這是銅互連線電場仿真模型,區(qū)域1、9是SiO2,區(qū)域2、3是Ta,區(qū)域4、5是銅,區(qū)域6、8是SiCN,區(qū)域7是SiCOH。區(qū)域五為正電壓,區(qū)域四接地,我選用了PLANE121,材料只需要定義介電常數(shù),但是金屬沒有介電常數(shù)啊,銅和鉈要怎樣定義。窟有電壓要怎樣加?
以下是我編寫的一部分APDL語言
/PREP7
/TITLE, CU INTERCONNECTS
/replot
ET,1,PLANE121
V1=5
V0=0
MP,PERX,1,? !銅的介電常數(shù)
MP,PERX,2,? !鉈的介電常數(shù)
MP,PERX,3,4.2
MP,PERX,4,3.0
MP,PERX,5,3.9
k,1,-100e-9,0
k,2,100e-9,0
k,3,100e-9,50e-9
k,4,50e-9,50e-9
k,5,-50e-9,50e-9
k,6,-100e-9,50e-9
k,7,-100e-9,60e-9
k,8,-60e-9,60e-9
k,9,-50e-9,60e-9
k,10,50e-9,60e-9
k,11,60e-9,60e-9
k,12,100e-9,60e-9
k,13,100e-9,100e-9
k,14,60e-9,100e-9
k,15,50e-9,100e-9
k,16,-50e-9,100e-9
k,17,-60e-9,100e-9
k,18,-100e-9,100e-9
k,19,-100e-9,110e-9
k,20,100e-9,110e-9
k,21,100e-9,160e-9
k,22,-100e-9,160e-9
a,1,2,3,4,5,6
a,12,11,14,15,10,4,3
a,5,9,16,17,8,7,6
a,11,12,13,14
a,7,8,17,18
a,4,5,9,10
a,9,10,15,16
a,13,18,19,20
a,20,19,22,21
/pnum,area,1
/replot
Aplot
/show,jpeg
aplot
/show,close
ASEL,S,AREA,,1,9 !設(shè)置材料屬性
AATT,5
ASEL,S,AREA,,2,3
AATT,2
ASEL,S,AREA,,4,5
AATT,1
ASEL,S,AREA,,6,8
AATT,3
ASEL,S,AREA,,7
AATT,4
ASEL,ALL
LESIZE,ALL,,,8 !space=8網(wǎng)格劃分最后一段是第一段的8倍
LSEL,ALL
SMRTSIZE,3
MSHAPE,1 ! 三角形
AMESH,ALL
NSEL,S,LOC,Y,60e-9,100e-9 !加載荷,胡亂整的,求大神指點
NSEL,R,LOC,X,-100e-9,-60e-9
D,ALL,VOLT,V1
NSEL,S,LOC,Y,60e-9,100e-9
NSEL,R,LOC,X,60e-9,100e-9
D,ALL,VOLT,V0
NSEL,ALL
FINISH
![ANSYS電場仿真]()
結(jié)構(gòu).png |