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公开(公告)号：US20180096701A1
公开(公告)日：2018-04-05
申请号：US15281264
申请日：2016-09-30
Applicant: Seagate Technology LLC
Inventor： Vijay Kumar , Razman Zambri
IPC: G11B5/48
CPC classification number: G11B5/4853 , G11B5/483 , G11B5/4833 , G11B5/5552 , G11B5/6058
Abstract: A data storage device may employ a suspension that positions a transducing head proximal a data storage medium. The suspension can consist of an active fiber composite that spans a portion of a loadbeam. The active fiber composite can be configured with at least one active fiber contacting a supporting layer.
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公开(公告)号：US08837090B2
公开(公告)日：2014-09-16
申请号：US13951570
申请日：2013-07-26
Applicant: Seagate Technology LLC
Inventor： Michael Allen Greminger , Razman Zambri , Jackson William Brandts
IPC: G11B5/48
CPC classification number: G11B5/4833 , G11B5/4826
Abstract: A head suspension for a disk drive with a load beam having continuous rails and a distal lift tab. A dimple is positioned proximal to the lift tab, either on the load beam or the gimbal, the dimple providing a pitch axis and a roll axis for the slider. The suspension also includes at least one tab member fixed in relation to the load beam, where each of the at least one tab member is aligned with or is distal to the dimple. The at least one tab and a portion of the gimbal define a gimbal limiter that is aligned with or distal to the dimple. The at least one tab member extends either longitudinally or laterally from the load beam at or distal to the dimple.
Abstract translation: 一种具有负载梁的磁盘驱动器的磁头悬架，其具有连续轨道和远端提升翼片。 凹坑位于靠近升降接头的位置，无论是在负载梁上还是在万向节上，凹坑提供俯仰轴线和滑块轴线。 所述悬架还包括相对于所述负载梁固定的至少一个突片构件，其中所述至少一个突片构件中的每一个与所述凹坑对准或远离所述凹坑。 所述至少一个翼片和所述万向架的一部分限定与所述凹坑对准或远离所述凹坑的万向节限制器。 所述至少一个突片构件在所述凹坑处或远端处从所述负载梁纵向或横向延伸。
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公开(公告)号：US20130286801A1
公开(公告)日：2013-10-31
申请号：US13840197
申请日：2013-03-15
Applicant: SEAGATE TECHNOLOGY LLC
CPC classification number: H05K1/111 , G11B5/484 , G11B5/4853 , G11B5/486 , G11B5/4866 , G11B13/04 , H05K1/0277 , H05K1/0298 , H05K1/115
Abstract: A flex circuit including a multiple layer structure is disclosed. The multiple layered structure includes a first or top layer and a second or base layer. Top traces and bond pads are fabricated on the top or obverse layer and interlayer traces and bond pads are fabricated between the first and second layers to provide an electrical interconnect to electrical components on a head assembly. In an illustrated embodiment, the flex circuit includes portions including the first or base layer and the second or top layer and one or more reduced thickness portion including the first or base layer and not the second layer. In one embodiment, the gimbal portion of the flex circuit includes the first layer and not the second layer of the multiple layer structure and in another embodiment a bending portion of the flex circuit includes the first base layer and not the second layer of the multiple layered structure to provide a reduced thickness to facilitate bending, for example in a micro-actuation region of the load beam.
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公开(公告)号：US20220108717A1
公开(公告)日：2022-04-07
申请号：US17062293
申请日：2020-10-02
Applicant: Seagate Technology LLC
Inventor： Hassene Atitallah , Razman Zambri
IPC: G11B5/48
Abstract: A head stack assembly for a hard disk drive includes a head gimbal assembly. The head gimbal assembly includes a slider, a plurality of microactuators, and a microactuator controller. The slider includes active components which are configured to perform drive operations in response to receiving control signals from a drive controller. The microactuators are configured to adjust the position of the slider relative to a magnetic disk during drive operations. The microactuator controller is configured to selectively couple the microactuators to a microactuator power source based on the control signals.
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公开(公告)号：US11037589B1
公开(公告)日：2021-06-15
申请号：US16888034
申请日：2020-05-29
Applicant: Seagate Technology LLC
Inventor： Rohit Deokar , Razman Zambri
IPC: G11B5/48
Abstract: A head gimbal assembly for a hard disk drive includes a slider, a load beam, a gimbal, and a flexure. The gimbal is disposed between the load beam and the slider. The gimbal is configured to provide motive support to the slider as the slider moves in proximity to a media surface. The flexure is disposed between the gimbal and the slider. The flexure includes an electrical trace ribbon configured to provide electrical signal pathways to and from active components of the head gimbal assembly.
