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modelization-strategy.md [2026/06/24 15:49] – [Modelization] gauthier.roussilhe.extmodelization-strategy.md [2026/06/24 16:36] (current) – [How does this approach answer to our objectives?] gauthier.roussilhe.ext
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  <caption>Examples of recipe, travelers and steps distribution (source: Micron)</caption>  <caption>Examples of recipe, travelers and steps distribution (source: Micron)</caption>
 </figure> </figure>
- +## Modelization approach
-## Modelization+
  
 Our approach is based on three key factors: Our approach is based on three key factors:
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 Our aim is to define archetypes, defining these three factors, for each type of device (logic, DRAM, NAND) and their key characteristics (node size for logic and DRAM, number of layers for NAND). Our aim is to define archetypes, defining these three factors, for each type of device (logic, DRAM, NAND) and their key characteristics (node size for logic and DRAM, number of layers for NAND).
- 
-Our approach, based on averages, aims to respect the trade secrets of manufacturers and laboratories whilst providing a more precise basis for quantifying manufacturing processes, going beyond a basic approach based on cm² per die. 
  
 These factors are, of course, supplemented by traditional parameters used in this type of assessment, such as: These factors are, of course, supplemented by traditional parameters used in this type of assessment, such as:
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   * etc.   * etc.
  
-{{ :wafer-model-archetype.webp |800}}+ 
 +<figure center> 
 +{{:wafer-model-archetype.webp|800}} 
 + <caption>Simplified illustration of the modelization approach</caption> 
 +</figure> 
 +### How does this approach answer to our objectives? 
 + 
 +#### Improve existing models 
 +This approach provides a more precise quantification than the classic approach based on cm² per die. However, imec.netzero might already follow the same approach [To be discussed] 
 + 
 +#### Respect trade secrets 
 +Our approach, based on averages, aims to respect the trade secrets of manufacturers and laboratories. We don't need the precise total number of steps and the process type distribution, we just need to agree on representative averages (with min, max if possible). Working with average inputs/outputs per process type (CVD, dry etch, photolitho, etc.) allows to share agregate data that doesn't show actual recipes. 
 + 
 +#### Open/customizable 
 + 
 +[To be completed] 
 + 
 +#### Robust/representativeness 
 + 
 +[To be completed]