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conventions

In order to make sure we're all on the same page, here are a few conventions to follow.

Layer names

  • Active/implant/STI layer
    • If bare silicon with no processing: active
    • If Dash etch or similar: stain
  • Polysilicon layer
    • If chip only has one poly layer: poly
    • If chip has more than one poly layer: polyN, where N starts from 1 at the lowest layer and counts up
  • Metal layer
    • If the number of layers in the chip is known (from a cross section, etc): mN, where N starts from 1 at the lowest layer and counts up
    • If the number of layers is not known: mN, where N starts from the letter z at the upper layer and counts down

Image types

Abbreviated names for different microscope configurations

  • bf: Brightfield optical
  • bse: Backscatter electron
  • df: Darkfield optical
  • dic: Differential interference contrast
  • se: Secondary electron
  • xpol: Crossed polarizers

Objective names

Please add new objectives to this list as necessary.

NOTE: Imaging typically involves a 10x relay lens to make actual magnification times 10. For example, a Mit20x objective is used with a 10x relay lens to make the final image at 200x magnification on the CCD. However, chip pages should include scale bars whenever possible as sensor size has no relation to pixel size, especially in stitched or downsampled images.

  • am4x: AmScope 4x
  • am10x: AmScope 10x
  • am40x: AmScope 40x
  • am100x: AmScope 100x (oil immersion)
  • bli20x: Bausch & Lomb industrial 20x (designed for stereozoom series)
  • ch2x: cheap supposedly Apo 2x objective that may be made of soda glass (green tinge…). Loosely resembles Seiwa objectives
  • mit5x: Mitutoyo M Plan Apo 5x
  • mit10x: Mitutoyo M Plan Apo 10x
  • mit20x: Mitutoyo M Plan Apo 20x
  • mit50xn: Mitutoyo M Plan Apo 50x Near UV
  • mit100x: Mitutoyo M Plan Apo 100x
  • neo5x: Olympus Neo 5x
  • nd5x: Olympus Neo DPlan 5x
  • ns50x: Olympus Neo SPlan 50x
  • ns50xu: Olympus Neo SPlan 50x ultra-long working distance (ULWD)
  • sz or zoom: Zoom microscope, generally no scale bar provided because magnification varies (unless that particular zoom setting was calibrated during the same imaging session)

Scales

Scope Objective Resolving power (nm) nm / pix Notes
pr0nscope mit2x 5000 3330 Config file. X: 1632 pix
pr0nscope mit5x 2000 1330
pr0nscope mit10x 1000 667
pr0nscope mit20x 700 333
pr0nscope ns50xu
pr0nscope mit50xn 700 133 Assumed linear but needs actual verification. Also hmm should rethink its use
pr0nscope mit100x 400 66.7

See also

conventions.txt · Last modified: 2016/10/29 15:21 by mcmaster