Semiconductor system having semiconductor apparatus and method of determining delay amount using the semiconductor apparatus

A semiconductor system, comprising:

• a master chip;
• a plurality of slave chips stacked on the master chip;
• a plurality of TSVs(through silicon vias) configured to connect the master chip and the plurality of TSVs;
• and
• a signal output unit integrated in the master chip,
• wherein the master chip and the plurality of slave chips include a circuit block, respectively, and
• the signal output unit is configured to output one of an input signal which is passed through the circuit block of the master chip and an input signal which is passed through the circuit block of one of the slave chips and the TSVs formed in a corresponding slave chip, so as to determine a delay amount of the TSVs.

A method of driving a semiconductor apparatus including a master chip, a slave chip stacked on the master chip, and TSVs(through silicon vias) connecting the master chip and the slave chip, comprising:

• outputting a first input signal which passes through the TSVs and a circuit block of the slave chip;
• outputting a second input signal which passes through a circuit block of the master chip, wherein a structure of the circuit block of the master chip is same as that of the circuit block of the slave chip;
• and
• comparing the first input signal to the second input signal, to determine a delay amount of TSVs.