mugofgold

layout port name conflict

Discussion created by mugofgold on Oct 22, 2013
Latest reply on Oct 25, 2013 by dan_liddell

Hi,

 

I am having schematic with vss/vdd (lower-case) pwr/gnd pins and also defined in the layout as lower-case pins only. But somehow Calibre is converting the layout pins to upper-case and unless I use "SOURCE CASE NO" it's not passing.

 

I am having some standard cells in this cell and they have these pins defined (at the lower  hierarchy) in upper case.

 

But I don't want to use this option (at least for now!!). Is there a way that I could get a clean LVS?

--------------------------------------------------------------------------------

 

Net VDD                                                   VDD

--------------------------                                --------------------------

 

xxxxxx:neg                                    ** missing connection **

xxxxxx

 

Net VSS                                                   VSS

--------------------------                                --------------------------

 

xxxxxx:BULK                               ** missing connection **

xxxxxx

 

** no similar net **                                      vdd

** no similar net **                                      vss

 

------------------------------------------------------------------------------------

From the summary file:

 

   3 layout nets had all their pins removed and were deleted.

 

 

o Initial Correspondence Points:

 

   Ports:        vdd vss

------------------------------------------------------------------------------------

From the transcript:

--------------------------------------------------------------------------------

-----                                PORTS                                 -----

--------------------------------------------------------------------------------

 

vss (4.21,26.945) 133 cell1          vdd (5.655,26.975) 133 cell1

 

VSS (0.07,0) 132 cell2           VDD (0.07,1.68) 132 cell2

VDD (0.07,1.68) 132 cell5         ZN (0.49,0.84) 131 cell5

I (0.21,0.56) 132 cell6           ZN (0.77,0.84) 131 cell6

VSS (0.07,0) 132 cell7            VDD (0.07,1.68) 132 cell7

VSS (0.07,0) 132 cell8            I (0.07,0.84) 131 cell8

VDD (0.07,1.68) 132 cell8         ZN (0.35,0.84) 131 cell8

VSS (0.07,0) 132 cell9          VDD (0.07,1.68) 132 cell9

BULK (0.17,1.91) 131 cell10

MINUS (2.34,0.18) 133 cell10

PLUS (2.34,3.64) 131 cell10

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