公开(公告)号：US20200383203A1

公开(公告)日：2020-12-03

申请号：US16424270

申请日：2019-05-28

Applicant: Seagate Technology LLC

Inventor： Michael Richard Fabry ,  William Bradford Green

IPC: H05K1/02 ,  G01R31/28 ,  H05K1/11 ,  H05K3/24

Abstract: A printed circuit board includes a substrate and at least one electrical circuit provided at least partially on a surface layer of the printed circuit board. The electrical circuit includes an electrical trace that is in electrical connection with a test pad provided for accessibility on the surface layer, the test pad being sized and shaped for probing to test an aspect of the circuit, the test pad having a conductive probe surface that is structured to provide at least one vertical surface that extends from the probe surface toward the surface layer and thus providing an edge between the vertical surface and the probe surface, the probe surface having a coating of a material to protect the conductive probe surface from corrosion.

公开(公告)号：US20200379903A1

公开(公告)日：2020-12-03

申请号：US16947804

申请日：2020-08-18

Applicant: Seagate Technology LLC

Inventor： Stephen H. Perlmutter ,  Stacey Secatch ,  Andrew Louder

IPC: G06F12/02 ,  G06F3/06 ,  G06F11/10 ,  G11C5/06

Abstract: Apparatus and method for managing a non-volatile memory (NVM) such as a flash memory in a solid-state drive (SSD). In some embodiments, the NVM is arranged as a plurality of semiconductor memory dies coupled to a controller circuit using a plurality of channels. The controller circuit divides the plurality of dies into a succession of garbage collection units (GCUs). Each GCU is independently erasable and allocatable for storage of user data. The GCUs are staggered so that each GCU is formed from a different subset of the dies in the NVM. In further embodiments, the dies are arranged into NVM sets in accordance with the NVMe (Non-Volatile Memory Express) specification with each NVM set addressable by a different user for storage of data in a separate set of staggered GCUs.

公开(公告)号：US20200377939A1

公开(公告)日：2020-12-03

申请号：US16909827

申请日：2020-06-23

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Kim Yang Lee ,  Thomas Young Chang ,  David S. Kuo ,  ShuaiGang Xiao ,  Xiaomin Yang ,  Koichi Wago

IPC: C12Q1/6869 ,  G01N27/327 ,  B81C1/00 ,  G01N27/447 ,  B01L3/00

Abstract: A DNA sequencing device and related methods, wherein the device includes a substrate, a nanochannel formed in the substrate, a first electrode positioned on a first side of the nanochannel, and a second electrode. The second electrode is positioned on a second side of the nanochannel opposite the first electrode and is spaced apart from the first electrode to form an electrode gap that is exposed in the nanochannel. At least a portion of first electrode is movable relative to the second electrode to decrease a size of the electrode gap.

公开(公告)号：US10854240B1

公开(公告)日：2020-12-01

申请号：US15712736

申请日：2017-09-22

Applicant: Seagate Technology LLC

Inventor： Binh Dinh Tran ,  Phillip Andrew Grothe

IPC: B08B7/00 ,  G11B23/50

Abstract: A method for cleaning magnetic sliders. One embodiment of the method includes dislodging particulate debris from a surface of a magnetic slider by contacting the surface of the slider with an oscillating brush, enveloping the dislodged particulate debris in a foam, and removing the enveloped particulate debris by removing the foam from the magnetic slider.

公开(公告)号：US10854235B2

公开(公告)日：2020-12-01

申请号：US15853286

申请日：2017-12-22

Applicant: Seagate Technology LLC

Inventor： Samuel Lewis Tanaka

IPC: G11B5/84 ,  B33Y10/00 ,  B33Y80/00 ,  B29C64/153 ,  G11B5/00

Abstract: An apparatus includes an electrode and a first channel segment within the electrode. A second channel segment is within the electrode, wherein the second channel segment is parallel to the first channel segment. A third channel segment is within the electrode. The third channel segment connects the first channel segment and the second channel segment, and the third channel segment includes a continuously smooth radial bend. A heating element is attached to the electrode.

