-
公开(公告)号：US09886977B1
公开(公告)日：2018-02-06
申请号：US15389432
申请日：2016-12-22
发明人： Oleg Mryasov , Alan Kalitsov , Hoan Ho , Paul Dorsey , Gerardo Bertero
CPC分类号： G11B5/656 , G11B5/66 , G11B2005/0021
摘要： A recording medium having improved signal-to-noise ratio (SNR) capabilities includes dual cap layers over the recording layer, where the Curie temperature of the first cap layer over the recording layer is greater than the Curie temperature of the recording layer, and the Curie temperature of the second cap layer over the first cap layer is greater than the Curie temperature of the first cap layer. The first cap layer may be composed of a magnetically hard material, such as L10 CoPt, where the second cap layer may be composed of a magnetically soft material, such as Co. Such a medium is particularly useful in the context of heat-assisted magnetic recording (HAMR).
-
2.发明公开公开(公告)号：US20240363170A1
公开(公告)日：2024-10-31
申请号：US18363518
申请日：2023-08-01
发明人： Naoto NORIZUKI , Hiroki YABE
IPC分类号： G11C16/16 , G11C16/04 , H01L23/00 , H01L25/00 , H01L25/065 , H01L25/18 , H10B41/27 , H10B43/27 , H10B80/00
CPC分类号： G11C16/16 , G11C16/0483 , H01L24/08 , H01L24/80 , H01L25/0657 , H01L25/18 , H01L25/50 , H10B41/27 , H10B43/27 , H10B80/00 , H01L2224/08145 , H01L2224/80006 , H01L2224/80895 , H01L2224/80896 , H01L2924/1431 , H01L2924/14511
摘要： A semiconductor device includes a plurality of memory blocks and a bit-line-bias block. A source-drain erase bias voltage is applied between a source line and a bit lines through the bit-line-bias block during an erase operation.
-
公开(公告)号：US20240362370A1
公开(公告)日：2024-10-31
申请号：US18447723
申请日：2023-08-10
摘要： An access control system, data storage device, and method to enable an authorized host computing system to access replay protected memory blocks (RPMB) in a data storage device (DSD). This includes an access control system determining the host computing system to be authorized to access the DSD, and securely programming the host computing system and DSD with at least one RPMB key. The DSD is configured to authenticate, using the RPMB key, requests from the host computing device to access the protected memory blocks.
-
4.发明公开公开(公告)号：US20240362161A1
公开(公告)日：2024-10-31
申请号：US18355771
申请日：2023-07-20
发明人： Sridhar Sabesan , Dinesh Babu , Pavan Gururaj
IPC分类号： G06F12/02
CPC分类号： G06F12/023
摘要： Systems, methods, and data storage devices for redundant storage of data across namespaces with dynamic capacity allocation are described. Data storage devices may support multiple host connections to multiple namespaces allocated in their non-volatile storage medium according to a storage protocol, such as non-volatile memory express (NVMe). Each namespace may initially be allocated with an allocated capacity. For at least some of the namespaces, a portion of the allocated capacity may be allocated to a floating namespace pool. A redundant array of independent disks (RAID) configuration may be established across the namespaces for redundant storage of host data. When the fill mark for one of the namespaces reaches a flexible capacity threshold, capacity from the floating namespace pool may be dynamically allocated to that namespace and removed from the floating namespace pool.
-
5.发明公开公开(公告)号：US20240362116A1
公开(公告)日：2024-10-31
申请号：US18225803
申请日：2023-07-25
CPC分类号： G06F11/108 , G06F11/1096 , G06F12/02
摘要： A data storage device can store data and parity information for the data in its memory. In some storage methodologies, data and parity information are striped across a plurality of memory dies (e.g., in a redundant array of independent drives (RAID) configuration). That way, if one of the memory dies fails, the data or the parity information can be reconstructed from the other memory dies. These embodiments recognize that because parity information is used relatively infrequently, the parity information can be stored in locations in the memory that have a relatively-worse performance than other areas of the memory. This can increase performance of the memory in situations where the parity information does not need to be read.
-
公开(公告)号：US20240361911A1
公开(公告)日：2024-10-31
申请号：US18218876
申请日：2023-07-06
IPC分类号： G06F3/06
CPC分类号： G06F3/0613 , G06F3/0635 , G06F3/0689
摘要： During operation of a data storage device, a controller of the data storage device is configured to monitor a usage pattern of the data storage device based on commands sent by a host device. The usage pattern may reflect that the host device is primarily sending write commands or read commands. Because the host device is primarily sending one type of command, the controller may change an allocation of bandwidth/resources of the data storage device to better service the identified command type being sent by the host device. In other words, an increased amount of bandwidth/resources may be allocated to the operations/processes associated with the identified command type and the bandwidth/resources allocated to the non-identified command types may be decreased. Thus, more resources and bandwidth are dedicated to processing the identified command type.
