A Cmos Fully Integrated 860Ghz Terahertz Sensor

• doi: 10.1109/TTHZ.2017.2692040
• title: A CMOS Fully Integrated 860-GHz Terahertz Sensor
• publisher: IEEE
• isbn:
• issn: 2156-3446
• rank: 540
• access_type: OPEN_ACCESS
• content_type: Journals
• abstract: This paper proposes a CMOS fully integrated 860-GHz terahertz (THz) sensor. The sensor integrates a single-NMOS THz detector, a low-noise chopper instrumentation amplifier and a high-resolution ΔΣ-ADC. The detector consists of a novel on-chip grounded patch antenna and a source-feeding NMOS field-effect transistor (FET) of the minimum size. A microstrip transmission line is designed to improve the power transfer efficiency between the antenna and the NMOS transistor. A notch filter is proposed to improve detector performance. To enable the theoretical analysis of the operation of the THz detector and the formulation of design guidelines, we propose a THz-FET device model in which a source-coupled FET for THz detection is modeled as a dc voltage source with a resistor. The model indicates that an FET with the minimum physical dimensions for a given CMOS process can produce the maximum output signal. The sensor is implemented in a 180-nm standard CMOS process. The detector achieves a voltage responsivity of 3.3 kV/W and an NEP of 106 pW/Hz1/2 at 860 GHz. The sensor noise and the readout circuit noise are 10.81 and 2.03 μVrms, respectively. The sensor obtains clear raster-scanning transmission images under continuous THz illumination.
• article_number: 7926419
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7926419
• html_url: https://ieeexplore.ieee.org/document/7926419/
• abstract_url: https://ieeexplore.ieee.org/document/7926419/
• publication_title: IEEE Transactions on Terahertz Science and Technology
• conference_location:
• conference_dates:
• publication_number: 5503871
• is_number: 7962900
• publication_year: 2017
• publication_date: July 2017
• start_page: 455
• end_page: 465
• citing_paper_count: 68
• citing_patent_count: 0
• download_count: 5495
• insert_date: 20170511
• index_terms:
  • ieee_terms:
    • Detectors
    • Semiconductor device modeling
    • Logic gates
    • MOSFET
    • Resistors
  • author_terms:
    • ADC
    • CMOS
    • continuous wave
    • notch filter
    • readout circuit
    • submillimeter wave
    • terahertz (THz) detector
    • THz device model
    • THz imaging
    • THz sensor
  • dynamic_index_terms:
    • Terahertz Sensor
    • Transmission Line
    • Field-effect Transistors
    • Notch Filter
    • Sensor Noise
    • Voltage Response
    • Low-noise Amplifier
    • CMOS Process
    • Minimum Dimension
    • Dc Voltage Source
    • Readout Circuit
    • Ground Plane
    • Floor Plan
    • Metal Layer
    • Circuit Design
    • Impedance Matching
    • CMOS Technology
    • Antenna Performance
    • Antenna Operating
    • Terahertz Imaging
    • Terahertz Signal
    • Simulated Impedance
    • Top Metal Layer
    • Gate Bias
    • Antenna Impedance
    • Center Of The Antenna
    • Relative Change Values
    • Detector Output
    • Quarter Wavelength
• authors:
  • Author Name: Zhao-yang Liu
    Affiliation: State Key Laboratory of Superlattices and Microstructures, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Beijing, China
    Author URL: https://ieeexplore.ieee.org/author/37085708907
    ID: 37085708907
    Order: 1
    Author Affiliations:
    • State Key Laboratory of Superlattices and Microstructures, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Beijing, China
  • Author Name: Li-yuan Liu
    Affiliation: State Key Laboratory of Superlattices and Microstructures, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Beijing, China
    Author URL: https://ieeexplore.ieee.org/author/37085745851
    ID: 37085745851
    Order: 2
    Author Affiliations:
    • State Key Laboratory of Superlattices and Microstructures, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Beijing, China
  • Author Name: Jie Yang
    Affiliation: State Key Laboratory of Superlattices and Microstructures, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Beijing, China
    Author URL: https://ieeexplore.ieee.org/author/37089545294
    ID: 37089545294
    Order: 3
    Author Affiliations:
    • State Key Laboratory of Superlattices and Microstructures, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Beijing, China
  • Author Name: Nan-jian Wu
    Affiliation: State Key Laboratory of Superlattices and Microstructures, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Beijing, China
    Author URL: https://ieeexplore.ieee.org/author/37286754000
    ID: 37286754000
    Order: 4
    Author Affiliations:
    • State Key Laboratory of Superlattices and Microstructures, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Beijing, China

Image Sensor

• sensor_type: CMOS
• resolution: —
• dynamic_range: —
• pixel_size: 0.18 μm and 0.24 μm
• dark_current: —

Optical Data

• focal_length: —
• aperture: —
• field_of_view: —
• distortion: —

Performance Metrics

• frame_rate: —
• signal_to_noise_ratio: 80 dB
• sensitivity: —
• shutter_speed: —
• power_consumption: —
• noise: 10.81 µVrms

Applications & Benefits

• cell_imaging: Terahertz imaging techniques for security checks and non-destructive testing.
• benefits: Integration of the sensor allows for compact design and potential use in portable devices.

Supporting Organizations

• supported_by: National Natural Science Foundation of China, National Key Research and Development Program of China, Beijing Natural Science Foundation.

Manuscript Details

• publication_date: July 2017

Relevancy Score

• score: 8
• missing_fields:
  • resolution
  • dynamic_range
  • dark_current
  • focal_length
  • aperture
  • field_of_view
  • distortion
  • frame_rate
  • sensitivity
  • shutter_speed
  • power_consumption

Processed JSON Filename

request_3686fb31-e786-45a4-934e-9bca5b3f1766-a_cmos_fully_integrated_860ghz_terahertz_sensor.json