Patent ID: 11860045
Assignee: SK HYNIX INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 8:
9. A semiconductor device comprising:
a control signal generation circuit having a plurality of signal shifting stages connected in series, the control signal generation circuit configured a) to sequentially shift a single test mode signal in response to a toggling of a clock signal, and b) to sequentially generate a plurality of control signals for controlling a plurality of temperature sensing circuits, using at least one sequentially shifted test mode signal in a test mode obtained from a preceding stage of the plurality of signal shifting stages; and
the plurality of temperature sensing circuits each configured to generate temperature sensing signals based on first and second resistors, which have different resistances from each other for temperature, in response to a corresponding control signal of the plurality of control signals,
wherein each of the plurality of temperature sensing circuits comprises:
a temperature sensing unit configured to sequentially generate first and second temperature sensing signals based on the first and second resistors in response to a selection signal; and
an output unit configured to output the first and second temperature sensing signals in response to the corresponding control signal of the plurality of control signals.