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DESCRIPTION JPS5514014

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DESCRIPTION JPS5514014
1 、 Name of invention
Method of manufacturing ultrasonic probe
3. Detailed Description of the Invention Recently, an ultrasonic tomography apparatus capable of
viewing a tomogram of a moving heart or abdomen as a medical device in a reaction system has
been rapidly spreading. This is because it is characterized by being non-invasive, with little
concern, and having a large amount of information for low price. Ultrasonic diagnosis methods
include pulse reflection method, doppler method, and transmission method, but are currently put
to practical use, and the mainstream of research is pulse reflection method. The principle of the
pulse reflection method is that an IMf (z to 10 MHz ultrasonic pulse is emitted from an oscillator
(piezoelectric element) and an impedance mismatch is returned from an interface of two tissues
(materials) having different acoustic impedances. The same transducer is received by the same
transducer, and intensity modulation is performed on the oscilloscope with that intensity, and the
position of the echo is displayed. There are mechanical scanning method and electronic scanning
method in this diagnostic device, but in the future it will be converted to electronic scanning
method with a large amount of information EndPage: 1 splits m vibrators with electrodes on both
sides, backing material In the present situation, it was difficult to electrically connect the m
electrodes of the transducer on the back surface and the lead wires, and it took a lot of time for
one operation. In this case, the electrode on the surface is a common electrode). The present
invention proposes a method to eliminate this drawback. That is, the electrode is provided by
electroless plating (for example, electroless silver plating) or adhering a metal foil on the top
surface of the banking material to which the vibrator is attached. To the backing material
provided with this electrode, a vibrator having electrodes on both sides is bonded to one side of
the backing material leaving a space enough to connect the lead wire. Then, the electrodes of the
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vibrator and the backing material are divided into m pieces by the scribing dicer, and the lead
wires and the m divided electrodes of the backing material are electrically connected individually.
In this case, the electrode of the banking material is in contact with the lead wire without directly
connecting the electrode on the back surface of the vibrator and the lead wire. The configuration
of the present invention will be described using the drawings showing an embodiment. In the
figure, reference numeral 1 denotes a backing material for ultrasonic absorption, and an
electrode 2 is provided on the upper surface thereof by applying electroless plating (for example,
electroless silver plating) or adhering a metal foil. The vibrator 4 having the electrodes 3 and 5
on both sides is bonded on the upper surface of the banking material 1 having the electrode 2,
leaving a space sufficient for connecting the lead wire 6 to the electrode 2 on the upper surface
of the banking material 1. After the vibrator 4 and the backing material 1 are bonded to each
other, the vibrator 4 is divided into m pieces by the scribing dicer so that a cut is also made in
the banking material 1.
After dividing into m pieces, the lead wire 6 is electrically connected to the electrode 2. In this
case, a flexible substrate can also be used as a lead wire. As described above, according to the
present invention, it is not necessary to directly connect the electrode on the back surface of the
vibrator and the lead wire, and it is possible to connect the lead on the top surface of the backing
material which can be easily connected. It is very practical value because it can work in a short
time.
4 is a perspective view showing an embodiment of an ultrasound probe obtained by the method
of the present invention. DESCRIPTION OF SYMBOLS 1 ......-Backing material, 2 ... Electrode, 3.5 ...
Electrode, 4 ... Vibrator 6, 6 ... Lead wire. Name of agent Attorney Nakao Toshio has 1 person
EndPage: 2
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