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  3. Having trouble reconciling the LEF Tech file with the PDK...

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Having trouble reconciling the LEF Tech file with the PDK tech file

FormerMember
FormerMember over 11 years ago

I am trying to create a standard cell library in OA using the LEF tech file from the foundry and a standard OA tech file and standard cell libary that I can use in Encounter. I have been referencing the application note: Open Access Reference Library Import. 

When I try to lefin the lef tech file I get:

 INFO: (OALEFDEF-23073): /net/lsa/shared/cadence_foundry/on/c3_1_2/techFiles/lef/amis350cxakxx_ttt.lef(15-29) : Property RESISTANCE does not match the referenced technology database: Cannot modify a referenced technology database. A new constraint cdcResistance will be created instead..

INFO: (OALEFDEF-50109): /net/lsa/shared/cadence_foundry/on/c3_1_2/techFiles/lef/amis350cxakxx_ttt.lef(15-29) : Property CAPACITANCE does not match the referenced technology database: Cannot modify a referenced technology database. Technology information was ignored. Ensure the technology data in this LEF file matches the referenced technology database.

INFO: (OALEFDEF-50109): /net/lsa/shared/cadence_foundry/on/c3_1_2/techFiles/lef/amis350cxakxx_ttt.lef(15-29) : Property EDGECAPACITANCE does not match the referenced technology database: Cannot modify a referenced technology database. Technology information was ignored. Ensure the technology data in this LEF file matches the referenced technology database.

ERROR: (OALEFDEF-50109): /net/lsa/shared/cadence_foundry/on/c3_1_2/techFiles/lef/amis350cxakxx_ttt.lef(15-29) : Antenna ratios does not match the referenced technology database: Cannot modify a referenced technology database. Technology information was ignored. Ensure the technology data in this LEF file matches the referenced technology database.

INFO: (OALEFDEF-23073): /net/lsa/shared/cadence_foundry/on/c3_1_2/techFiles/lef/amis350cxakxx_ttt.lef(34-47) : Property RESISTANCE does not match the referenced technology database: Cannot modify a referenced technology database. A new constraint cdcResistance will be created instead..

INFO: (OALEFDEF-50109): /net/lsa/shared/cadence_foundry/on/c3_1_2/techFiles/lef/amis350cxakxx_ttt.lef(34-47) : Property CAPACITANCE does not match the referenced technology database: Cannot modify a referenced technology database. Technology information was ignored. Ensure the technology data in this LEF file matches the referenced technology database.

INFO: (OALEFDEF-50109): /net/lsa/shared/cadence_foundry/on/c3_1_2/techFiles/lef/amis350cxakxx_ttt.lef(34-47) : Property EDGECAPACITANCE does not match the referenced technology database: Cannot modify a referenced technology database. Technology information was ignored. Ensure the technology data in this LEF file matches the referenced technology database.

ERROR: (OALEFDEF-50109): /net/lsa/shared/cadence_foundry/on/c3_1_2/techFiles/lef/amis350cxakxx_ttt.lef(34-47) : Antenna ratios does not match the referenced technology database: Cannot modify a referenced technology database. Technology information was ignored. Ensure the technology data in this LEF file matches the referenced technology database.

INFO: (OALEFDEF-23073): /net/lsa/shared/cadence_foundry/on/c3_1_2/techFiles/lef/amis350cxakxx_ttt.lef(52-66) : Property RESISTANCE does not match the referenced technology database: Cannot modify a referenced technology database. A new constraint cdcResistance will be created instead..

INFO: (OALEFDEF-50109): /net/lsa/shared/cadence_foundry/on/c3_1_2/techFiles/lef/amis350cxakxx_ttt.lef(52-66) : Property CAPACITANCE does not match the referenced technology database: Cannot modify a referenced technology database. Technology information was ignored. Ensure the technology data in this LEF file matches the referenced technology database.

INFO: (OALEFDEF-50109): /net/lsa/shared/cadence_foundry/on/c3_1_2/techFiles/lef/amis350cxakxx_ttt.lef(52-66) : Property EDGECAPACITANCE does not match the referenced technology database: Cannot modify a referenced technology database. Technology information was ignored. Ensure the technology data in this LEF file matches the referenced technology database.

ERROR: (OALEFDEF-50109): /net/lsa/shared/cadence_foundry/on/c3_1_2/techFiles/lef/amis350cxakxx_ttt.lef(52-66) : Antenna ratios does not match the referenced technology database: Cannot modify a referenced technology database. Technology information was ignored. Ensure the technology data in this LEF file matches the referenced technology database.

I can't even find any resistance or capacitiance specs in the pdk tech file. I tried doing a oa2lef and looking at the tech file as a lef file but still didn't see any resistance or capacitance specs. I saw this:
 
 LAYER M1
  TYPE ROUTING ;
  DIRECTION HORIZONTAL ;
  PITCH 1.2 1.2 ;
  WIDTH 0.5 ;
  OFFSET 0.6 0.6 ;
  SPACING 0.5 ;
  SPACING 1 RANGE 10.01 10000 ;
  SPACING 0.5 SAMENET ;
  THICKNESS 7300 ;
  ANTENNAMODEL OXIDE1 ;
  PROPERTY eqPinLimit 1000000 ;
  PROPERTY verticalJogLength 2.14748e+09 ;
  PROPERTY routingGrid 0.05 ;
  PROPERTY horizontalJogLength 2.14748e+09 ;
  PROPERTY exit 1 ;
END M1
 
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