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3.1.6. Semiconductor Capacitor Model (C)
The capacitor model contains process information that may be used to compute the capacitance from strictly geometric information.
 name     parameter                       units       default   example

                                                  2
 CJ       junction bottom capacitance     F/meters    -         5e-5
 CJSW     junction sidewall capacitance   F/meters    -         2e-11
 DEFW     default device width            meters      1e-6      2e-6
 NARROW   narrowing due to side etching   meters      0.0       1e-7

      The capacitor has a capacitance computed as

 CAP = CJ (LENGTH - NARROW) (WIDTH - NARROW) + 2 CJSW (LENGTH + WIDTH - 2 NARROW)
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