International Image Sensor Workshop 2019 (1)

Very brief : on the first day about 10 papers were presented and 33 posters were announced.  I recognized 3 major trends :

  1. 0.8 um pixel size is there !  The 3 major suppliers are working on 0.8 um and/or have it available on the market : Sony, OmniVision and Samsung.  A very careful prediction is that in 2021-2022 0.7 um pixel pitch will become available.
  2. many people are working on the dominant noise source in a CIS, being the source-follower.  Several papers came with an ownful lot of measurements to explain and further optimize the source-follower noise, including RTS noise.
  3. dark current is still a hot topic, and mainly dark current of the floating diffusion node.  The latter is often used as a storage node and then the dark current is really becoming an issue.  A few years ago, a rough comparison between the dark current of the PPD and the dark current of the FD told that there existed a factor of 1000 in dark current density between the two (guess which one is the lowest).  At this moment the dark current of the FD is reduced already more than one order of magnitude compared to what we had a few years ago.  Still some work to do !

Great quality of papers/presentations, very open discussions, very well organized workshop.  More info to follow !!

Regards,

Albert, 25-06-2019.

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