High Spatial Resolution Ultrasound Detector Based on High Density Electrode Array

Abstract

A high spatial resolution ultrasonic detector based on a high-density electrode array, including a matching layer, an array structure piezoelectric material sheet, an insulating adhesive layer, a silicon pixel chip, and a chip bonding circuit board; the array structure piezoelectric material sheet consists of single-sided electrodes and The array structure consists of small piezoelectric material units, the matching layer is adhered to the single-sided electrode, and the single-sided electrode is grounded. The piezoelectric material small units of the array structure are bonded to the silicon pixel chip through an insulating adhesive layer; the silicon pixel chip is fixedly installed on the Chip bonding circuit board. The detector receives the ultrasonic wave, and the ultrasonic wave is converted into unequal electrical signals on the compact piezoelectric material small unit of the array structure piezoelectric material sheet through the matching layer, and is induced through the insulating adhesive layer and the pixel on the silicon pixel chip. For unequal charges, the chip bonding circuit board outputs corresponding analog or digital signals to obtain three-dimensional information inside the object to be measured. The invention adopts the silicon pixel chip to respond to the ultrasonic wave in real time, so that the imaging of the detector has high resolution and precision.

Description

Technical field [0001] The invention relates to the detection and treatment field of B-ultrasound and ultrasound CT, in particular to a high-spatial-resolution ultrasound detector based on a high-density electrode array, which can be applied to B-ultrasound machines and ultrasound CT machines to achieve high-resolution and high-precision imaging . Background technique [0002] The most commonly used ultrasound detection devices are B-ultrasound and ultrasound CT. CT detection includes: X-ray CT, Ultrasonic CT (Ultrasonic CT), Photon Radiation CT (SPECT), Magnetic Resonance CT (MRICT); The most widely used CT detection technology is X-ray CT technology. [0003] Compared with X-ray inspection, ultrasonic inspection has the advantages of good directivity, low price, harmless to human body, and easy to carry equipment. Therefore, the detection technology of ultrasound as the emission source replaces the radiation to irradiate the object, and the manufacture of high spatial resolutio...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a high-spatial-resolution ultrasonic detector based on a high-density electrode array for the problems of low detection space resolution, poor imaging accuracy and poor stability in existing B-ultrasound machines and ultrasonic CT machines , applied to the receiving end of B-ultrasound machines and ultrasonic CT detection machines to improve the accuracy and stability of ultrasonic imaging

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