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各位好,
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" }% Q% r, B6 b! N5 I0 V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*****. b7 p; ]; \* |. U7 o" ]
Total number of traces buried under pads : 2
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) O4 B& D1 Y% Z****Summary : Signal Net Statistics for the Design*****
# Y7 W n7 |" E e( F1 ^ Total number of small shapes : 0
/ K$ v, c. d( k% Y' D2 X Total number of large shapes : 0
( l! l! t7 p+ p& r Total number of traces buried under traces : 0
1 ]5 D8 I) ?, _ Total number of traces buried under pads : 90- N* t& Q) c* D9 ]
Total number of traces overlapping along length : 0
& x' Y q7 g9 w( Q' [9 }$ ^ Total number of traces aligned along length : 30 b$ A) h1 A8 R2 B9 x. {. ?
Total number of traces with no reference : 05 Y$ a6 e& N: D1 K
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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!!!!!!!!3 W. A6 X+ U% W o/ P2 ^
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