ICC route之后verify_lvs后提示的短路现象如何解决
ICC 布线之后做lvs，提示我有部分net和电源或者地短路了。
观察版图，确实是短路了。这部分net通过过孔和电源短了。
这种情况下一般怎么办呢?是布局有问题吗?请不吝赐教
改呗
咋样解决的啊?
verify_lvs多做几遍，差不多了。
ICC里面的LVS很好修的阿 check的时候只需要检查short和open
只要保证calibre DRC没有base layer 的错 ICC里lvs可以过的话一般calibre的lvs也过了
不知你解决没有这个问题，我目前就是这个问题。不过我看了下版图 我报的那个short地方并没有发现short。
贴报告过来看看
短路问题通过verify_lvs -check_short_locator 找到了具体的short。 不过下面这两种错误我一直没解决。第一种应该是我的输入port悬空了。第二种是不是这种寄存器是两种端口 可以忽略了呢?
ERROR : area[(889.345,1049.450), (889.395,1049.500)]0.0025 um sqr.
ERROR : area[(899.345,1049.450), (899.395,1049.500)]0.0025 um sqr.
Total area error in layer 2 is 8.Elapsed =0:01:36, CPU =0:01:35
ERROR : area[(949.195,173.275), (949.325,173.325)]0.0065 um sqr.
ERROR : area[(952.565,285.775), (952.775,285.825)]0.0105 um sqr.
ERROR : area[(907.395,355.975), (907.615,356.025)]0.0110 um sqr.
ERROR : area[(767.195,485.375), (767.325,485.425)]0.0065 um sqr.
ERROR : area[(0.000,859.075), (0.050,859.125)]0.0025 um sqr.
ERROR : area[(0.000,869.075), (0.050,869.125)]0.0025 um sqr.
ERROR : OUTPUT PortInst U10160 S doesn't connect to any net.
ERROR : OUTPUT PortInst U181145 S doesn't connect to any net.
ERROR : OUTPUT PortInst U307148 CO doesn't connect to any net.
ERROR : OUTPUT PortInst U3067 S doesn't connect to any net.
ERROR : OUTPUT PortInst sm2_inist_subS/U10 CO doesn't connect to any net.
ERROR : OUTPUT PortInst sm2_inist_addK/U4383 CO doesn't connect to any net.
ERROR : OUTPUT PortInst sm2_inist_inver/sub11/U41 CO doesn't connect to any net.
ERROR : OUTPUT PortInst sm2_inist_inver/sub11/U8651 CO doesn't connect to any net.
ERROR : There are more errors than default Max Error Number 20.
** Total Floating ports are 20.
** Total Floating Nets are 0.
** Total SHORT Nets are 0.
** Total OPEN Nets are 0.
** Total Electrical Equivalent Error are 0.
** Total Must Joint Error are 0.
-- LVS END : --
Elapsed =0:02:14, CPU =0:02:13
Update error cell ...
1
icc里检查下short open就行了，其他不用管， 然后calibredrc lvs ant过了就行了 erc也要看一下
0.0多谢。 这么看来我的lvs算是过了吧这两种error可以忽略了吧
谢谢啦