3.3.3 Device Simulation

In order to obtain the necessary data a minimum set of device simulations is carried out for a given structure at the nominal operating temperature $\ensuremath{T_{\mathit{nom}}}\xspace$ (cf. Table 3.3). The data sets 1-3b yield the main performance parameters, and they are functions of the supply voltage, so they cover also $\ensuremath{V_{\mathit{DD}}}\xspace$ variations. The simulations 3a/3b render the terminal charges for the on-state and the off-state respectively (cf. [64]). The sets 4a/4b determine the noise margins and are valid for a fixed $\ensuremath{V_{\mathit{DD}}}\xspace$. The sets 5a/5b are independent of $\ensuremath{V_{\mathit{DD}}}\xspace$ and render only informational parameters, so they are optional.

Table 3.3: Device simulations

simulation	device data
1	dc step $\ensuremath{V_{\mathit{G}}}\xspace$ and $\ensuremath{V_{\mathit{D}}}\xspace$	$\ensuremath{I_{\mathit{on}}}\xspace (\ensuremath{V_{\mathit{DD}}}\xspace )$
2	dc step $\ensuremath{V_{\mathit{D}}}\xspace$, $\ensuremath{V_{\mathit{G}}}\xspace = 0$V	$\ensuremath{I_{\mathit{off}}}\xspace (\ensuremath{V_{\mathit{DD}}}\xspace )$
3a	transient ramp $\ensuremath{V_{\mathit{G}}}\xspace$, $\ensuremath{V_{\mathit{D}}}\xspace = 0$V	$\ensuremath{Q_{\mathit{G,on}}}\xspace (\ensuremath{V_{\mathit{DD}}}\xspace ), \ensuremath{Q_{\mathit{D,on}}}\xspace (\ensuremath{V_{\mathit{DD}}}\xspace )$
3b	transient ramp $\ensuremath{V_{\mathit{D}}}\xspace$, $\ensuremath{V_{\mathit{G}}}\xspace = 0$V	$\ensuremath{Q_{\mathit{G,off}}}\xspace (\ensuremath{V_{\mathit{DD}}}\xspace ), \ensuremath{Q_{\mathit{D,off}}}\xspace (\ensuremath{V_{\mathit{DD}}}\xspace )$
4a	dc step $\ensuremath{V_{\mathit{G}}}\xspace$, $\ensuremath{V_{\mathit{D}}}\xspace = \ensuremath{V_{\mathit{DD}}/2}\xspace$	$\ensuremath{I_{\mathit{D}}}\xspace (\ensuremath{V_{\mathit{G}}}\xspace , \ensuremath{V_{\mathit{D}}}\xspace =\ensuremath{V_{\mathit{DD}}/2}\xspace )$
4b	dc step $\ensuremath{V_{\mathit{D}}}\xspace$, $\ensuremath{V_{\mathit{G}}}\xspace = \ensuremath{V_{\mathit{DD}}/2}\xspace$	$\ensuremath{I_{\mathit{D}}}\xspace (\ensuremath{V_{\mathit{D}}}\xspace , \ensuremath{V_{\mathit{G}}}\xspace =\ensuremath{V_{\mathit{DD}}/2}\xspace )$
5a	dc step $\ensuremath{V_{\mathit{G}}}\xspace$, $\ensuremath{V_{\mathit{D}}}\xspace =50$mV	$\ensuremath{I_{\mathit{D,lin}}}\xspace (\ensuremath{V_{\mathit{G}}}\xspace )$
5b	dc step $\ensuremath{V_{\mathit{D}}}\xspace$ ($\le$1V), $\ensuremath{V_{\mathit{G}}}\xspace = \ensuremath{V_{\mathit{T,lin}}}\xspace$	$\ensuremath{I_{\mathit{D}}}\xspace (\ensuremath{V_{\mathit{D}}}\xspace , \ensuremath{V_{\mathit{G}}}\xspace =\ensuremath{V_{\mathit{T,lin}}}\xspace )$