US 12,431,182 B2
Row hammer mitigation
Thomas Vogelsang, Mountain View, CA (US); and Torsten Partsch, San Jose, CA (US)
Assigned to Rambus Inc., San Jose, CA (US)
Filed by Rambus Inc., San Jose, CA (US)
Filed on Jun. 6, 2023, as Appl. No. 18/206,241.
Claims priority of provisional application 63/349,739, filed on Jun. 7, 2022.
Prior Publication US 2023/0395118 A1, Dec. 7, 2023
Int. Cl. G11C 11/406 (2006.01); G11C 11/4078 (2006.01)
CPC G11C 11/40615 (2013.01) [G11C 11/40622 (2013.01); G11C 11/4078 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A memory device, comprising:
an array of memory cells having a plurality of wordlines, the array of memory cells arranged in a first dimensional direction and a second dimensional direction that is orthogonal to the first dimensional direction; and
counter circuitry disposed underneath the array of memory cells in a third dimensional direction that is orthogonal to the first dimensional direction and the second dimensional direction, the counter circuitry comprising a plurality of counters each corresponding to a respective one of the plurality of wordlines, where at least one of the plurality of counters is to be updated in response to each row activation.