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What is the definition of LEF and DEF?

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Bella

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What is LEF (Library Exchange Format)? and What is DEF (Design Exchange Format)?. How they are used in ASIC?
 

CatKing

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lef def format

Check
hxxp://www.openeda.org/
for spec and source code.
 

albertyin

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what is lef

LEF is physcial data of cell library, DEF is P&R data
 

tukken

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lef and def

Lef is physical boundry and Pin location abstact file
 

daniel@2004

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what is lef def

roughtly to say, LEF is cell library data and process info, DEF is your design.
 

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