preecha Sudachun

IPC: G11B5/48

Abstract: A suspension is described. The suspension includes a base plate and a load beam coupled to the base plate. The base plate includes a distal elongated element and a proximal elongated element. The distal elongated element includes at least one non-straight baseplate edge and the proximal elongated element includes at least one non-straight baseplate edge. The load beam includes a first mounting shelf and a second mounting shelf. The load beam is coupled to the base plate such that the first mounting shelf is exposed adjacent to the distal elongated element, and the second mounting shelf is exposed adjacent to the proximal elongated element. The first and second mounting shelves are configured to receive an actuator, such that an edge of the actuator and the at least one non-straight baseplate edge forms a gap.

公开(公告)号：US10916265B2

公开(公告)日：2021-02-09

申请号：US16911249

申请日：2020-06-24

Applicant: Magnecomp Corporation

Inventor： Long Zhang ,  Kuen Chee Ee ,  David Glaess ,  Preecha Sudachun ,  Ekaratch Pankaew

IPC: G11B5/48 ,  H01L41/047 ,  H01L41/09 ,  H01L41/083

Abstract: A piezoelectric actuator assembly is described. The piezoelectric actuator assembly includes a first, second and third active piezoelectric layers. The first layer includes a top surface and a bottom surface. The second layer includes a top surface and a bottom surface over the top surface of the first layer. The third layer includes a top surface and a bottom surface over the top surface of the second layer. The first and second layers can define a first effective electrode length. Similarly, the second and third layers can define a second effective electrode length configured to be longer than the first effective electrode length.

公开(公告)号：US20210012795A1

公开(公告)日：2021-01-14

申请号：US16911249

申请日：2020-06-24

Applicant: Magnecomp Corporation

Inventor： Long Zhang ,  Kuen Chee Ee ,  David Glaess ,  Preecha Sudachun ,  Ekaratch Pankaew

IPC: G11B5/48 ,  H01L41/047 ,  H01L41/083 ,  H01L41/09

Abstract: A piezoelectric actuator assembly is described. The piezoelectric actuator assembly includes a first, second and third active piezoelectric layers. The first layer includes a top surface and a bottom surface. The second layer includes a top surface and a bottom surface over the top surface of the first layer. The third layer includes a top surface and a bottom surface over the top surface of the second layer. The first single and second layers can define a first effective electrode length. Similarly, the second and third layers can define a second effective electrode length configured to be longer than the first effective electrode length.

公开(公告)号：US11501797B2

公开(公告)日：2022-11-15

申请号：US17320038

申请日：2021-05-13

Applicant: Magnecomp Corporation

Inventor： Kuen Chee Ee ,  Ekaratch Pankaew ,  Preecha Sudachun

IPC: G11B5/48

Abstract: A suspension is described. The suspension includes a base plate and a load beam coupled to the base plate. The base plate includes a distal elongated element and a proximal elongated element. The distal elongated element includes at least one non-straight baseplate edge and the proximal elongated element includes at least one non-straight baseplate edge. The load beam includes a first mounting shelf and a second mounting shelf. The load beam is coupled to the base plate such that the first mounting shelf is exposed adjacent to the distal elongated element, and the second mounting shelf is exposed adjacent to the proximal elongated element. The first and second mounting shelves are configured to receive an actuator, such that an edge of the actuator and the at least one non-straight baseplate edge forms a gap.

公开(公告)号：US11348608B2

公开(公告)日：2022-05-31

申请号：US17165749

申请日：2021-02-02

Applicant: Magnecomp Corporation

Inventor： Peter Hahn ,  David Glaess ,  Kuen Chee Ee ,  Benjapa Tanampee ,  Keith Allan Vanderlee ,  Preecha Sudachun ,  Johnathan Phu

IPC: G11B5/48

Abstract: A method of manufacturing a tri-stage assembly is described herein. The method includes attaching a first microactuator and a second microactuator to a trace gimbal to a flexure during a PZT on flexure process (POF). The first microactuator is located at a distal end of the flexure and the second microactuator located at a proximal end of the flexure. The method also includes welding the trace gimbal to a baseplate, and a load beam to secure the trace gimbal including the first microactuator and the second microactuator.

公开(公告)号：US09214176B1

公开(公告)日：2015-12-15

申请号：US14806907

申请日：2015-07-23

Applicant: Magnecomp Corporation

Inventor： Ajay Sharma ,  Preecha Sudachun ,  Ekkapong Simtong

IPC: G11B5/48 ,  G11B5/596 ,  G11B19/04 ,  G11B33/08

CPC classification number: G11B5/59694 ,  G11B5/483 ,  G11B5/4873 ,  G11B19/042

Abstract: A PZT limiter in a microactuator type dual stage actuated (DSA) suspension limits travel of the PZT, particularly of the cantilevered end of the PZT and particularly during non-operational shock. The PZT limiter thus limits the stresses including bending placed on the PZT during the shock event and thus helps to prevent cracking of the PZT. Additionally, by limiting displacement of the PZT, the limiter improves the mechanic and electrical performance of the suspension during operation.

Abstract translation: 微型致动器类型双级致动（DSA）悬架中的PZT限制器限制了PZT的移动，特别是PZT的悬臂端，特别是在非操作冲击期间。 因此，PZT限制器在冲击事件期间限制了包括弯曲放置在PZT上的应力，从而有助于防止PZT的开裂。 另外，通过限制PZT的位移，限制器可以改善悬架在运行过程中的机械和电气性能。

公开(公告)号：US12002497B2

公开(公告)日：2024-06-04

申请号：US17158955

申请日：2021-01-26

Applicant: Magnecomp Corporation

Inventor： Ekaratch Pankaew ,  Kuen Chee Ee ,  Preecha Sudachun ,  David Glaess ,  Chanatkarn Angsutanasombat

IPC: G11B5/48

CPC classification number: G11B5/4833 ,  G11B5/486

Abstract: A dielectric layer configured to overlay a spring metal layer in a suspension assembly is described. The dielectric layer includes a tongue portion including a proximate end and a distal end, trace portions extending from the tongue portion, and an aperture aligned with the void and defined by the tongue portion. The aperture includes an elongated opening with opposing ends partially aligning with the central opening of the void. The aperture further includes slits extending from the opposing ends of the elongated opening and at least partially aligned with slits of the void in the spring metal layer.

公开(公告)号：US20230015787A1

公开(公告)日：2023-01-19

申请号：US17945813

申请日：2022-09-15

Applicant: Magnecomp Corporation

Inventor： Kuen Chee Ee ,  Ekaratch Pankaew ,  Preecha Sudachun

IPC: G11B5/48

Abstract: A suspension is described. The suspension includes a base plate and a load beam coupled to the base plate. The base plate includes a distal elongated element and a proximal elongated element. The distal elongated element includes at least one non-straight baseplate edge and the proximal elongated element includes at least one non-straight baseplate edge. The load beam includes a first mounting shelf and a second mounting shelf. The load beam is coupled to the base plate such that the first mounting shelf is exposed adjacent to the distal elongated element, and the second mounting shelf is exposed adjacent to the proximal elongated element. The first and second mounting shelves are configured to receive an actuator, such that an edge of the actuator and the at least one non-straight baseplate edge forms a gap.