Journal of Infrared and Millimeter Waves, Volume. 43, Issue 1, 36(2024)

Improved detection performance of 1280 × 1024 middle-wavelength infrared HgCdTe focal plane arrays with 10 μm pixel pitch

Bi-Song TAN*, Jian-Hong MAO, Shu-Xuan CHEN, Wei-Wei LI, Shi-Rui CHEN, Tian-Qing CHEN, Yu DU, Chen-Pan PENG, Xiong XIONG, Yong-Qiang ZHOU, Bo YU, and Shu WANG
Author Affiliations
  • Zhejiang Juexin Microelectronics Co.,Ltd,Lishui 323000,China
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    Figures & Tables(12)
    Surface profiles of HgCdTe epilayer used for 1280×1024 detector fabrication
    Structure of the pixel in 1280×1024 arrays
    Indium bump diagram taken with ContourGT-X
    The bad pixel mapping for 1280 × 1024 MWIR FPAs (a) unslotted FPA (b) slotted FPA
    MWIR detector with 1280×1024 10 μm HgCdTe FPA
    Measurement of spectral a 1280×1024 MWIR detector
    The results of(a)Responsivity grayscale and(b)Responsivity histogram of the detector
    The results of(a)NETD grayscale and(b)NETD distribution histogram of the detector
    The results of(a)Dark current grayscale and(b)Dark current distribution histogram of the FPA
    Target Picture with (a) 640×512 15 μm MWIR detector (b) 1280×1024 10 μm MWIR detector
    • Table 1. Performances of 1280×1024 MWIR detector with 10μm HgCdTe FPA

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      Table 1. Performances of 1280×1024 MWIR detector with 10μm HgCdTe FPA

      ARRAY FEATURES
      Format1280×1024
      Pixel pitch10 μm
      Detector spectral response3.7±0.2 μm ~4.8±0.2 μm
      FPA Operating Temperature85 K
      ROIC(READ-OUT INTEGRATED CIRCUIT)
      SelectionSerial electrical interface
      ROIC architectureSnapshot operation,direct injection input circuit,ITR/IWR mode,n-on-p
      ROIC functionalitiesProgrammable integration time,image invert / revert / inverse
      Window modes1280×1024,1024×1024,1280×720(any size down to 128×2(8CH)or 64×2(4CH))
      Charge handling capacityITR mode:4.6 Me
      Electrical dynamic rangeITR mode:2.4 V
      Readout noiseITR mode:0.18 mV
      Signal outputsAnalog 4 or 8 channels
      Pixel output rateUp to 20 MHz per output
      Frame rateUp to 100 Hz full frame rate
    • Table 2. Performance comparison of 10 μm pitch MWIR FPAs

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      Table 2. Performance comparison of 10 μm pitch MWIR FPAs

      InstituteFormatPixel Pitch/μmSpectral Response/μmMean NETDArray operability
      LYNRED221280×720103.7-4.8≤20 mK≥99.80%
      The 11th Research Institute of CETC 231024×1024103.7-4.8≤25 mK≥99.50%
      SemiConductor Devices241920×1536103.7-4.8≤30 mK≥99.5%
      Zhejiang Juexin Microelectronics Co.,Ltd1280×1024103.7-4.815.56 mK99.95%
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    Bi-Song TAN, Jian-Hong MAO, Shu-Xuan CHEN, Wei-Wei LI, Shi-Rui CHEN, Tian-Qing CHEN, Yu DU, Chen-Pan PENG, Xiong XIONG, Yong-Qiang ZHOU, Bo YU, Shu WANG. Improved detection performance of 1280 × 1024 middle-wavelength infrared HgCdTe focal plane arrays with 10 μm pixel pitch[J]. Journal of Infrared and Millimeter Waves, 2024, 43(1): 36

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    Paper Information

    Category: Research Articles

    Received: Mar. 26, 2023

    Accepted: --

    Published Online: Dec. 26, 2023

    The Author Email: Bi-Song TAN (ty138713@126.com)

    DOI:10.11972/j.issn.1001-9014.2024.01.006

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