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Surface acoustic wave RFID sensor for chemical detection and (BIO)molecular diagnostics

A surface acoustic wave and sensor chip technology, applied in the direction of measuring ultrasonic/sonic/infrasonic waves, using sound waves/ultrasonic waves/infrasonic waves to analyze fluids, using sound waves/ultrasonic waves/infrasonic waves for material analysis, etc., can solve unattractive and reduce technical practicability , hindering the sustainable development of downstream applications and other issues

Inactive Publication Date: 2019-07-16
EPITRONIC HLDG PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to the previously mentioned notes, the cost and organizational complexity of performing a large number of PCR reactions for downstream microarray applications makes this option a viable but unattractive option
This limitation severely reduces the practicability of this technology and hinders the continued development of downstream applications

Method used

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  • Surface acoustic wave RFID sensor for chemical detection and (BIO)molecular diagnostics
  • Surface acoustic wave RFID sensor for chemical detection and (BIO)molecular diagnostics
  • Surface acoustic wave RFID sensor for chemical detection and (BIO)molecular diagnostics

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Embodiment Construction

[0067] In the following description, various aspects of the application will be described. For purposes of explanation, specific configurations and details are set forth in order to provide a thorough understanding of the application. It will be apparent, however, to one skilled in the art that the present application may be practiced without the specific details set forth herein. Furthermore, well-known features may be omitted or simplified in order not to obscure the application.

[0068] The term "comprising", as used in the claims, is "open ended" and means the listed elements, or their structural or functional equivalents, as well as any other elements not listed. It should not be construed as being limited to the means listed thereafter; other elements or steps are not excluded. It should be interpreted as specifying the presence of said features, integers, steps or components as referred to, but not excluding the presence or addition of one or more other features, int...

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Abstract

The present application describes embodiments of a radio-frequency identification (RFID) sensor based on a combination of a surface acoustic wave (SAW) transducer and two-dimensional electron gas (2DEG) or two-dimensional hole gas (2DHG) conducting structure, and its use in chemical detection and (bio) molecular diagnostics. The SAW RFID sensor chip contains a piezoelectric substrate, on which a multilayer heterojunction structure is deposited. The heterojunction structure comprises at least two layers, a buffer layer and a barrier layer, wherein both layers are grown from III-V single-crystalline or polycrystalline semiconductor materials, such as GaN / AlGaN. Interdigitated transducers (IDTs) transducing SAWs are installed on top of the barrier layer. A 2DEG or 2DHG conducting channel is formed at the interface between the buffer and barrier layers and provides electron or hole current in the system between the non-ohmic (capacitively-coupled) source and drain contacts connected to theformed channel.

Description

technical field [0001] Generally, the present application relates to the field of electronic sensors based on surface acoustic wave (SAW) transducers. In particular, the application relates to GaN / AlGaN based zero power SAW RFID sensors and their applications in chemical detection and (bio)molecular diagnostics. Background technique [0002] Chemosensing may be the most primitive form of feeling to have emerged in the evolution of life. Without chemical sensing, life might not exist on Earth. They are used to detect nutrients, avoid threats, find mates, and various forms of communication and socialization between animals. [0003] The advent of artificial sensors has created a plethora of problems in the field of chemical detection and identification, with applications in food quality and contamination control, chemical threat detection, health monitoring, robotic control, and even odor and taste synthesis. Efficient algorithms are needed to address the many challenges fa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/02G01N29/24G10K11/36H01L27/20H01L29/66H03H9/64
CPCG01N29/022G10K11/36H01L29/66462G01N2291/0256G01H11/08H01L29/7781H01L29/7786G01N29/2462H10N30/302H03H9/642G01N29/00G01N2291/0423H03H9/02535
Inventor 阿亚尔·拉姆阿米尔·利希滕斯坦
Owner EPITRONIC HLDG PTE LTD
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