Temperature Dependence (-55°°° to 150°°°)

SPMOS uses up to 13 temperature coefficients.×

Flat-band voltage: TK_VFB0, TK_VFBL, TK_VFBW, TK_VFBP.

Mobility: TK_MU0, TK_MUW, TK_MUL, TK_MUP, TK_MU1, TK_THM, TK_CS.

Saturation velocity: TK_VS, TK_AS.

Coefficients TK_VFBL, TK_VFBW, TK_VFBP, TK_MUL, TK_MUP and TK_AS are expected to be zero for mature processes.

The temperature dependence of bulk and surface potentials is not adjusted and is obtained essentially from the first principles. The temperature dependence of the flat-band voltage, mobility and saturation velocity is as follows. In these equations Tn is nominal temperature and

Flat-band voltage

Mobility

Saturation velocity

The default values and ranges for temperature coefficients are given in the table below.

Table -1 Temperature Coefficients

Parameter	Unit	Description	Default	MIN	MAX
TK_VFB0	None	Vfb(T) parameter	0	None	None
TK_VFBL	μm	Vfb(T) scaling parameter (L)	0	None	None
TK_VFBW	μm	Vfb(T) scaling parameter (W)	0	None	None
TK_VFBP	μm2	Vfb(T) scaling parameter (LW)	0	None	None
TK_MU0	None	MU0(T) parameter	1.5	See Note 1
TK_MUL	μm	MU0(T) scaling parameter (L)	0
TK_MUW	μm	MU0(T) scaling parameter (W)	0
TK_MUP	μm2	MU0(T) scaling parameter (LW)	0
TK_MU1	None	μE(T) parameter	0	0	0.1
TK_THM	None	θmu(T) parameter	0	-5	5
TK _CS	None	CS(T) parameter	0	-5	5
TK_VS	K-1	VSAT(T) parameter	0	-0	005
TK_AS	μm	As(T) parameter	0	0	0.1

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