Patent ID: 9734887
Date: 2017-08-15
CPC Classifications: G11C

Claim:
1. A method of per-die based memory refresh control in a hybrid memory cube (HMC) of a computer system, the method comprising: reading a plurality of sensor values from a plurality of sensors located on a plurality of memory dies in the HMC, each of the plurality of sensors located on one of the plurality of memory dies, the HMC comprising a memory vault that includes memory locations that span the plurality of memory dies and a vault controller that is configured to apply a common refresh rate to all of the memory locations in the vault; determining that one of the plurality of sensor values from a sensor located on one of the plurality of memory dies has exceeded a threshold value; based on the determining and on the one of the plurality of sensor values, calculating a die refresh rate for the memory locations on the one of the plurality of memory dies; and reconfiguring the vault controller to apply the calculated die refresh rate to the memory locations in the vault that are located on the one of the plurality of memory dies, wherein the calculated die refresh rate is different than an other refresh rate being applied to memory locations in the vault that are located on an other one of the plurality of memory dies.