MASK and DRAWN LAYOUT

[sathi.ec]

drawn layout

Hi frs,

What is the difference between a mask layout and a drawn layout in an IC layout?

 

[truebs]

Hi...

A Mask layout and Drawnt Layout mainly have similar kind of design methods, however the difference lies in the stage of fabrication where these are used.

A mask layout is used at various stages in fabrication say from deposition to well formation,diffusion ,gate formation etc.

Whereas a drawn layout is used as a starting document in fabrication. After the design is complete in frontend, the layout is what is required to be made to start the fabrication process.

Please refer to Mordern VLSI design by Wolfe for more details...thanks

 

[limingchou]

when design the circuit,
we consider only the drawn layout.

and the foundary will consider the mask layout.
there are two kinds of mask layout: pos and neg mask layout

 

[nandu_r]

mask layers created in by cobination of tha layout drawn layers

 

[huojinsi]

Mask has clear and dark difference,so u must know where is data area correspond to mask when drawing layout .

 

[sathi.ec]

THanks to all