Thursday, July 13, 2017

5T Pixel in SPICE

International Journal of Advanced Research in Computer and Communication Engineering publishes a paper "Optimized Design of Active Pixel Sensor using CMOS 180 nm Technology" by Dipti, Rajesh Mehra, and Deep Sehgal.

Contrary to the whole industry spending a lot of money on expensive device simulators, the authors simulate everything in SPICE:


The proposed timing sequence works well, just does not perform CDS and the small signals do not go through, not to talk about extra sensitivity to FD leakage:

Posted by Vladimir Koifman at 12:34

4 comments:

  1. AnonymousJuly 13, 2017 at 4:01 PM

    TX stays high during integration? Doesn't seem to make sense...

    ReplyDelete
  2. AnonymousJuly 13, 2017 at 5:16 PM

    Spectre and Cadence virtuoso (as reported in the "paper") are not exactly cheap...

    ReplyDelete
    Replies
    1. Vladimir KoifmanJuly 13, 2017 at 5:20 PM

      True, as long as you do not compare them with Synopsys Sentaurus 3D.

      Delete
  3. AnonymousJuly 13, 2017 at 7:10 PM

    hey, it's only a few transistors and a photodiode. How hard can it be?

    http://m.eet.com/media/1160635/pease_and_william_rememberance_slide14_pease_throwing_computer_small.jpg

    from http://www.edn.com/Home/PrintView?contentItemId=4375963

    ReplyDelete

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