kannanunni
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how to calculate M5 spacing while adding power mesh.
lef only having spacing table not the minimum spacing value. for higher metal layers its having minspacing value, lower layer spacing table only there.
so how to calculate spacing fro this table and what is PARALLELRUNLENGTH in that.
LAYER metal5
TYPE ROUTING ;
SPACINGTABLE
PARALLELRUNLENGTH 0.0000 0.9000 1.8000 2.7000 4.0000
WIDTH 0.0000 0.1400 0.1400 0.1400 0.1400 0.1400
WIDTH 0.2700 0.1400 0.2700 0.2700 0.2700 0.2700
WIDTH 0.5000 0.1400 0.2700 0.5000 0.5000 0.5000
WIDTH 0.9000 0.1400 0.2700 0.5000 0.9000 0.9000
WIDTH 1.5000 0.1400 0.2700 0.5000 0.9000 1.5000 ;
WIDTH 0.14 ;
PITCH 0.28 ;
Thanks in advance.
lef only having spacing table not the minimum spacing value. for higher metal layers its having minspacing value, lower layer spacing table only there.
so how to calculate spacing fro this table and what is PARALLELRUNLENGTH in that.
LAYER metal5
TYPE ROUTING ;
SPACINGTABLE
PARALLELRUNLENGTH 0.0000 0.9000 1.8000 2.7000 4.0000
WIDTH 0.0000 0.1400 0.1400 0.1400 0.1400 0.1400
WIDTH 0.2700 0.1400 0.2700 0.2700 0.2700 0.2700
WIDTH 0.5000 0.1400 0.2700 0.5000 0.5000 0.5000
WIDTH 0.9000 0.1400 0.2700 0.5000 0.9000 0.9000
WIDTH 1.5000 0.1400 0.2700 0.5000 0.9000 1.5000 ;
WIDTH 0.14 ;
PITCH 0.28 ;
Thanks in advance.