US 11,704,025 B2
Solid state storage device with variable logical capacity based on memory lifecycle
Niels Reimers, Meadow Vista, CA (US)
Assigned to Micron Technology, Inc., Boise, ID (US)
Filed by Micron Technology, Inc., Boise, ID (US)
Filed on Jul. 7, 2022, as Appl. No. 17/859,962.
Application 17/859,962 is a division of application No. 14/874,841, filed on Oct. 5, 2015, granted, now 11,385,797.
Prior Publication US 2022/0342560 A1, Oct. 27, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 12/00 (2006.01); G06F 3/06 (2006.01); G11C 29/00 (2006.01); G11C 16/34 (2006.01); G06F 12/06 (2006.01); G06F 12/02 (2006.01); G11C 29/04 (2006.01)
CPC G06F 3/0616 (2013.01) [G06F 3/0644 (2013.01); G06F 3/0653 (2013.01); G06F 3/0679 (2013.01); G06F 12/0246 (2013.01); G06F 12/0615 (2013.01); G11C 16/349 (2013.01); G11C 29/883 (2013.01); G06F 2212/7204 (2013.01); G11C 2029/0409 (2013.01); G11C 2029/0411 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of operating a memory device, wherein the memory device includes a main memory and a controller operably coupling the main memory to a host device, wherein the main memory includes a plurality of memory regions that collectively define a physical memory capacity, and wherein the method comprises:
advertising a first logical memory capacity to the host device, wherein the first logical memory capacity is less than the physical memory capacity;
determining that at least one of the memory regions is at or near end of life; and
in response to determining that the at least one of the memory regions is at or near end of life—
sending a notification to the host device that a logical memory capacity of the memory device will be reduced,
after sending the notification, retiring the at least one of the memory regions, and
reducing the logical memory capacity of the memory device to a second logical memory capacity that is less than the first logical memory capacity, whereby the memory device with the reduced logical capacity is recognized as a different device by the host device.