Patent ID: 8253227
Filing Date: 2012-08-28
Classification: H01L

Abstract:
1. A semiconductor integrated circuit device comprising: a first semiconductor chip including a first internal core circuit achieving a predetermined processing function and operated at a first operating voltage, a first data transceiving circuit playing a role of interfacing with the outside, a first data transceiving terminal, and a first source voltage terminal; and a second semiconductor chip including a second internal core circuit achieving a predetermined processing function and operated at a second operating voltage, a second data transceiving circuit playing a role of interfacing with the outside, a second data transceiving terminal, and a second source voltage terminal, wherein one of the first semiconductor chip and the second semiconductor chip is stacked and mounted on the other, the first data transceiving terminal and the second data transceiving terminal are connected via a first through-via, the first source voltage terminal and the second source voltage terminal are connected via a second through-via, a source voltage lower than the first operating voltage and the second operating voltage is supplied to the second through-via, the first data transceiving circuit and the second data transceiving circuit perform data transmission and reception via the first through-via using the source voltage, and a distance between the first source voltage terminal and the first data transceiving terminal is equal to a distance between the second source voltage terminal and the second data transceiving terminal.