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試試 Net 指令+ h4 B B P# i9 \9 M0 d
Layer operation
6 n8 t& O) j( r, oNET layer name [… name]
/ V- V2 R& ?/ C9 Q+ BParameters `( u" t0 h9 b1 _% P
• layer
# A0 P4 L: H5 J( b" K9 fA required original layer or layer set, or a derived polygon layer.
4 j, E: S9 Z5 R* b• name
0 R8 P1 G( y6 k! aA required name of a net, which can contain one or more question mark (?) characters. The7 v" q" s/ z" a2 \) D/ h, e6 i
? is a wildcard character that matches zero or more characters. You can specify name any/ H& z0 ]/ V% O4 @- Y
number of times in one statement. The name can be a string variable (see Variable).
& ^; p4 x! y7 @ P$ e. C9 PDescription
5 V6 I `3 z. F8 xSelects all layer polygons that belong to the net having the specified name. To avoid ambiguity,
3 m+ z2 r7 z5 V! p# J: q5 jyou must use the parameters in layer name order.' ^2 v+ H3 T+ v1 D
Note# _7 g! _8 l8 I! S
Do not use this operation to obtain net shorting information. The Net operation uses net
6 |* s! m e' v# ` y y; w/ k% Anames assigned by the connectivity extractor. If the connectivity extractor encounters/ y6 R( O7 N8 n+ l' y
shorted nets, it assumes it has found a single net, and assigns it one name.
Y& b# c) d* _" PThe connectivity on layer must be established through a connectivity operation.& I; ]1 r, p/ O3 B
See also Not Net, Net Area, Connect, Sconnect, and Stamp.
3 ?1 x5 { `" z. o! s4 XExamples6 V% x: [( C: F8 a9 f' b( ^
METAL_SP {( \9 C/ t1 H0 i' I3 s8 J* Y
@ VDD metal must be spaced at 4.5 microns
5 C$ s" P, O: |/ O, K( v@ VCC metal must be spaced at 4 microns
% ^+ w0 j7 h" V: B- Cvdd_metal = metal net vdd
' b& E( k2 J" c8 n9 l. R& nvcc_metal = metal net vcc% I; e3 k1 N) C7 a' T3 k
external vdd_metal < 4.5
9 D* b4 G# i& D. T# t% bexternal vcc_metal < 4.0 |
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