Coulomb diamond capacitance extraction
= Coulomb diamond capacitance extraction
{c}
With source biased and drain grounded, a constant-interaction island has diamond edge slopes $s_-=-C_g/C_s$ and $s_+=C_g/(C_\Sigma-C_s)$. The latter includes the gate <capacitance>. A gate period for charging without an orbital gap is $\Delta V_g=e/C_g$. Combining widths and slopes determines <capacitances> only under a stated bias and single-island model; shell gaps must not be mistaken for a universal gate period.