Samsung Electronics Co., Ltd.

Hynix Semiconductor Inc.

Yonsei University

Seung-Han Woo

Reum Oh

Hae-Suk Lee

Seong-Ook Jung

So-Young Kim

Jin-Seong Park

Haesuk Lee

Kwang-Seok Kim

Dong-Hoon Jung

Kyung-Ho Ryu

A stacked semiconductor device includes a plurality of semiconductor dies stacked in a first direction, M data paths electrically connecting the plurality of semiconductor dies, one data path including one or more through-silicon vias, where M is a positive integer, a transmission circuit including M serialization units configured to serialize P transmission signals to M serial signals and output the M serial signals to the M data paths, respectively, where P is a positive integer greater than M and a reception circuit including M parallelization units configured to receive the M serial signals from the M data paths and parallelize the M serial signals to P reception signals corresponding to the P transmission signals. The number of the through-silicon vias is reduced by serializing the transmission signals, transferring the serialized signals through the smaller number of data paths between the stacked semiconductor dies and then parallelizing the transferred signals.

Stacked semiconductor device, system including the same and method of transferring signals in the same

A stacked semiconductor device includes a plurality of semiconductor dies stacked in a vertical direction, first and second signal paths, a transmission unit and a reception unit. The first and second signal paths electrically connect the plurality of semiconductor dies, where each of the first signal path and the second signal path includes at least one through-substrate via. The transmission unit generates a first driving signal and a second driving signal in synchronization with transitioning timing of a transmission signal to output the first driving signal to the first signal path and output the second driving signal to the second signal path. The reception unit receives a first attenuated signal corresponding to the first driving signal from the first signal path and receives a second attenuated signal corresponding to the second driving signal from the second signal path to generate a reception signal corresponding to the transmission signal.

Stacked semiconductor device and system including the same

A semiconductor apparatus includes two or more semiconductor chips and a tester. The two or more semiconductor chips are electrically connected through one or more through-silicon vias (TSVs). The tester is on at least one of the two or more semiconductor chips and tests the state of at least one TSV based on an output signal of the TSV. The TSV is selected as a signal transmission TSV based on the state of the TSV.

Semiconductor apparatus, stack semiconductor apparatus, and test method of the stack semiconductor apparatus

A temperature sensing circuit includes a signal generation unit including a delay line and generating a source signal with a pulse width corresponding to a delay value of the delay line, a pulse width expansion unit configured to generate a comparison signal by expanding a pulse width of the source signal, and a change detection unit configured to sense a temperature change using a difference between the pulse widths of the comparison signal and a reference signal.

Temperature sensing circuit

Growing community of inventors

Seoul, South Korea

Seung-Han Woo