2. Low power design consideration

Static

$P_{ds}=V_{DD}.I_D$

dynamic

$Q=C_oV_{DD}$

$= V_{DD}.Q/t$

$=V_{DD}^2 . C_o.f$

Total average $P= V_{DD}.I_D+ V_{DD}^2.C_o.f$

3. Interconnect scaling

W , t, td = three interconnect parameter

Resistance:

W’=w/s

R=Rs(L/w)

R’=R=Rs=sRs=sr

R’(line)=sr(line)

But l’=l/s

R’(line)= r(line)

Cap:

$c^{'} = E_o [1.15(w^{'}/t_d) + 2.8(t/t_d)^{0.222}]$

C’=C/s

$C’_{line}= C_{line}/S^2$

4. …