graphical pcell stretch

[stroller]

hi,

i'd like to have the metal contact strip my transistor graphical pcell
grow in the y direction according to an expression (width - 2*myVar)
where myVar is a previously defined variable.

the problem is that when i put the stretch line down it overlaps the
diffusion under the metal also and when the cell grows in the y
direction the diffusion is affected by this stretch line.

how do i specifiy a stretch line on the pcell that will only affect one
of the layers underneath?

thx

 

[BigDog]

stroller wrote:

hi,

i'd like to have the metal contact strip my transistor graphical pcell
grow in the y direction according to an expression (width - 2*myVar)
where myVar is a previously defined variable.

the problem is that when i put the stretch line down it overlaps the
diffusion under the metal also and when the cell grows in the y
direction the diffusion is affected by this stretch line.

how do i specifiy a stretch line on the pcell that will only affect one
of the layers underneath?

thx

You will need to Pcell->Qualify the stretch line. By default, the
stretch line will affect any shape it crosses. By qualifying the line,
you can select exactly what shapes the stretch will apply.

-Brad

 

[stroller]

great, thx!