{"id":31165,"date":"2004-04-01T00:09:52","date_gmt":"2004-04-01T00:09:52","guid":{"rendered":"https:\/\/silvaco.com\/%eb%b6%84%eb%a5%98%eb%90%98%ec%a7%80-%ec%95%8a%ec%9d%8c\/extraction-of-spice-model-parameters-from-atlas-device-simulation-using-utmost\/"},"modified":"2021-07-16T21:53:28","modified_gmt":"2021-07-17T04:53:28","slug":"extraction-of-spice-model-parameters-from-atlas-device-simulation-using-utmost","status":"publish","type":"post","link":"https:\/\/silvaco.com\/ko\/simulation-standard-ko\/extraction-of-spice-model-parameters-from-atlas-device-simulation-using-utmost\/","title":{"rendered":"Extraction of SPICE Model Parameters from Atlas Device Simulation Using Utmost"},"content":{"rendered":"
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Extraction of SPICE Model Parameters from Atlas Device Simulation Using Utmost<\/strong><\/h1>\n

Many users would like to extract SPICE models from their process and device simulation using Athena <\/i><\/b>and Atlas <\/i><\/b>to be used in actual circuit simulation without actually fabricating the device.<\/p>\n

Using SILVACO’s Utmost <\/i><\/b>you can extract SPICE model parameters from the simulation results of Athena <\/i><\/b>and\u00a0Atlas<\/em><\/strong>.<\/p>\n

To guide users on how to go about extracting SPICE model parameters an example which extracts BSIM3v3 model from process\/device simulation is used in this article.<\/p>\n

All these commands can be executed from a single software \u2013\u00a0DeckBuild<\/em><\/strong>.<\/p>\n

The commands are heavily commented so that you know their functions and purpose.<\/p>\n

Here we will concentrate on the Utmost <\/i><\/b>batch mode commands. Here we only cover a very simple case and there is no local optimization. The\u00a0UTMOST<\/em><\/strong>\u00a0interactive mode can be used save the Utmost <\/i><\/b>setup into a file.\u00a0Utmost<\/em><\/strong>\u00a0interactive cannot be executed from\u00a0DeckBuild<\/em><\/strong>.<\/p>\n

———– start of deckbuild commands ————-<\/p>\n

# Commands that can be used in deckbuild to extract
\n# Spice model Parameters. The deck for TCAD is
\n# not complete . Below are examples of commands that
\n# maybe used in VWF Athena and Atlas to obtain the
\n# device characteristics<\/p>\n

###### START ATHENA SIMULATION ###<\/p>\n

# Run process simulation<\/p>\n

go athena<\/strong><\/p>\n

# Extract the poly length LD<\/p>\n

extract name=\u201dld\u201d thick poly y.val=0
\nextract name=\u201dutmost_ld\u201d($ld*1.0e-4)
\n….
\nextract thickness oxide mat.occno=1 name=\u201dtox\u201d
\nextract name=\u201dutmost_tox\u201d ($tox*1.0e-10)
\n….<\/strong><\/p>\n

###### START ATLAS DEVICE SIMULATION ##<\/p>\n

go atlas<\/p>\n<\/div><\/section><\/div>

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