公开(公告)号：US10854224B1

公开(公告)日：2020-12-01

申请号：US16006112

申请日：2018-06-12

Applicant: Seagate Technology LLC

Inventor： John Charles Duda ,  Vasudevan Ramaswamy

IPC: G11B5/48 ,  G11B5/31 ,  G11B5/11 ,  G11B5/60 ,  G11B5/00

Abstract: An apparatus comprising a slider is configured for heat-assisted magnetic recording. The slider comprises a media-facing surface. One or more reader elements are positioned in a reader region of the slider, and the one or more reader elements have an average first elevation at the media-facing surface. One or more writer elements are positioned in a writer region of the slider, and the one or more writer elements have an average second elevation at the media-facing surface. The average second elevation is less than the average first elevation.

公开(公告)号：US20200371215A1

公开(公告)日：2020-11-26

申请号：US16654817

申请日：2019-10-16

Applicant: Seagate Technology LLC

Inventor： Aditya Jain ,  Zoran Jandric ,  Krishnan Subramanian

IPC: G01S7/481 ,  G01S17/06 ,  G02F1/29

Abstract: A device includes a substrate an array of disk-shaped structures arranged above the substrate. Each disk-shaped structure includes an aperture filled with an optoelectrical material. A method includes passing a light beam through a metasurface. The method also includes varying voltage applied to the metasurface to change a phase of the light beam to steer the light beam in a two-dimensional pattern.

公开(公告)号：US10832704B2

公开(公告)日：2020-11-10

申请号：US16716836

申请日：2019-12-17

Applicant: Seagate Technology LLC

Inventor： Drew Michael Mader

IPC: G11B11/105 ,  G11B5/012 ,  G11B13/04 ,  G11B5/00 ,  G11B7/1267 ,  G11B7/1263 ,  G11B7/126

Abstract: A method includes generating, during manufacture of a heat-assisted magnetic recording (HAMR) disk drive, a temperature compensation equation for a compensation factor using initial operating currents supplied to a laser diode of the disk drive at different initial operating temperatures and an efficiency value based on the initial operating temperatures. The operating currents are representative of currents for recording data to or erasing data from a magnetic recording medium. The temperature compensation equation is stored in the disk drive. A subsequent efficiency value is determined based on at least one of the initial operating temperatures and an operating temperature differing from the initial operating temperatures. An updated compensation factor at the operating temperature is determined during field operation using the temperature compensation equation and the subsequent efficiency value. An updated operating current is calculated using the updated compensation factor and the operating temperature. A current supplied to the laser diode for a subsequent write operation is adjusted to the updated operating current.

公开(公告)号：US10819944B2

公开(公告)日：2020-10-27

申请号：US15819899

申请日：2017-11-21

Applicant: Seagate Technology LLC

Inventor： Chandra Shaker Buddhavaram ,  Jean-Pierre Ruster

IPC: H04N5/77 ,  B01D45/08 ,  B01D45/16 ,  B01D45/12 ,  A47L9/16 ,  B01D17/04 ,  B01D21/00 ,  H04W4/80 ,  B01D50/00 ,  F01M13/04

Abstract: Systems and methods are disclosed that capture video in mobile applications and automatically archive the captured videos using short-range communications with a network storage device. In various embodiments, the archival is triggered by proximity to the wireless network device. In various embodiments, other triggers, such as those provided by location-based services are used to initiate archival via a wireless protocol.

公开(公告)号：US20200333969A1

公开(公告)日：2020-10-22

申请号：US16923655

申请日：2020-07-08

Applicant: Seagate Technology LLC

Inventor： Earl T. Cohen

IPC: G06F3/06 ,  G06F12/02 ,  G06F12/1009

Abstract: A method includes the steps of storing a logical page (Lpage) identification header in each starting read unit of a non-volatile memory (NVM), a starting read unit defined as a first read unit in an Lpage, the Lpage comprising a plurality of contiguous sectors of data present in the NVM; reading a table with an address mapping function of a storage controller in communication with the NVM; and responsive to the step of reading the table, referencing an Lpage by a read unit address. A size of the table is thereby smaller than a size of a conventional table that must store a byte address of every read unit in the NVM, the smaller size of the table resulting in greater efficiency in reading the table over reading the conventional table.