Patent ID: 11940489
Assignee: INFINEON TECHNOLOGIES AG
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 12:
13. A semiconductor device, comprising:
a semiconductor body;
an electrical device formed in an active region of the semiconductor body, the active region including an interface between the semiconductor body and an insulating material;
a sensor having a bandwidth tuned to at least part of an energy spectrum of light emitted by carrier recombination at the interface when the electrical device is driven between accumulation and inversion, wherein an intensity of the emitted light is proportional to a density of charge trapping states at the interface, wherein the sensor is configured to output a signal that is proportional to the intensity of the emitted light; and
an amplification circuit configured to amplify the signal output by the sensor,
wherein the sensor is monolithically integrated in the same semiconductor body as the electrical device in a first semiconductor die,
wherein the amplification circuit is disposed in a second semiconductor die,
wherein the first semiconductor die further comprises a pin electrically coupled to the sensor,
wherein the pin of the first semiconductor die is electrically coupled to a corresponding pin of the second semiconductor die, and
wherein the pin of the second semiconductor die is electrically coupled to an input of the amplification circuit.