Diamond solution gate field effect transistor system

A field-effect transistor and diamond technology, which can be used in radio wave measurement systems, use of re-radiation, geophysical measurement, etc., can solve the problem of affecting the effectiveness and reliability of detection, communication, positioning and navigation, limiting the development of underwater acoustic technology, and sound wave propagation. Low speed and other problems, to achieve the effect of expanding underwater communication and detection means, reducing limitations, and fast transmission speed

Pending Publication Date: 2019-05-24
XI AN JIAOTONG UNIV
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Problems solved by technology

However, on the one hand, due to the complexity of the water medium, the sound wave is seriously interfered by the reflected sound waves of the water surface, the bottom of the water, objects in the water and the noise in the water during the application process; All these limit the development of underwater acoustic technology and affect the effectiveness and reliability of its detection, communication, positioning and navigation.

Method used

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  • Diamond solution gate field effect transistor system

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preparation example Construction

[0041] The above-mentioned preparation method of a diamond solution gate field effect transistor system comprises the following steps:

[0042] Step 1: Carry out acid-base treatment to the diamond substrate 1, and dry it, and epitaxially obtain a single crystal diamond epitaxial film 2 on the diamond substrate 1, and clean the surface of the single crystal diamond epitaxial film 2; epitaxial single crystal diamond epitaxial film 2 technologies are microwave plasma vapor phase chemical deposition technology, hot wire chemical vapor deposition technology, DC jet plasma technology, etc.;

[0043] Step 2, using photolithography technology, metal deposition technology and lift-off technology to form drain electrode 3 and source electrode 4 on the upper surface of single crystal diamond epitaxial film 2;

[0044] Step 3, connecting one end of the resistor 5 to the drain 3 through a wire;

[0045] Step 4, connect the other end of the resistor 5 to the positive pole of the power supp...

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Abstract

The invention discloses a diamond solution gate field effect transistor system and a detection method. The system comprises a diamond solution gate field effect transistor and a reference electrode which are independently arranged each other and placed into seawater at intervals, the diamond solution gate field effect transistor and the reference electrode form a capacitor, the outer end of the reference electrode is connected with a voltage signal source, and the diamond solution gate field effect transistor is connected with a voltage reader. The system is used for detection and communication by the aid of electric signals, propagation speed is high, interference of objects in water to the system is less, long-distance propagation can be implemented, so that limit of detection and communication distance is reduced, long-distance detection and communication can be achieved, detection sensitivity is improved by a transmission mode of the electric signals, millivolt-scale change can bedetected, and delaying time of the system is shortened and within a few microseconds.

Description

technical field [0001] The invention belongs to the technical field of semiconductor devices, and in particular relates to a diamond solution gate field effect transistor system. Background technique [0002] Because sound waves can travel long distances in water media, they have always been regarded as an effective underwater information carrier. Underwater acoustic detection, communication, positioning and navigation technologies have also been key research objects in the marine field. However, on the one hand, due to the complexity of the water medium, the sound wave is seriously interfered by the reflected sound waves of the water surface, the bottom of the water, objects in the water and the noise in the water during the application process; All these limit the development of underwater acoustic technology and affect the effectiveness and reliability of its detection, communication, positioning and navigation. [0003] In recent years, as quiet targets such as quiet su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/08
CPCY02A90/30
Inventor 王宏兴常晓慧王艳丰侯洵
Owner XI AN JIAOTONG UNIV
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