Delay-free temperature measurement of power switches
AssigneeSchaeffler Technologies AG & Co. KG
InventorFadi Rifai
Life of this patent
Estimating the term…
Abstract
A temperature measurement and a method for measuring the temperature of a semiconductor substrate, or semiconductor substrate, of a power switch assembly, which is delay free. The power switch assembly includes a circuit and a printed circuit board (PCB), where the circuit is mounted to the PCB. A lead frame is part of the circuit, at least one semiconductor substrate is part of the circuit and mounted to the lead frame, and a sensor is part of the circuit and mounted to the lead frame. A chamber is located between the sensor and the semiconductor substrate, such that the chamber galvanically isolates the sensor from the semiconductor substrate. The sensor detects the temperature of the semiconductor substrate.
Claims15
A power switch assembly, comprising:
- a circuit;
- a printed circuit board, the circuit mounted to the PCB;
- a lead frame being part of the circuit;
- at least one semiconductor substrate being part of the circuit, and mounted to the lead frame;
- a sensor being part of the circuit, and mounted to the lead frame;
- and
- a chamber located between the sensor and the at least one semiconductor substrate, such that the chamber galvanically isolates the sensor from the at least one semiconductor substrate and the lead frame;
- wherein the sensor is configured for detecting the temperature of the at least one semiconductor substrate.
A method for detecting the temperature of a circuit, of the method comprising:
- providing a lead frame;
- providing at least one semiconductor substrate mounted to the lead frame;
- providing a sensor mounted to the lead frame;
- and
- providing a chamber located between the sensor and the at least one semiconductor substrate;
- galvanically isolating the sensor from the at least one semiconductor substrate using the chamber;
- and
- detecting the temperature of the at least one semiconductor substrate using the sensor.
Dependencies are inferred from the claim text.