-
7.发明公开公开(公告)号：US20240355353A1
公开(公告)日：2024-10-24
申请号：US18355133
申请日：2023-07-19
IPC分类号： G11B5/31
CPC分类号： G11B5/3116 , G11B5/3143 , G11B2005/0024
摘要： The present disclosure generally relates to a magnetic recording head for magnetic media, such as a magnetic media drive. The head has a main pole, trailing shield, leading shield, first side shield, and second side shield. One side shield is electrically connected to the trailing shield and electrically disconnected from the leading shield. The other side shield is electrically connected to the leading shield and electrically disconnected from the trailing shield. The side shields are electrically connected through a hot seed layer and/or a nonmagnetic electrically conductive layer that is electrically disconnected from the main pole. Such an arrangement results in a current path from the trailing shield, through the side shields, around the main pole, and to the leading shield, which results in reduced resistance.
-
公开(公告)号：US12125512B2
公开(公告)日：2024-10-22
申请号：US17854568
申请日：2022-06-30
发明人： Quang Le , Cherngye Hwang , Brian R. York , Randy G. Simmons , Xiaoyong Liu , Kuok San Ho , Hisashi Takano , Michael A. Gribelyuk , Xiaoyu Xu
IPC分类号： G11C11/16 , G01R33/09 , G11B5/39 , H10B61/00 , H10N50/10 , H10N50/85 , H10N52/00 , H10N52/01 , H10N52/80
CPC分类号： G11C11/161 , G11C11/1673 , G11C11/1675 , H10B61/00 , H10N50/10 , H10N50/85 , H10N52/00 , H10N52/01 , H10N52/80
摘要： The present disclosure generally relates to spin-orbit torque (SOT) magnetic tunnel junction (MTJ) devices comprising a doped bismuth antimony (BiSbE) layer having a (012) orientation. The devices may include magnetic write heads, read heads, or MRAM devices. The dopant in the BiSbE layer enhances the (012) orientation. The BiSbE layer may be formed on a texturing layer to ensure the (012) orientation, and a migration barrier may be formed over the BiSbE layer to ensure the antimony does not migrate through the structure and contaminate other layers. A buffer layer and interlayer may also be present. The buffer layer and the interlayer may each independently be a single layer of material or a multilayer of material. The buffer layer and the interlayer inhibit antimony (Sb) migration within the doped BiSbE layer and enhance uniformity of the doped BiSbE layer while further promoting the (012) orientation of the doped BiSbE layer.
-
公开(公告)号：US12125509B1
公开(公告)日：2024-10-22
申请号：US18483595
申请日：2023-10-10
发明人： John T. Contreras , Sukumar Rajauria , Rehan Zakai , Joey M. Poss , Xinzhi Xing
CPC分类号： G11B7/126 , G11B5/02 , G11B2005/0021
摘要： Various illustrative aspects are directed to a data storage device comprising a disk; a read/write head configured to read data from and write data to the disk; a laser diode configured to heat an area of the disk near the read/write head; and one or more processing devices configured to preheat the laser diode to a target temperature associated with a write operation, wherein the preheating comprises applying (e.g., using a preamplifier) at least one forward bias pulse to the laser diode, wherein a corresponding duration of the at least one forward bias pulse is shorter than a duration of a turn-on delay for the laser diode; and initiate a write operation for writing data to the disk, based at least in part on the preheating.
-
公开(公告)号：US12121896B2
公开(公告)日：2024-10-22
申请号：US17602319
申请日：2020-04-08
发明人： Yann Astier , Patrick Braganca , Juraj Topolancik
IPC分类号： B01L3/00 , G01N27/08 , G01N27/74 , G01N33/58 , C12Q1/6869
CPC分类号： B01L3/502715 , G01N27/08 , G01N27/74 , G01N33/58 , B01L2200/12 , B01L2300/0663 , B01L2300/0896 , B01L2300/12 , C12Q1/6869
摘要： Disclosed herein are apparatuses for nucleic acid sequencing, and methods of making and using such apparatuses. In some embodiments, the apparatus comprises a magnetic sensor array comprising a plurality of magnetic sensors, each of the plurality of magnetic sensors coupled to at least one address line, at least one selector element, and a fluid chamber adjacent to the magnetic sensor array, the fluid chamber having a proximal wall adjacent to the magnetic sensor array.
A method of manufacturing sequencing device comprises fabricating a first addressing line on a substrate, fabricating a plurality of magnetic sensors such that the bottom portion of each sensor is coupled to the first addressing line, depositing a dielectric material between the sensors, fabricating additional addressing lines coupled to the top portions of the sensors, and removing a portion of the dielectric material adjacent to the sensors to create a fluid chamber.
-
-
-
-
-
-
-
-
-
搜索结果
6472 条记录 (耗时 0.041 秒)
