	US 12,230,311 B2
	Aliased row hammer detector
Edmund Gieske, Boise, ID (US); Cagdas Dirik, Boise, ID (US); Robert M. Walker, Boise, ID (US); Sujeet Ayyapureddi, Boise, ID (US); Niccolo Izzo, Boise, ID (US); Markus Geiger, Boise, ID (US); Yang Lu, Boise, ID (US); Ameen Akel, Boise, ID (US); Elliott C. Cooper-Balis, Boise, ID (US); and Danilo Caraccio, Boise, ID (US)
Assigned to Micron Technology, Inc., Boise, ID (US)
Filed by Micron Technology, Inc., Boise, ID (US)
Filed on Sep. 9, 2022, as Appl. No. 17/941,655.
Claims priority of provisional application 63/302,051, filed on Jan. 22, 2022.
Prior Publication US 2023/0238046 A1, Jul. 27, 2023
Int. Cl. G11C 7/00 (2006.01); G11C 11/406 (2006.01); G11C 29/52 (2006.01)

CPC G11C 11/40618 (2013.01) [G11C 11/40611 (2013.01); G11C 29/52 (2013.01)]

19 Claims

1. An apparatus, comprising:

a memory media device interface configured to connect to a memory media device;

at least one memory comprising a plurality of counters and a plurality of rows enabled for data storage in the memory media device, wherein each counter of the plurality of counters is (i) associated with a group of rows of the plurality of rows and (ii) configured to keep a count of a number of times each row within its respective group of rows of the plurality of rows has been accessed; and

a first circuit that is configured to perform operations comprising:

reading, based on a row identifier of a memory media access request, a counter in the plurality of counters;

incrementing a count value of the counter;

when the incremented count value exceeds a configured triggering threshold, triggering a response to an error in the memory media device; and

writing the incremented count value to the counter.