two ground in the calibre lvs command file

alan0520

In the process of nwell,psub,如何分別兩個ground(AGND,DGND)分別在layout和calibre lvs command file該如何處理?

motofatfat

通常會多一層 CAD LAYER 來區分
T ㄉ 是 PSUB2 Uㄉ是 SPE＿ＧＮＤ
- o- S+ d$ i; D* d# R) r7 K' s來做區分   事實上還是會　soft connect

motofatfat

通常會多一層 CAD LAYER 來區分
2 j' X; s1 c0 ?! }& DT ㄉ 是 PSUB2 Uㄉ是 SPE＿ＧＮＤ
% s' ~* [% W- h  {& ^來做區分   事實上還是會　soft connect

rd66529

謝謝你啦~受益良多阿~感謝大大無私地分享

filterlife

psub2  and seperate gnd,  A “soft connected” node is one that has been connected through a nonrouting layer (Figure).
( S) B2 ^, W$ _) M$ ?- y. i) t- VNonrouting layers are usually identified as such because they are highly resistive and result in poor circuit performance.

liu.leon

% L4 n& ]' x9 h  x' O
這是騙calibre lvs command file tools 的一種方法, 但也有另一種方法,是可以不用加PSUB2~~也可以達到分離(不是騙tool)