Patent ID: 11860272
Assignee: INFINEON TECHNOLOGIES AG
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 14:
15. An ultrasonic touch sensor, comprising:
a housing;
a covering coupled to the housing, wherein an internal area is defined between the housing and the covering, and wherein the covering has a contact face configured to receive a touch and an internal interface that faces the internal area;
a first ultrasonic transducer element arranged in the internal area;
a first potting compound arranged in the internal area and in contact with the internal interface of the covering, wherein the first potting compound extends between the first ultrasonic transducer element and the internal interface;
a first semiconductor chip arranged in the internal area and comprising the first ultrasonic transducer element;
a second ultrasonic transducer element arranged in the internal area;
a second potting compound arranged in the internal area and in contact with the internal interface of the covering, wherein the second potting compound extends between the second ultrasonic transducer element and the internal interface; and
an acoustic barrier formed laterally between the first ultrasonic transducer element and the second ultrasonic transducer element, wherein the acoustic barrier is formed laterally between the first potting compound and the second potting compound.