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US 2016/0259723 A1Published application
Semiconductor device and operating method thereof
AssigneesSK hynix Inc., Industry-University Cooperation Foundation Hanyang University
InventorsTae-Hwa LEE, Yoon-Jang JOE, Jae-Hyuk CHA
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Abstract
A semiconductor device includes a mapping table that stores a corresponding relation between a logical address defined on a basis of regions and a physical address defined on a basis of extents, wherein one or more extents are dynamically allocated to one region.
Claims15
A semiconductor device comprising:
- a mapping table suitable for storing a corresponding relation between a logical address defined on a basis of regions and a physical address defined on a basis of extents, wherein one or more extents are dynamically allocated to one region.
An operating method of a semiconductor device, comprising:
- storing a corresponding relation between a logical address including a region number and a region offset and a physical address including an extent number and an extent offset in first and second tables, wherein the first table stores an extent number index and the extent offset in a first index corresponding to the logical address, and the second table stores the extent number in a second index calculated by the region number and the extent number index;
- checking a physical address corresponding to a read-requested logical address by referring to the first table and the second table in response to a read request;
- and
- updating the first table or the second table in response to a write request.
1 more element
The operating method according to claim further comprising:
- performing garbage collection in the extent corresponding to the region number when there are no extra extents allocable to the region.
Dependencies are inferred from the claim text.