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Patent Agency Ranking
公开(公告)号：US10957350B1
公开(公告)日：2021-03-23
申请号：US16887447
申请日：2020-05-29
Applicant: Seagate Technology LLC
Inventor： Rohit Deokar , Razman Zambri , Gary Berscheit
Abstract: A head gimbal assembly for supporting a disk drive includes a slider, a load beam, a ring gimbal affixed to the load beam, a plurality of microactuators, and a flexure. The flexure includes a first end extending along the load beam through a center region of a longitudinal axis of the head gimbal assembly and second end that includes a plurality of bond pads electrically coupled to the slider. The flexure includes a plurality of support features. Each support feature of the plurality of support features spans a respective microactuator of the plurality of microactuators. Each support feature includes a support protrusion and a support base. Each support protrusion is coupled to the ring gimbal at a distal side of the respective microactuator and each support base is coupled to the flex circuit on a proximal side of the respective microactuator.
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公开(公告)号：US10418055B1
公开(公告)日：2019-09-17
申请号：US15963501
申请日：2018-04-26
Applicant: Seagate Technology LLC
Inventor： Taiho Yeom , Razman Zambri , Ravishankar Shivarama , Bradley Jay Ver Meer
Abstract: A head suspension assembly for supporting a read/write head of a disk drive located on a rotatable drive actuator arm is disclosed. The head suspension assembly includes a baseplate end proximate to and operatively connected to a first microactuator pair, the first microactuator pair communicatively coupled to a controller. The head suspension assembly also includes a load beam movably connecting the first microactuator pair to a second microactuator pair. The head suspension assembly also includes a head transducer end proximate to and operatively connected to the second microactuator pair, the second microactuator pair communicatively coupled to the controller. The read/write head is located proximate to the head transducer end, the read/write head being flexibly connected to the load beam, and the controller is configured to selectably transmit control signals to the first and second microactuator pairs in order to improve tracking control of the read/write head.
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公开(公告)号：US09253885B2
公开(公告)日：2016-02-02
申请号：US14594606
申请日：2015-01-12
Applicant: Seagate Technology LLC
CPC classification number: H05K1/111 , G11B5/484 , G11B5/4853 , G11B5/486 , G11B5/4866 , G11B13/04 , H05K1/0277 , H05K1/0298 , H05K1/115
Abstract: A flex circuit including a multiple layer structure is disclosed. The multiple layered structure includes a first or top layer and a second or base layer. Top traces and bond pads are fabricated on the top or obverse layer and interlayer traces and bond pads are fabricated between the first and second layers to provide an electrical interconnect to electrical components on a head assembly. In an illustrated embodiment, the flex circuit includes portions including the first or base layer and the second or top layer and one or more reduced thickness portion including the first or base layer and not the second layer. In one embodiment, the gimbal portion of the flex circuit includes the first layer and not the second layer of the multiple layer structure and in another embodiment a bending portion of the flex circuit includes the first base layer and not the second layer of the multiple layered structure to provide a reduced thickness to facilitate bending, for example in a micro-actuation region of the load beam.
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公开(公告)号：US08780503B2
公开(公告)日：2014-07-15
申请号：US13652907
申请日：2012-10-16
Applicant: Seagate Technology LLC
Inventor： John S. Wright , Razman Zambri
IPC: G11B5/48
CPC classification number: H01L41/083 , G11B5/483 , G11B5/4873 , G11B5/5552 , H01L41/0946
Abstract: Apparatus for positioning a control object, such as a microactuator used to position a read/write transducer adjacent a data storage medium. In accordance with some embodiments, a piezoelectric transducer (PZT) element is adapted to induce rotational displacement of the control object in a bending mode of operation. The PZT element has a plurality of piezoelectric material layers and a plurality of electrically conductive layers interposed between the piezoelectric material layers. The piezoelectric material layers include a first subset of active layers and at least one non-active layer.
Abstract translation: 用于定位控制对象的装置，例如用于将读/写换能器定位在数据存储介质附近的微致动器。 根据一些实施例，压电换能器（PZT）元件适于在弯曲操作模式下引起控制对象的旋转位移。 PZT元件具有多个压电材料层和介于压电材料层之间的多个导电层。 压电材料层包括有源层的第一子集和至少一个非有源层。
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公开(公告)号：US20220415347A1
公开(公告)日：2022-12-29
申请号：US17362865
申请日：2021-06-29
Applicant: Seagate Technology LLC
Inventor： Rohit Deokar , Razman Zambri
IPC: G11B5/48
Abstract: A method for manufacturing a suspension assembly for a hard disk drive. The method includes applying a resist mask pattern onto a coupler piece, where the resist mask pattern defines an aperture in the coupler piece. The aperture has dimensions large enough to enable a plurality of actuators to fit within said aperture. The method includes etching the coupler piece into the shape of the resist mask and removing the resist mask after patterning.
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