Patent ID: 9613678
Date: 2017-04-04
CPC Classifications: G05F,G11C,H01L

Claim:
1. A multichip package comprising: a master chip mounted on a substrate, configured to receive an external signal through the substrate, and including a master region and a slave region; a plurality of slave chips stacked on the master chip, each of the slave chips including a required driving region and a non-required driving region; and a voltage providing unit configured to provide voltages to the master region and the slave region of the master chip and the required driving regions and the non-required driving regions, wherein the voltage providing unit is configured to provide a first internal voltage to the master region of the master chip and a second internal voltage having the same level as the first internal voltage to the slave region of the master chip, and provide the first internal voltage to the required driving regions and the second internal voltage smaller than the first internal voltage to the non-required driving regions.