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不好意思,大學修積體電路導論,目前的作業出到inverter chain 但卡在這好久,麻煩前輩們解惑了!問題是4階inverter chain,條件給了minimum size還有基本的cl 1pf等等,我用了網路建議的f=3.8試看看,第一關跑圖就失敗了。。。tr0跑出來的圖形歪七扭八整片顏色。。。下面是我的gedit inv.sp
5 M5 I( f' }- Y5 ^1 [/ R7 @3 \$ [9 {# v
, x1 m b7 q& A: q2 G*****circuit****8 Y4 M# \6 I$ F3 G! p* ^+ v
.subckt sub1 in out vdd vss* H# s6 c, E" E& K0 ?% N
Mp1 out in vdd vdd P_18 w=3u l=0.18u m=1
" | m6 e" J" B. eMn1 out in vss vss N_18 w=1u l=0.18u m=1
3 g z/ Q2 k1 C3 p; `* y9 ~.ends sub1& o7 s! W, @4 d3 u, U9 p. y' I$ B
' z4 y3 n; T; X ~9 s.subckt sub2 in out vdd vss7 T$ c. d2 m" D. ^. Q
Mp2 out in vdd vdd P_18 w=11.4u l=0.18 m=2
- n [. W' B0 V* ^) q: {Mn2 out in vss vss N_18 w=3.8u l=0.18u m=2
0 {* y) ?' P9 T0 e1 C. u.ends sub2/ l% @3 n4 Q( r" R' g9 M" b
" I/ \! w0 A0 a4 W9 I$ \) @
.subckt sub3 in out vdd vss
4 h U0 ~# x" |5 l8 t2 I% pMp3 out in vdd vdd P_18 w=43.32u l=0.18u m=3, Z, _5 t& i; [" a- b8 m e0 @1 d
Mn3 out in vss vss N_18 w=14.44u l=0.18u m=36 c! J( S' u* K# q0 m. V- B A: J
.ends sub3; X! p" t" X T5 Z! W
& ^# N, w0 y0 V j.subckt sub4 in out vdd vss& U/ k) |6 f. k; q: G# C' `
Mp4 out in vdd vdd P_18 w=164.6u l=0.18u m=4+ a# h# b+ Z* H3 J" C$ [
Mn4 out in vss vss N_18 w=54.87u l=0.18u m=4
$ e/ |) }* j B) f1 v.ends sub44 c& N: l2 ^$ `4 R
, @9 K5 \" v8 c. Hxsub1 a b c 0 sub19 k7 I0 u- {9 @
xsub2 b d e 0 sub2
, T9 m2 Y3 E, c" Nxsub3 d f g 0 sub3( ?0 V0 K7 ^, O6 W+ d0 \1 Y
xsub4 f h i 0 sub41 R4 x2 v0 A- n5 ?% \0 j
cl h 0 1pf! d' i/ k( [+ R* {, L( v1 `
& m+ Y" Y# L4 ?; ]
) V% z- D8 M" p/ S$ G1 a( S$ C4 |2 \*****source******1 z, Z1 i# ]( K: B2 I
vdd c 0 1.8
/ y' H& v7 H7 N3 e6 Bvdd e 0 1.8
+ Z3 I; B8 Y7 g& v B# d0 d! M' o' Zvdd g 0 1.8/ S, |4 y! U$ j* Z/ q6 {
vdd i 0 1.8
5 C5 `1 m- x) ^# y' Z; u& Lvgnd vss 0 0: ^ `) a; x1 L+ z
vin a 0 pulse(0 1.8 1n 0.5n 0.5n 4.5n 10n)
+ q5 q+ a2 f! `: W4 \*vin a 0 0.9
& ~/ U* ?8 k V3 [3 p
; r, f. X* ?& |2 q/ I( D8 F& Z% A; c( o$ _" X
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