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US 7,606,674 B2Granted
On die thermal sensor
AssigneeHynix Semiconductor Inc.
InventorJong-Ho Jung
Life of this patent
Estimating the term…
Abstract
An on die thermal sensor includes a bandgap unit for generating a first voltage containing temperature information, a tracking unit for tracking a voltage level of the first voltage, and a low power control unit for generating a tracking enable signal for enabling the tracking unit and disabling the tracking unit after a minimum tracking operation time of the tracking unit elapses.
Claims18
An on die thermal sensor (ODTS), comprising:
- a bandgap unit configured to generate a first voltage including temperature information in response to a bandgap enable signal;
- a tracking unit configured to track a voltage level of the first voltage generated from the bandgap unit in response to enabling of a tracking enable signal;
- and
- a low power control unit configured to generate a pre-tracking enable signal and to generate the tracking enable signal in response to the generated pre-tracking enable signal, the low power control unit is configured to outputs the bandgap enable signal to the bandgap unit,
- wherein the tracking enable signal is configured to be disabled after a minimum tracking operation time of the tracking unit elapses.
2 more elements
An on die thermal sensor (ODTS), comprising:
- a bandgap unit configured to detect a temperature of a semiconductor device to generate a first voltage including temperature information in response to a bandgap enable signal;
- a tracking unit configured to generate a temperature control code by comparing the first voltage and a second voltage in response to enabling of a tracking enable signal;
- a controller configured to output the bandgap enable signal to the bandgap unit and to output a pre-tracking enable signal;
- and
- a signal generator configured to output a tracking enable signal in response to the pre-tracking enable signal outputted from the controller,
- wherein the tracking enable signal is inactivated after the minimum tracking operation time of the tracking unit elapses.
3 more elements
Dependencies are inferred from the claim text.