| 摘要 |
The present invention includes a first chip which includes a refresh generating unit which generates a refresh signal by receiving an external command, a first delay unit which receives and delays the refresh signal through a first penetration electrode, a first selection unit which outputs the output signal of the first delay unit to the first chip through a second penetration electrode in response to a first selection signal, and a second chip which performs a refresh operation by receiving the output signal of the first delay unit and includes a first core area. [Reference numerals] (110) Refresh signal generating unit; (210) First delay unit; (220) First selection unit; (230) First core area; (310) Second delay unit; (320) Second selection unit; (330) Second core area; (410) Third delay unit; (420) Third selection unit; (430) Third core area |
