公开(公告)号：US11281578B2

公开(公告)日：2022-03-22

申请号：US16995356

申请日：2020-08-17

Applicant: Micron Technology, Inc.

Inventor： Aparna U. Limaye ,  Tracy D. Evans ,  Tomoko Ogura Iwasaki ,  Avani F. Trivedi ,  Jianmin Huang

IPC: G06F12/02 ,  G06F12/0882 ,  G06F1/3212 ,  G06F11/30 ,  G06F11/07 ,  G06F12/0831

Abstract: Systems, apparatuses, and methods related to media management, including “garbage collection,” in memory or storage systems or sub-systems, such as solid state drives, are described. For example, a battery state associated with the memory system or sub-system may be used as an indicator or basis for managing a garbage collection operation on a data block. A controller or the system or sub-system may determine that a battery state or condition satisfies a criterion. Based on determining that the criterion is satisfied the, the garbage collection operation may be postponed until the battery state changes to satisfy a different battery condition.

公开(公告)号：US20210202017A1

公开(公告)日：2021-07-01

申请号：US17200959

申请日：2021-03-15

Applicant: MICRON TECHNOLOGY, INC.

Inventor： Avani F. Trivedi ,  Tracy D. Evans ,  Carla L. Christensen ,  Tomoko Ogura Iwasaki ,  Aparna U. Limaye

IPC: G11C16/30 ,  G06F13/16 ,  G11C16/10

Abstract: Memories having a first pool of memory cells having a first storage density and a second pool of memory cells having a second storage density greater than the first storage density, and a controller configured to cause the memory to determine whether a value of an indication of available power of a power supply for the memory is less than a threshold, and in response to determining that the value of the indication of available power is less than the threshold, increase a size of the first pool of memory cells, limit programming of data received by the memory to the first pool of memory cells, and cease movement of data from the first pool of memory cells to the second pool of memory cells, as well as apparatus including similar memories.

公开(公告)号：US20210064265A1

公开(公告)日：2021-03-04

申请号：US16995345

申请日：2020-08-17

Applicant: Micron Technology, Inc.

Inventor： Jianmin Huang ,  Aparna U. Limaye ,  Avani F. Trivedi ,  Tomoko Ogura Iwasaki ,  Tracy D. Evans

IPC: G06F3/06 ,  G06F12/10 ,  G11C16/24 ,  G11C16/34

Abstract: Systems, apparatuses, and methods related to media management, including “garbage collection,” in memory or storage systems or sub-systems, such as solid state drives, are described. For example, a criticality value can be determined and used as a basis for managing a garbage collection operation on a data block. A controller or the system or sub-system may determine that a criticality value associated with performing a garbage collection operation satisfies a condition. Based on determining that the condition is satisfied, a parameter associated with performing the garbage collection operation can be adjusted. The garbage collection operation is performed on the data block stored on the memory component using the adjusted parameter.

公开(公告)号：US20210055990A1

公开(公告)日：2021-02-25

申请号：US16995334

申请日：2020-08-17

Applicant: Micron Technology, Inc.

Inventor： Tomoko Ogura Iwasaki ,  Avani F. Trivedi ,  Jianmin Huang ,  Aparna U. Limaye ,  Tracy D. Evans

IPC: G06F11/10 ,  G06F11/07 ,  G06F11/30 ,  G06F11/20 ,  G06F12/02

Abstract: Systems, apparatuses, and methods related to media management, including “garbage collection,” in memory or storage systems or sub-systems, such as solid state drives, are described. For example, a signaling can be received that indicates a request from a controller to migrate valid data from a first data block to a second data block. For example, the first data block can be a data block of a plurality of memory cells configured as single-level-cell (SLC) memory. The second data block can be configured as multi-level-cell (MLC) memory. The data migration operation can include an error control operation that is performed using the memory component, the error control operation excluding transferring the data to the controller. The data can be migrated from the first data block configured as SLC memory to the second data block configured as MLC memory after the error control operation is performed using the memory component.

公开(公告)号：US20210055878A1

公开(公告)日：2021-02-25

申请号：US16947794

申请日：2020-08-17

Applicant: Micron Technology, Inc.

Inventor： Tomoko Ogura Iwasaki ,  Avani F. Trivedi ,  Aparna U. Limaye ,  Jianmin Huang ,  Tracy D. Evans

IPC: G06F3/06 ,  G06F12/10 ,  G06F13/16

Abstract: Systems, apparatuses, and methods related to data compaction in memory or storage systems or sub-systems, such as solid state drives, are described. For example, one or more memory pages storing valid data can be identified from a first data block in a plane of a memory component and copied to a page buffer corresponding to the plane. A controller of the system or sub-system can determine whether the plane of the memory component has another data block with capacity to store the one or more memory pages and can copy the one or more memory pages from the page buffer either to the other data block or to a different data block in a different plane of the memory component.

公开(公告)号：US10891063B2

公开(公告)日：2021-01-12

申请号：US16202219

申请日：2018-11-28

Applicant: MICRON TECHNOLOGY, INC.

Inventor： Carla L. Christensen ,  Avani F. Trivedi ,  Tracy D. Evans

IPC: G06F3/06 ,  G11C16/04 ,  G11C11/56 ,  G11C16/08

Abstract: Methods of operating an electronic system include allocating a group of memory cells of a plurality of groups of memory cells having a particular rank of a plurality of ranks for storing data of a particular data level of a plurality of data levels, determining a need for an additional group of memory cells for storing data of the particular data level, moving or discarding data from a different group of memory cells storing data of a different data level of the plurality of data levels in response to determining the need for the additional group of memory cells for storing data of the particular data level, and allocating the different group of memory cells for storing data of the particular data level.