Semiconductor device for a system for measuring the temperature, and manufacturing method thereof
AssigneeSTMicroelectronics S.r.l.
InventorMassimo Cataldo Mazzillo
Life of this patent
Estimating the term…
Abstract
A semiconductor device for a system for measuring temperature, which includes a first UV detector and a second UV detector. The first and second UV detectors generate a first current and a second current, respectively, as a function of the irradiance in the ultraviolet band. Moreover, the first and second UV detectors have coefficients of variation of the current with temperature, at constant irradiance, that are different from one another.
Claims20
A semiconductor device for a system for measuring temperature, said device comprising a first UV detector and a second UV detector, said first and second UV detectors being configured to generate a first current and a second current, respectively, as a function of an ultraviolet irradiance;
- and wherein the first and second UV detectors have coefficients of variation of current with temperature, at constant irradiance, that are different from one another.
A system comprising:
- a semiconductor device that includes:
- a first UV detector and a second UV detector, said first and second UV detectors being configured to generate a first current and a second current, respectively, as a function of an ultraviolet irradiance;
- and wherein the first and second UV detectors have coefficients of variation of current with temperature, at constant irradiance, that are different from one another;
- and
- a processing unit electrically coupled to the first UV detector and to the second UV detector and configured to determine an estimate of a variation of a temperature of the semiconductor device based on a first quantity and a second quantity indicating, respectively, a variation of the first current and a variation of the second current.
A method, comprising:
- manufacturing a semiconductor device for a system for measuring temperature, said manufacturing including forming a first UV detector and a second UV detector, which are configured to generate a first current and a second current, respectively, as a function of the irradiance in the ultraviolet band;
- and wherein forming said first and second UV detectors includes forming said first and second UV detectors with coefficients of variation of the current with temperature, at constant irradiance, that are different from one another.
Dependencies are inferred from the claim text.