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  3. Encounter different row sizes (is it possible?)

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Encounter different row sizes (is it possible?)

Thodoros
Thodoros over 11 years ago

 Hello,

 I have three (3)  kind of cells:

 1. the ones that are placed at the bottom of the design

2. the ones placed in the middle

3. and the ones placed at top.

 

These three kind of cells have different height but their vdd - gnd rails can overlap.

Is it possible to use encounter to place these cells?

For example I could have one site only for the bottom cells , one site for the middle many cells and one site only for the top cells.

 

Thanks for your help,

It will help me build a special design.

Regards,

Thodoros.

 

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  • fitz
    fitz over 11 years ago

    Thodoros:
    I thought about the optDesign issues some more and there are a couple of possible solutions.
    You could optDesign each cell island separately, ie. dont_touch, dont_use type 2&3 , then optDesign will work on type1 only.
    Or if you create a level of hierarchy out of  the islands. then you could work on the 3 blocks individually.
    Shawn

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  • fitz
    fitz over 11 years ago

    Thodoros:
    I thought about the optDesign issues some more and there are a couple of possible solutions.
    You could optDesign each cell island separately, ie. dont_touch, dont_use type 2&3 , then optDesign will work on type1 only.
    Or if you create a level of hierarchy out of  the islands. then you could work on the 3 blocks individually.
    Shawn

    • Cancel
    • Vote Up 0 Vote Down
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