Sunday, August 04, 2019

TSMC Offers 1550nm Sensing Platform

TSMC publishes its LiDAR and HDR sensing automotive portfolio mentioning 1550nm NIR+ Gen2 imaging platform:

"TSMC's pixel-level stacking technology enables higher resolution, HDR and Global shutters that are imperatives in fully autonomous vehicles. Our high QE(Quantum Efficiency) NIR technology enhances vehicle night vision. NIR+ at visible wavelength and NIR+ Gen2 at longer wavelength are being added to the portfolio, to make 940nm/1550nm Lidar sensor feasible."


  1. Interesting news. Any information on the technology they are using?

  2. Replies
    1. What about dark current? Lag? Hot pixels? ...?

      I did read something about SiGe, but I did not think it was commercially viable.

    2. It was new to me that SiGe is another aproach for detection in the >1200nm range. Are there any other technology approaches for the >1200nm range other than
      - SiGe
      - InGaAs
      - other compound Semiconductors like HgCdDe, InSb...
      - CQD and other 'quantum dot' approaches
      - Graphene
      - Schottky Diodes

  3. Nanowires are another approach which also limits dark current

  4. I thought the sensor that used graphene was not really using graphene to convert light, it was using CQD for the bulk light conversion and graphene as the top layer contact.


All comments are moderated to avoid spam and personal attacks.