[SI-LIST] Buried resister in High Speed Digital Design?

  • From: "Inmyung Song" <imsong@xxxxxxxxxxxxxx>
  • To: "Signal Integrity Mail Group" <si-list@xxxxxxxxxxxxx>
  • Date: Wed, 18 Jul 2001 14:02:57 +0900

Hello folks.

Is there anybody to know that what application support the Buried Reisistor?

I want to debug the board which has resistive layer in inner layer.

The stackup is below:

------------------- COMP
------------------- FR4
-------------------SIGNAL_2
-------------------Resistive Layer
-------------------FR4
-------------------GND
-------------------FR4
-------------------3.3V
-------------------FR4
                 |
                 |
...


How can I view the signal integrity in according to Resistive Layer?

Many tool is not supported the buried resister, is it right?

When I define the crosssection in tool, I have a big problem.

Signal_2 is conductor layer, and Resistive layer is conductor layer too. But 
not defined.
They need a dielectric between Signal_2 and Resistive layer but not existed in 
real world.
How can I set the crosssection in tool like that?


Thank you for your reading.

Any comment is good for me.


Inmyung.


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