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substrate stackup in ADS software

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rovi_30

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Hi! I am trying to create a substrate stackup in ADS for a 65nm technology. In the stackup I have to map a conducting material layer which passes through 3 layers of different dielectric constants. But the ADS tool does not allow the mapping of same conductor in different layers. Do you have any idea how can I solve this? sub.png
 

The easiest solution is to "stretch" one end of the via with the mouse, so that it goes through multiple dielectrics.
via_multiple_layer.PNG

Another approach is to use "derived layers" to create clones of your via
qthelp://ads.2016.01/doc/usrguide/Adding_Derived_Layers.html
and map these new via layers separately.
 

The problem is that I can not make the width of the conductor bigger than the width the dielectris. For example if Conductor is 900nm wide, and Dielectric-2 is 700nm wide, I can not make Conducter's width bigger than or equal to 700nm. That is why In the next dielectric layer I have to map the same conductor to achieve a 900nm width. But this is not allowed by the ADS software. Any idea how I can do this?
 

rovi_30 said:
Any idea how I can do this?
Click to expand...

You just need to split your bottom dielectric (dielectric4 in first post) into two pieces, so that you have a 200nm dielectric segment. Then, define the via to pass through dielectric2, dielectric3 and that new 200nm dielectric.
 

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