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公开(公告)号：US20220093136A1
公开(公告)日：2022-03-24
申请号：US17543010
申请日：2021-12-06
Applicant: Seagate Technology LLC
Inventor： Sungkwon Choi , Stefan A. Weissner , Razman Zambri
Abstract: Described are clamps useful for temporarily holding a slider of a hard disk drive in a test socket for dynamic electrical testing of the slider, as well as related assemblies that include the test socket, a head-gimbal-assembly, a testing assembly, and related methods of use.
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公开(公告)号：US20180240480A1
公开(公告)日：2018-08-23
申请号：US15903937
申请日：2018-02-23
Applicant: Seagate Technology LLC
Inventor： Razman Zambri , Stefan A. Weissner , Rohit Deokar , Brett R. Herdendorf
IPC: G11B5/48
CPC classification number: G11B5/484 , G11B5/4555 , G11B5/4826
Abstract: An apparatus includes a slider test socket. The slider test socket includes a clamp, which includes a body, a handle having an opening, and a plurality of arms that extend between the body at a first end of the clamp and the handle at a second end of the clamp.
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公开(公告)号：US12014754B2
公开(公告)日：2024-06-18
申请号：US18203627
申请日：2023-05-30
Applicant: Seagate Technology LLC
Inventor： Sungkwon Choi , Stefan A. Weissner , Razman Zambri
Abstract: A clamp for removably holding a slider includes a stationary frame that includes a stationary rear frame member at a rear portion of the frame, extending in a width direction, at least one spring extending in a horizontal plane, and an open space extending in a length direction and the width direction. The open space is defined in the length direction in part by a front contact surface at a forward portion of the clamp adapted to engage one end of the slider, and a rear contact surface at a rear portion of the clamp, and adapted to engage an opposite end of the slider. The spring connects the stationary frame with the front contact surface such that with deflection of the spring the front contact surface is moveable relative to the frame in a direction of a lengthwise axis of the clamp.
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公开(公告)号：US10650851B1
公开(公告)日：2020-05-12
申请号：US16263702
申请日：2019-01-31
Applicant: Seagate Technology LLC
Inventor： Hassene Ben Atitallah , Razman Zambri , Ghazaleh Haghiashtiani
Abstract: A data storage device can employ a gimbal tongue flexure suspended from a load beam with a transducing head mounted to the gimbal tongue flexure. The transducing head can be separated from a magnetic recording medium by an air bearing. At least one active or non-active damper may be positioned on a strut of the gimbal tongue flexure.
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公开(公告)号：US09953668B1
公开(公告)日：2018-04-24
申请号：US15281264
申请日：2016-09-30
Applicant: Seagate Technology LLC
Inventor： Vijay Kumar , Razman Zambri
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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Patent Agency Ranking
公开(公告)号：US20150201493A1
公开(公告)日：2015-07-16
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.
Abstract translation: 公开了一种包括多层结构的柔性电路。 多层结构包括第一或顶层和第二或基层。 顶部迹线和接合焊盘制造在顶部或正面层上，层间迹线和接合焊盘制造在第一和第二层之间，以提供与头部组件上的电气部件的电互连。 在所示的实施例中，柔性电路包括包括第一或第二层或第二层或顶层的部分和包括第一层或第二层而不是第二层的一个或多个减薄厚度部分。 在一个实施例中，柔性电路的万向节部分包括第一层而不是多层结构的第二层，在另一个实施例中，柔性电路的弯曲部分包括第一基底层而不是第二层的多层结构 结构以提供减小的厚度以便于弯曲，例如在负载梁的微致动区域中。
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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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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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