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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 8 J2 J3 } F5 ]1 c4 p
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*****circuit****
/ O' V0 ^0 F, C% g' @* [8 _/ z2 ?5 m.subckt sub1 in out vdd vss" t% R; x5 |0 { m
Mp1 out in vdd vdd P_18 w=3u l=0.18u m=1
3 [" N$ Z. M' P) M" Z6 y: |5 A3 zMn1 out in vss vss N_18 w=1u l=0.18u m=1, Z& ^6 N, h7 I3 d( Z8 [
.ends sub14 j9 V e# c6 O% M! l
; Q5 C- N6 R: | F g/ K
.subckt sub2 in out vdd vss D8 ^8 S( u; a/ _
Mp2 out in vdd vdd P_18 w=11.4u l=0.18 m=2
% n8 o/ ?7 V1 L0 X% WMn2 out in vss vss N_18 w=3.8u l=0.18u m=20 p, @: S2 g* Z$ u ]
.ends sub2
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.subckt sub3 in out vdd vss
2 w2 D! t( v8 j: M- bMp3 out in vdd vdd P_18 w=43.32u l=0.18u m=3- j t2 h, Q/ G J6 \1 o$ f. u
Mn3 out in vss vss N_18 w=14.44u l=0.18u m=38 D7 W: B/ Q7 H5 w1 J5 N! H
.ends sub3
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.subckt sub4 in out vdd vss
0 q- O0 j6 P7 l4 M) @! N8 aMp4 out in vdd vdd P_18 w=164.6u l=0.18u m=4
. N& G' k6 ]1 T$ V, uMn4 out in vss vss N_18 w=54.87u l=0.18u m=4
1 F- h4 W9 X8 X! Y" Z7 b.ends sub4
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xsub1 a b c 0 sub1
. n: K- D- e) kxsub2 b d e 0 sub2" n3 r: }! W' ~' i% u
xsub3 d f g 0 sub3/ R2 g% Q% y0 N8 T( t
xsub4 f h i 0 sub40 M) Y( x% M. C& U
cl h 0 1pf& q& L+ l' t. }+ ?6 O* I
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5 R/ x& }6 d# ~8 G8 L s$ {; t*****source******! B8 J% f! S3 x4 {0 j! |3 R
vdd c 0 1.8
! U9 J- c/ {4 d% o7 M& hvdd e 0 1.8
- z8 U, m2 v, Pvdd g 0 1.87 ?. Q( |* G/ M1 u; a; ~6 t/ Z
vdd i 0 1.8
' {# F+ D# }" r& _$ Svgnd vss 0 0
; T+ K \) t& G8 l8 O0 H. q( R. ], z, hvin a 0 pulse(0 1.8 1n 0.5n 0.5n 4.5n 10n)
0 a5 s( `9 R8 `! Q5 h9 m7 @/ X*vin a 0 0.9. i/ P0 @. \7 Y& v
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- e6 j/ ~: u$ y$ D4 L% p0 h+ M+ x* y
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