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各位好,
1 w! W/ u# R; n/ k, W最近在參考Foundry的LPE command file對寄生參數的寫法時,對ATTRIBUTE CAP的語法有些疑惑
6 \- m5 C: a3 a) ?, j, {5 b: @# D依照Dracula Reference內ATTRIBUTE CAP章節內Case 4的定義如下2 a% c! g( b9 L8 L
Case 4:3 D/ L1 u8 o& t7 M W5 S
PARASITIC CAP {subType} device_layer terminal_layer1 terminal_layer2
4 d( @6 o* u* p2 O( w( QATTRIBUTE CAP {subType} areaCoeff perimCoeff depthRange sidewallCoeff
4 E2 D4 s0 I2 S4 L且參考此章節Example 4 中的例子( g2 A5 x- f' M \3 I
*OPERATION
# u0 @" f* }! XPARASITIC CAP[F] M12 MET1 MET2
! A7 X# y& J: |* WATTRIBUTE CAP[F] 0.5 1.2 0.2 0.019 ; PIECE-WISE COEFFICIENT/ ^) ~: K% A2 g4 g$ k
ATTRIBUTE CAP[F] 0.5 1.2 0.6 0.032 ; PIECE-WISE COEFFICIENT0 P1 n7 c4 i' E; w& X4 G& F
LEXTRACT NEWE M12 BY CAP[F] PFILE & ; FLEXIBLE EQUATION
" M% o0 }0 j3 S$ SEQUATION C= 0.5*AREA +1.2*(PERI-TPR) + CLL
# }3 ~+ _: D7 P# J2 u; p' Q...$ P: a5 |4 H1 D) J1 U* I1 V& ^& _
*END# ?& y3 l3 I$ M3 l) ]: H% h- y7 p
D! U9 D3 j, Y T2 A7 n
其中(若以下解釋有錯請糾正我)
+ E; D4 W2 N5 E- TareaCoeff為M12的單位面積寄生電容值(Ca)
! a- h. J. Q+ o' x1 E" O4 v5 h( PperimCoeff為M12的邊緣電容值( `+ @- e1 F# s4 D
depthRange為M12距離MET1的距離1 H& a( R; ^! R; M! |5 h
sidewallCoeff為不同距離區間下M12與MET1的Fringe電容值$ V- O& ~9 {8 }
$ g: F4 { @- S1 F6 b6 o以下為我節取一段Foundry的LPE command q; }; t0 T$ e% t2 n+ v- p$ i7 \
PARASITIC CAP[A3] M12 ME1 ME2
( p# `- N% ?1 u5 C) v! L' R ATTRIBUTE CAP[A3] 3.871E-05 4.2267E-05 0.42 1.6709E-05' m2 ^ u2 i3 T! R9 b- U- W0 t
ATTRIBUTE CAP[A3] 3.871E-05 4.2267E-05 0.966664 4.20651E-05# d1 q& Y5 ]. ^3 D8 T) X5 {$ O9 C9 [' k
ATTRIBUTE CAP[A3] 3.871E-05 4.2267E-05 1.51333 5.99823E-05
8 G6 y8 ]5 B% G# z, j- o ATTRIBUTE CAP[A3] 3.871E-05 4.2267E-05 2.06 7.1379E-05
! u" x3 ^- e- h6 G; n' r ATTRIBUTE CAP[A3] 3.871E-05 4.2267E-05 2.60666 7.83301E-05
2 A% V. ~ u' o" R- k ATTRIBUTE CAP[A3] 3.871E-05 4.2267E-05 3.15334 8.2139E-05
5 Y, ~) `3 R/ u, K9 @& Z為何ME1距離M12越遠Fringe電容值越大?( A0 I$ D* M- S
電容不是兩端越遠電容值越小嗎?% Z0 ^' w& `- T8 P, D0 @
還是我根本就理解錯誤?; ]2 I& D: h" |/ V$ p3 x
懇請各位不吝指教,感謝!!感謝!! |
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