Ultrasonic transducer
AssigneeInfineon Technologies AG
InventorsKlaus ELIAN, Matthias EBERL, Horst THEUSS, Rainer Markus SCHALLER, Fabian MERBELER
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Abstract
An ultrasonic transducer includes at least one ultrasonic transducer element, a semiconductor chip that includes the ultrasonic transducer element, and a housing. The semiconductor chip is arranged in the housing. The semiconductor chip is embedded in a dimensionally stable encapsulation, wherein a contact surface of the dimensionally stable encapsulation is configured for acoustically coupling the ultrasonic transducer to a casing. Additionally, an ultrasonic transducer system and a method for fitting the ultrasonic transducer or ultrasonic transducer system are provided.
Claims18
An ultrasonic transducer comprising:
- at least one ultrasonic transducer element;
- a semiconductor chip comprising the at least one ultrasonic transducer element;
- and
- a housing
- wherein the semiconductor chip is arranged in the housing
- wherein the semiconductor chip is embedded in a dimensionally stable encapsulation and
- wherein a contact surface of the dimensionally stable encapsulation is configured for acoustically coupling the ultrasonic transducer to a casing.
An ultrasonic transducer system, comprising:
- an ultrasonic transducer comprising:
- at least one ultrasonic transducer element;
- a semiconductor chip comprising the at least one ultrasonic transducer element;
- and
- a housing,
- wherein the semiconductor chip is arranged in the housing,
- wherein the semiconductor chip is embedded in a dimensionally stable encapsulation, and
- wherein a contact surface of the dimensionally stable encapsulation is configured for acoustically coupling the ultrasonic transducer to a casing;
- and
- a carrier,
- wherein the carrier is configured for mechanically securing by adhesively bonding, screwing, or clipping the ultrasonic transducer system to the casing.
A method for fitting an ultrasonic transducer the method comprising:
- forming a semiconductor chip of the ultrasonic transducer, wherein the semiconductor chip comprises at least one ultrasonic transducer element of the ultrasonic transducer;
- providing a housing of the ultrasonic transducer, wherein the semiconductor chip is arranged in the housing;
- providing a dimensionally stable encapsulation within the housing of the ultrasonic transducer, wherein the semiconductor chip is embedded in the dimensionally stable encapsulation, wherein the housing comprises a base to which the semiconductor chip is coupled and sidewalls that define an opening, wherein a contact surface of the dimensionally stable encapsulation is arranged in the opening or protrudes through the opening;
- arranging the ultrasonic transducer within a casing, wherein the contact surface of the dimensionally stable encapsulation is arranged in indirect contact with the casing and is configured for acoustically coupling the ultrasonic transducer to the casing;
- and
- providing a coupling intermediate layer between the casing and the ultrasonic transducer, wherein the coupling intermediate layer provides a mechanical coupling between the casing and the contact surface of the dimensionally stable encapsulation.
Dependencies are inferred from the claim text.