Présentation

EZMod3D

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EZMod3D is a 3D multi-domain physics simulation software tool primarily developed to address Integrated Circuits (IC) and Printed Circuit Boards (PCB) design.

Why a new tool?

EZMod3D is the first tool addressing designers concerns for advanced nodes and complex designs (System/ICs) :

Ease of Use

  • Intuitive GUI: no training needed
  • Simple tech files: only material properties and layers thickness.
  • Import / export from / to electronics industry standards GDS2, Gerber, Spice
  • Spice export

Accuracy

  • Field solver: only simple physical data, no complex rules
  • Can handle a very large number of meshes

Low Cost

  • License fees << saved costs on a single project

1. Some concerns are poorly addressed by existing tools.  

Substrate parasitic coupling   

  • Existing tool usually require difficult to create tech files and generate hard to use results
  • EZMod3D requires only materials properties and layers thickness.
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  • EZMod3D generates an equivalent netlist interconnecting declared pins, making it possible to simulate actual coupling.

Thermal coupling (static and dynamic)   

  • Only few (expensive) tools actually do that.
  • EZMod3D can display frequency dependent magnitude and phase of temperature variations in a chip. Here at 1 Hz:
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    EZMod3D brings an efficient and easy to use solution to these concerns, limiting the number of runs and drastically cutting costs and delays.

    No need to define complicated tech files or coupling rules. Just define materials properties and layers thickness.

2. Rule based extractors definitely lack accuracy   
   (for advanced nodes or high-performance designs)
 

3ML MOM cap (active and parasitic)   

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EZMod3D uses a 3D finite elements analysis that can reach the required accuracy. Thanks to its unique solving algorithm, it can address relatively large designs. The Record so far was:

  • 683 million nodes, then
  • 2.5 billion nodes, and now …
  • 11 billion nodes

Again, no need to define complicated tech files or coupling rules. Just define materials properties and layers thickness.

3. The design flow in use for about 40 years reaches its limits.  

Classic Design Flow   

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It is only at the end of the loop that one can realize there is an issue. Then iterations are required generating delays and costs.

EZMod3D allows parasitic extraction all along the flow from floor plan to leaf cells and even down to components or just only routing, minimizing iterations, saving time and money.

No need for LVS correct to perform an extraction. A GDS defining geometry and pins is sufficient.

For instance, a bus equivalent schematic can be extracted and used for driver design...

4. EZMod3D Limitations  

EZMod3D is a stationary solver    
that does not take into account propagation   
  • This is also the case for all localized constants extraction tools (R, C, CC, RCC) …
  • … But EZMod3D has a distributed frequency domain mode to model dynamic behavior.
  • And EZMod3D can model transmission lines by separating R, C, L and K on a short enough line segment.
EZMod3D is a true 3D Finite Elements solver    
that cannot extract an entire SOC   
  • Few tools actually do that, most use random walk and do not achieve the same accuracy.

5. How does EZMod3D compare to other tools ?  

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6. EZMod3D is a multi-domain tool  

Thanks to the analogy of diffusion equations in different domains, EZMod3D engine can address the following domains:

  • Resistive : Analysis of resistance, parasitic resistance, IR drop
  • Capacitive : Analysis of capacitance, parasitic capacitance, full capacitive coupling
  • Thermal : Analysis of self heating, thermal transfer
  • Magnetic : Analysis of magnetic fields
  • Chemical : Analysis of chemical species diffusion in a solution
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7. Application examples  

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