How to position the gates in a 4 bit decoder layout?

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sykab

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Hi!

I'm doing the layout of a 4 bit decoder.
The problem is that I have no idea how should I position the gates (ands and inverters) to use the lowest number of different metal layers.
Can anyone give me suggestions?

Thanks
 

decoder layout

Hi,

You can place them as a square shape.

Regards,

Analayout.
 

    sykab

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4-bit decoder

analayout said:
Hi,

You can place them as a square shape.

Regards,

Analayout.
Click to expand...

And how many metal layers should I use?

Thanks.
 

layout of 4-bit

Is this a 4 bit to 16 line decoder? This can be done with 1 metal layer.
 

    sykab

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4 bit decoders

Colbhaidh said:
Is this a 4 bit to 16 line decoder? This can be done with 1 metal layer.
Click to expand...

yes, it is.
Can you tell me how, please.

Thanks
 

14 bit decodierer

See attached - might help. It is extract from a training course.
 

    sykab

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decoder 1 to 4 bit

I need it ,thanks!!
 

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