Method of manufacturing an ultrasonic transducer
First Claim
1. A method of manufacturing an ultrasonic transducer, which comprises the steps of:
- forming an arrangement of a plurality of conductors penetrating an insulation member having first and second planes, thereby effecting electrical conduction between said first and second planes;
forming a printed circuit on the second plane of the insulation member to be connected to the conductors;
forming first and second electrodes on surfaces of a plate-shaped piezoelectric element, respectively, to provide a plate-shaped ultrasonic transducer member;
directly fixing the unltrasonic transducer member to the first plane of the insulation member with an electrically conductive adhesive, so as to effect connection between the second electrode and said conductors;
thencutting out notches in the plate-shaped ultrasonic transducer member corresponding to the arrangement of the conductors to divide it into a plurality of individual ultrasonic transducer isolated elements each individual element having a respective conductor;
forming a ground electrode connected to the first electrodes adhering an ultrasonic wave absorber to the second plane of the insulation member, thereby dampening the vibrations of the transducer elements.
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Accused Products
Abstract
Electrode layers are formed on planes of a plate-shaped piezoelectric element to provide an ultrasonic transducer material. The ultrasonic transducer material is bonded to an electrically insulating substrate by electrically conductive adhesive. A plurality of conductors is provided on the substrate in the array direction and a direction perpendicular to the array direction. A printed circuit is formed on the backside of the substrate to connect the conductors. Notches are cut out in the ultrasonic transducer material to divide it into a plurality of transducer elements arranged in the array direction and a direction perpendicular to the array direction. A ground electrode connects the second electrodes of the ultrasonic transducer elements. The transducer elements are impressed with voltage through the printed circuit and ground electrode to issue ultrasonic waves.
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Citations
4 Claims
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1. A method of manufacturing an ultrasonic transducer, which comprises the steps of:
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forming an arrangement of a plurality of conductors penetrating an insulation member having first and second planes, thereby effecting electrical conduction between said first and second planes; forming a printed circuit on the second plane of the insulation member to be connected to the conductors; forming first and second electrodes on surfaces of a plate-shaped piezoelectric element, respectively, to provide a plate-shaped ultrasonic transducer member; directly fixing the unltrasonic transducer member to the first plane of the insulation member with an electrically conductive adhesive, so as to effect connection between the second electrode and said conductors;
thencutting out notches in the plate-shaped ultrasonic transducer member corresponding to the arrangement of the conductors to divide it into a plurality of individual ultrasonic transducer isolated elements each individual element having a respective conductor; forming a ground electrode connected to the first electrodes adhering an ultrasonic wave absorber to the second plane of the insulation member, thereby dampening the vibrations of the transducer elements. - View Dependent Claims (2, 3, 4)
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Specification