librarys used in the EDA tools

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Hi, could you describe these librarys and where to use them（in which tool）
1. tlf
2. lef
3. def
4. lib
5. db
6. cdb

thanks in advance！
 

Hi, could you describe these librarys and where to use them（in which tool）
1. tlf
2. lef
3. def
4. lib
5. db
6. cdb

LEF- Has info abt metals via contacts. Used in Place and Route, Synthezier. Also needed in parasitic extraction if you are using Star-RCXT tool.

LIB- Has all cell timing info. Used in PLACE and ROUTE and Synthesizer.

DEF- Used in Star-RCXT for parasitic extraction. Could have more uses, I am not aware of it.

DB- synopsis data base file. Used in Star-RCXT, Tetramax and many more.

I am not aware of the remianing.

Hope this helps.
 
Hi,

tif is same as .lib ( It contains timing information)
cdb is noise library. (cdb is input for Cadence CeltIC)
 

.tlf is Tech LEF file..
This file contains all your technology related info like metal width & spacing , Via rules & Antenna details. PD tools will read this file before doing routing & it take care of these rules while doing routing to avoid the violations.

.cdb is Layout databse of std cells.
You can use this file to view the std cell layout.

I think u have got the answers for the rest..
 

Some more details about the files

LEF- Library exchange format- Contains information about the physical view of standard cells - ports, power rails, obstructions etc. Typically this file is used by Cadence routing tools.

DEF- Design exchange format- Just another format for exchanging routed designs.
lib- timing library for synthesis and sta
db- compiled lib file- generated using library compiler
 

cdb : cadence database
db database /synopysys
 

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