Super-high-density array transducer

Abstract

The invention provides a super-high-density array transducer. A flexible printed circuit board comprises a front surface and a rear surface, wherein front grounding leads and front signal leads are arranged on the front surface; rear grounding leads and rear signal leads are arranged on the rear surface; a piezoelectric material layer comprises a left grounding block, a plurality of piezoelectricvibrators and a right grounding block; a vibrator ground electrode is arranged on the top face of each piezoelectric vibrator, and a signal electrode is arranged on the bottom surface of each piezoelectric vibrator; the bottom surface of each matching material layer has the electrical conductivity, and the matching material layers are mounted and fixed to the top faces of the left grounding block,the plurality of piezoelectric vibrators and the right grounding block; the matching material layers are in circuit connection with the left ground electrode of the left grounding block, the right ground electrode of the right grounding block and the vibrator ground electrodes on the top faces of the plurality of piezoelectric vibrators; and the signal electrodes with the odd numbers counted fromleft to right realize circuit connection with a plurality of rear signal leads, and the signal electrodes with the even numbers counted from left to right realize circuit connection with a pluralityof front signal leads. For the super-high-density array transducer, the welding of leads and the arrangement of leads on the vibrator ground electrodes are not needed.

Description

technical field [0001] The invention relates to an ultrasonic transducer in the medical field, more specifically, to an ultra-high-density medical ultrasonic transducer. Background technique [0002] In modern medical practice, ultrasonic image diagnostic equipment is widely used in medical diagnosis of heart, abdomen, urology and obstetrics and gynecology. The ultrasonic probe is a key component of ultrasonic image diagnostic equipment. It is in contact with the human body and is responsible for emitting ultrasonic waves and receiving echoes with human tissue information returned from the human body, and transmitted back to the host computer of the ultrasonic system through the cable. After calculation and synthesis, it forms an intuitive The observed image is displayed on the screen terminal. [0003] Generally speaking, an ultrasonic probe (Ultrasound probe) includes an ultrasonic transducer (Ultrasound transducer), a housing and a cable. A typical ultrasonic transducer...

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Problems solved by technology

[0009] The technical problem to be solved by the present invention is to overcome the disadvantages of the existing ultra-high-density array transducer that when the number of vibrators is large, welding the leads is extremely time-consuming and labor-intensive, and it is very difficult to weld the leads on the surface of the vibrator, and proposes an ultra-high-density array transducer The energy device, using a flexible printed circuit board (that is, FPC), can conveniently and reliably conduct all the signal electrodes of the piezoelectric vibrator and the ground electrode of the vibrator, without welding leads, and without additional leads on the ground electrodes of the vibrator. It can realize batch and rapid industrial production of high-density array transducers

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