US 12,283,336 B2
System for differentiated thermal throttling of memory and method of operating same
Philex Ming-Yan Fan, Hsinchu (TW); Chia-En Huang, Hsinchu (TW); Yih Wang, Hsinchu (TW); and Jonathan Tsung-Yung Chang, Hsinchu (TW)
Assigned to TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., Hsinchu (TW)
Filed by TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., Hsinchu (TW)
Filed on Feb. 13, 2024, as Appl. No. 18/439,982.
Application 18/439,982 is a continuation of application No. 17/680,044, filed on Feb. 24, 2022, granted, now 11,901,035.
Claims priority of provisional application 63/220,033, filed on Jul. 9, 2021.
Prior Publication US 2024/0185895 A1, Jun. 6, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G11C 7/04 (2006.01); G06F 1/20 (2006.01); G11C 7/22 (2006.01)
CPC G11C 7/04 (2013.01) [G06F 1/206 (2013.01); G11C 7/22 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for controlling temperatures in a memory, the system comprising:
a high bandwidth memory (HBM) including core dies, the HBM being arranged into portions, each of the portions including memory cells, the HBM further including:
a first sensing unit configured to generate one or more first environmental signals corresponding to at least a first transistor in a corresponding at least a first one of the memory cells in a first one of the portions; and
a second sensing unit configured to generate one or more second environmental signals corresponding to at least a second transistor in a corresponding at least a second one of the memory cells in a second one of the portions; and
a differentiated dynamic voltage and frequency scaling (DDVFS) device configured to perform the following:
for a first set of one or more of the memory cells in the first portion which includes the first memory cell, controlling a temperature of the first set based on the one or more first environmental signals; and
for a second set of one or more of the memory cells in the second portion which includes the second memory cell, controlling a temperature of the second set based on the one or more second environmental signals.