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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
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*****circuit****& H% [4 i5 t, X
.subckt sub1 in out vdd vss7 S, w1 q( A) R/ b/ F6 z/ w0 E' c
Mp1 out in vdd vdd P_18 w=3u l=0.18u m=1
9 M$ |. z3 K- O3 H yMn1 out in vss vss N_18 w=1u l=0.18u m=1
) z$ {7 F7 f1 M.ends sub1
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.subckt sub2 in out vdd vss+ I* q+ U* e z
Mp2 out in vdd vdd P_18 w=11.4u l=0.18 m=2
0 `! H! _( J* h" xMn2 out in vss vss N_18 w=3.8u l=0.18u m=2. }2 F! R( z9 B& q- O( ~7 Q3 H
.ends sub2 T$ ?- j& d) g4 i6 X0 B1 Q/ P
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.subckt sub3 in out vdd vss
! z( r$ D+ m% T% s ]Mp3 out in vdd vdd P_18 w=43.32u l=0.18u m=3% V" f% d3 u4 n7 }( |
Mn3 out in vss vss N_18 w=14.44u l=0.18u m=3* z6 K w0 y; I
.ends sub31 i u; K; m) O0 d# z6 D" B! x( b
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.subckt sub4 in out vdd vss
3 i% b3 @- X" _Mp4 out in vdd vdd P_18 w=164.6u l=0.18u m=4
, ?" q# E! l( }Mn4 out in vss vss N_18 w=54.87u l=0.18u m=4' o# s. x$ t: f% x
.ends sub4
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/ E1 G k, F9 i& `, {& _xsub1 a b c 0 sub1+ P' \6 L( g- n9 S
xsub2 b d e 0 sub23 f9 X) C9 f& _- @- o, C
xsub3 d f g 0 sub3
b9 ^+ k! z# ]$ P W: f2 f5 uxsub4 f h i 0 sub4
1 M I4 x; ?/ u5 p- N& s: E' w7 H& }cl h 0 1pf
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*****source******
; ~4 t4 {8 l' }7 D9 K" X( V7 tvdd c 0 1.8- p3 r `/ `. O: N7 x
vdd e 0 1.8
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vdd i 0 1.8
. J) w# w# N" d, p6 Z3 i4 E& ovgnd vss 0 0) \+ M$ c! r4 Q/ l8 ~$ N
vin a 0 pulse(0 1.8 1n 0.5n 0.5n 4.5n 10n)" F5 K q# E/ F" g% q, s5 _, J
*vin a 0 0.9
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