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标题: 求助,在用system SI 提取S参数时出现以下错误 [打印本页]

作者: lwhzwlw    时间: 2015-10-8 09:23
标题: 求助,在用system SI 提取S参数时出现以下错误
各位好,; J, N; G, y8 q; z- m
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新人向各位请教一个问题, 在使用SYSTEM SI 的提取POWER SI中PCB的S参数时,出现错误如下:
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****Signal Net Statistics for Net DDR_DQS3M*****
/ x. }# X, P4 B7 N7 p8 c6 C Total number of traces buried under pads :  2, d1 L; v* D2 l

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4 P- v: T( H% R( C****Summary : Signal Net Statistics for the Design*****
, W+ B- \8 H  t% {4 l Total number of small shapes :  0. Y0 @% u9 M) r- {% U) w3 M
Total number of large shapes :  0
$ }" Q5 r9 b$ }; \ Total number of traces buried under traces :  0' t& l- s: f/ y
Total number of traces buried under pads :  904 s0 s+ `2 y. n6 b' u. d
Total number of traces overlapping along length :  0
1 I" E% v8 y7 n8 g6 \7 {- O# |8 _" i Total number of traces aligned along length :  3
+ W, H* Y+ ^: o Total number of traces with no reference :  0
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请问 traces buried under pads和traces aligned along length 是什么意思啊?怎样才能消除错误?感激不尽!!!!!!!!
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