关于shield线，floating怎么能够全部找出来？

漫天游侠

shield 没有接在vss上面，floating在哪里，怎么能够更快速找出来。

或者大家在做vss shield的时候就直接先打孔，以免后续没接，经验丰富的layout手法是怎样做的呢？

825555056

ERC里有。。floating net

825555056

ERC Pathchk !LABELED NOFLOAT



Specification statement
ERC PATHCHK
{labeled_flag | power_ground_flag [operand power_ground_flag]}
[POLYGONS NETS | POLYGONS | NETS]
[BY LAYER] [BY CELL | FLAT]
[PORTS ALSO] [NOFLOAT] [EXCLUDE UNUSED]
[EXCLUDE SUPPLY]
Used during circuit extraction in Calibre nmLVS/nmLVS-H and ICtrace Mask mode.

A required string that specifies how the tool reports a net that does or does not have a path to
a labeled net. This option uses top-level text objects that are neither power nor ground net
labels. Possible choices are:
LABELED — Reports nets with a path to a labeled (texted) net.
! LABELED — Reports nets with no path to any labeled (texted) net.
where the exclamation mark (!) is synonymous with Boolean NOT

NOFLOAT
An optional keyword that instructs the statement to ignore floating nets. Floating nets are
nets that are not connected to any devices.

haydnzhang

ERC Pathchk !LABELED BY LAYER
把这行加到lvs.com

漫天游侠

haydnzhang 发表于 2023-5-5 09:57
ERC Pathchk !LABELED BY LAYER
把这行加到lvs.com

lvs.com是在哪里啊？

漫天游侠

825555056 发表于 2023-5-4 17:44
ERC Pathchk !LABELED NOFLOAT

                               
登录/注册后可看大图

是在这里吗？
怎么设置

漫天游侠

825555056 发表于 2023-5-4 17:44
ERC Pathchk !LABELED NOFLOAT

                               
登录/注册后可看大图

没懂，是在这么怎么设置吗？

漫天游侠

825555056 发表于 2023-5-4 17:36
ERC里有。。floating net

我这里ERC就只有 ERC Results    ERC summary

Koizon

漫天游侠 发表于 2023-5-5 13:12
lvs.com是在哪里啊？

include进去

haydnzhang

这个适用calibre 跑lvs的。
1）4#的加到lvs文件里。
2）查看lvs结果就可以看到会把m1 m2 m3...所有的金属悬空列出。