Semiconductor device performing refresh operation

摘要

Disclosed herein is a device that includes a first semiconductor chip. The first semiconductor chip includes a first data storage area storing data, a first refresh circuit repeating a first refresh operation on the first data storage area to make the first data storage area retain the data, a first terminal supplied with a first control signal from outside of the first semiconductor chip, and a first control circuit coupled between the first terminal and the first refresh circuit to control a repetition cycle of the first refresh operation in response to the first control signal.

主权项

1. A device comprising:
a first semiconductor chip; a second semiconductor chip stacked on the first semiconductor chip, the second semiconductor chip including a first plurality of through electrodes penetrating therethrough; and a refresh control unit which controls a cycle of a refresh for the second semiconductor chip in response to a first temperature signal received via at least one through electrode of the first plurality of through electrodes; wherein the first semiconductor chip includes a first temperature sensor outputting the first temperature signal, and the first temperature signal takes a first value when a temperature of the first semiconductor chip is equal to or higher than a first temperature and a second value when the temperature of the first semiconductor chip is lower than the first temperature, and wherein the refresh control unit controls the cycle to a first cycle when the first temperature signal takes the first value and to a second cycle that is greater than the first cycle when the first temperature signal takes the second value.