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  3. What is a manufaturing grid ?

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What is a manufaturing grid ?

NAADHAN
NAADHAN over 16 years ago

Hi All,

                 Can anyone explain me what is a manufaturing GRID  & its significance in our design?

 

Thanks & regards,

NAADHAN

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  • andries
    andries over 16 years ago
    Hi,
    There are quite few: version 5.1, BUSBITCHARS "[" ;DIVIDERCHAR "/"  ;  &  PROPERTYDEFINITIONS
    were missing.
    In my file I  did BUSBITCHARS "[ ]" to make it run correctly.
    Now it is quite fine.
    If my documentation is written that

    Before you verify geometry, the design must meet the following conditions:

    The following LEF statements must be specified:

    ❑ CLEARANCEMEASURE

    ❑ USEMINSPACING statements for obstructions and pins

    For more information, see the LEF/DEF Language Reference.

    The design must be routed.

     
    and I see that you don't have CLEARANCEMEASURE like CLEARANCEMEASURE MAXXY ;
    but as I said your LEF file is working fine.
     
    Thanks a lot.
     
    PS. The log file:
     
    Loading Lef file Inputs/vs18tech.lef...
    ***ERROR*** <parse error> at line 44
    Last token was <um>
    **ERROR: (SOCLF-3): Error found when processing LEF file 'Inputs/vs18tech.lef'
    **ERROR: (SOCLF-26): Seems no technology information defined in fisrt lef file.
    Please rearrange the lef file order and make sure the technology lef file is the
    first one, exit and restart First Encounter.
    although the statement was at the right place.
     
    To start from begining I would say that somehow it was better when the statement was missing completly (see the log):
     
    **ERROR: (SOCLF-81): No MANUFACTURINGGRID value was given, it is set to minimum LEF unit of 0.005 um.
     
     
    but, it was always .... a but....
     
    at the routing moment the tools was complaining that the MANUFACTURINGGRID  was missing and comes up with errors.
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  • Layla
    Layla over 3 years ago in reply to andries
    andries said:
    версия 5.1

    Hey! I really liked version 5.1 although I thought that something more updated would be needed. In general, everything is ok.

    With&Regards, developer view

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  • Layla
    Layla over 3 years ago in reply to andries
    andries said:
    версия 5.1

    Hey! I really liked version 5.1 although I thought that something more updated would be needed. In general, everything is ok.

    With&Regards, developer view

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