公开(公告)号：US20250029646A1

公开(公告)日：2025-01-23

申请号：US18907237

申请日：2024-10-04

Applicant: Seagate Technology LLC

Inventor： Jon D. TRANTHAM ,  Praveeen VIRARAGHAVAN ,  John W. DYKES ,  Ian J. GILBERT ,  Sangita Shreedharan KALARICKAL ,  Matthew J. TOTIN ,  Mohamad EL-BATAL ,  Darshana H. MEHTA

IPC: G11C11/22 ,  G11C7/10 ,  G11C17/12

Abstract: A system on chip (SOC) integrated circuit device having an incorporated ferroelectric memory configured to be selectively refreshed, or not, depending on different operational modes. The ferroelectric memory is formed of an array of ferroelectric memory elements (FMEs) characterized as non-volatile, read-destructive semiconductor memory cells each having at least one ferroelectric layer. A read/write circuit writes data to the FMEs and subsequently reads back data from the FMEs responsive to respective write and read signals supplied by a processor circuit of the SOC. A refresh circuit is selectively enabled in a first normal mode to refresh the FMEs after a read operation, and is selectively disabled in a second exception mode so that the FMEs are not refreshed after a read operation.

公开(公告)号：US20250104793A1

公开(公告)日：2025-03-27

申请号：US18907337

申请日：2024-10-04

Applicant: Seagate Technology LLC

Inventor： Jon D. TRANTHAM ,  Praveeen VIRARAGHAVAN ,  John W. DYKES ,  Ian J. GILBERT ,  Sangita Shreedharan KALARICKAL ,  Matthew J. TOTIN ,  Mohamad EL-BATAL ,  Darshana H. MEHTA

IPC: G11C29/44 ,  G11C16/34 ,  G11C29/12 ,  G11C29/46

Abstract: A data storage system can utilize one or more data storage devices that employ a solid-state non-volatile read destructive memory consisting of ferroelectric memory cells. A leveling strategy can be generated by a wear module connected to the memory with the leveling strategy prescribing a plurality of memory cell operating parameters associated with different amounts of cell wear. The wear module may monitor activity of a memory cell and detect an amount of wear in the memory cell as a result of the monitored activity, which can prompt changing a default set of operating parameters for the memory cell to a first stage of operating parameters, as prescribed by the leveling strategy, in response to the detected amount of wear.

公开(公告)号：US20240070070A1

公开(公告)日：2024-02-29

申请号：US18503118

申请日：2023-11-06

Applicant: Seagate Technology LLC

Inventor： Jon D. TRANTHAM ,  Praveen VIRARAGHAVAN ,  John W. DYKES ,  Ian J. GILBERT ,  Sangita Shreedharan KALARICKAL ,  Matthew J. TOTIN ,  Mohamad EL-BATAL ,  Darshana H. MEHTA

IPC: G06F12/0802 ,  G06F3/06

CPC classification number: G06F12/0802 ,  G06F3/0604 ,  G06F3/0655 ,  G06F3/0679 ,  G06F2212/60

Abstract: Method and apparatus for managing a front-end cache formed of ferroelectric memory element (FME) cells. Prior to storage of writeback data associated with a pending write command from a client device, an intelligent cache manager circuit forwards a first status value indicative that sufficient capacity is available in the front-end cache for the writeback data. Non-requested speculative readback data previously transferred to the front-end cache from the main NVM memory store may be jettisoned to accommodate the writeback data. A second status value may be supplied to the client device if insufficient capacity is available to store the writeback data in the front-end cache, and a different, non-FME based cache may be used in such case. Mode select inputs can be supplied by the client device specify a particular quality of service level for the front-end cache, enabling selection of suitable writeback and speculative readback data processing strategies.

公开(公告)号：US20230301115A1

公开(公告)日：2023-09-21

申请号：US18183880

申请日：2023-03-14

Applicant: Seagate Technology LLC

Inventor： Riyan Alex MENDONSA ,  Brett R. HERDENDORF ,  Krishnan SUBRAMANIAN ,  Mark T. KIEF ,  Jon D. TRANTHAM

IPC: H10B61/00 ,  H10N50/10 ,  H10N50/01

CPC classification number: H10B61/00 ,  H10N50/10 ,  H10N50/01

Abstract: The described technology provides implementations of a mechanical magnetoresistance device. The mechanical magnetoresistance device includes a first magnetoresistive well, the magnetoresistive well including at least one magnetic element and a suspension substrate, wherein the at least one magnetic element is suspended in the suspension substrate. The mechanical magnetoresistance device further includes a first conductive element in electronic communication with a first portion of the first magnetoresistive well, a second conductive element in electronic communication with a different second portion of the first magnetoresistive well, wherein the first conductive element is in electronic communication with the second conductive element via the first magnetoresistive well.

公开(公告)号：US20240220358A1

公开(公告)日：2024-07-04

申请号：US18400782

申请日：2023-12-29

Applicant: Seagate Technology LLC

Inventor： Mohamad EL-BATAL ,  Jon D. TRANTHAM ,  David Jerome ALLEN ,  Matthew Bruce LOVELL ,  Kevin Lee VAN PELT

IPC: G06F11/10

CPC classification number: G06F11/1044

Abstract: The technology disclosed herein provides a memory blade including a plurality of fabric switches configured to receive commands from a plurality of host clients, an address decoder and tracker circuit communicatively connected to the fabric switches and configured to determine the source of commands received at the fabric switches an aggregator crossbar configured to provide bandwidth aggregation between host clients and a plurality of memory modules; and a buffer module configured to couple the commands from the plurality of host clients with the plurality of memory modules.

公开(公告)号：US20210326062A1

公开(公告)日：2021-10-21

申请号：US17360760

申请日：2021-06-28

Applicant: Seagate Technology LLC

Inventor： Riyan Alex MENDONSA ,  Jon D. TRANTHAM ,  Peng PENG ,  Brett R. HERDENDORF ,  Krishnan SUBRAMANIAN

IPC: G06F3/06 ,  G11B5/455 ,  G11B33/12

Abstract: A storage system includes a media player including a preamplifier that is adapted to provide data access to a storage cartridge lacking an independent read/write preamplifier. The media player couples to the storage cartridges across an interconnect, and the storage cartridge is adapted to perform data access operations responsive to signals received from the media player through the interconnect.

公开(公告)号：US20210157515A1

公开(公告)日：2021-05-27

申请号：US16696793

申请日：2019-11-26

Applicant: Seagate Technology LLC

Inventor： Riyan Alex MENDONSA ,  Jon D. TRANTHAM ,  Peng PENG ,  Brett R. HERDENDORF ,  Krishnan SUBRAMANIAN

IPC: G06F3/06 ,  G11B5/455

Abstract: A storage system includes a media player including a preamplifier that is adapted to provide data access to a storage cartridge lacking an independent read/write preamplifier. The media player couples to the storage cartridges across an interconnect, and the storage cartridge is adapted perform data access operations responsive to signals received from the media player through the interconnect.