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intro_wafer [2025/11/24 10:12] – [How is it manufactured?] louiseintro_wafer [2025/12/05 17:03] (Version actuelle) – [What paths/ideas should be explored?] arthur
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-## Introduction +## System definition
- +
-### Definition+
  
 A silicon wafer is a thin slice of silicon (semiconductor material) that is used in the manufacturing of integrated circuits.   A silicon wafer is a thin slice of silicon (semiconductor material) that is used in the manufacturing of integrated circuits.  
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-## Manufacturing+## Life Cycle
  
-### What is it made of?+### Manufacturing
  
-A silicon wafer is made from single-crystal silicon, which is derived from high-purity sand.  +#### What is it made of? 
-### How is it manufactured?+ 
 +A silicon wafer is made from single-crystal silicon, which is derived from high-purity sand. 
 + 
 +#### How is it manufactured?
  
 The process involves purifying the sand, melting it, and re-crystallizing it into a large, pure silicon ingot (Czochralski process). This ingot is then sliced into thin discs, which are polished to a mirror-like finish to form the wafer. The process involves purifying the sand, melting it, and re-crystallizing it into a large, pure silicon ingot (Czochralski process). This ingot is then sliced into thin discs, which are polished to a mirror-like finish to form the wafer.
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 See Gauthier's posters for more details See Gauthier's posters for more details
  
-### Who are the main manufacturers?+#### Who are the main manufacturers?
  
 For logic wafers: Intel, AMD, Qualcomm. They rely on foundires like TSMC and GlobalFoundries. For logic wafers: Intel, AMD, Qualcomm. They rely on foundires like TSMC and GlobalFoundries.
 For memory wafers: For memory wafers:
 +
 * NAND: Samsung, Kioxia, Western Digital * NAND: Samsung, Kioxia, Western Digital
 * DRAM: Samsung, SK Hynix, Micron Technology * DRAM: Samsung, SK Hynix, Micron Technology
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 The semiconductor industry is comprised of three main types of companies, each playing a distinct role: The semiconductor industry is comprised of three main types of companies, each playing a distinct role:
 +
 * IDMs (Integrated Device Manufacturers): Perform all stages from design to manufacturing and sales in-house. Examples include Intel, Texas Instruments, Samsung Electronics, and Micron Technology. * IDMs (Integrated Device Manufacturers): Perform all stages from design to manufacturing and sales in-house. Examples include Intel, Texas Instruments, Samsung Electronics, and Micron Technology.
 * Fabless Companies: Design and sell chips but outsource manufacturing to foundries. Notable fabless companies are Nvidia, Qualcomm, AMD, Apple, Broadcom, MediaTek, and Marvell Technology Group. * Fabless Companies: Design and sell chips but outsource manufacturing to foundries. Notable fabless companies are Nvidia, Qualcomm, AMD, Apple, Broadcom, MediaTek, and Marvell Technology Group.
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 TBC TBC
 +
 +
 ### What are the main environmental impacts associated to the manufacturing processes? ### What are the main environmental impacts associated to the manufacturing processes?
  
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 TBC TBC
- 
 ### What paths/ideas should be explored? ### What paths/ideas should be explored?
  
 * Confront Negaoctet's datasets and imec results in order to understand what are the reasons for the differences * Confront Negaoctet's datasets and imec results in order to understand what are the reasons for the differences
  
 +* Estimate the environmental impact of the wafer packaging [[categorie:page#ici|wafer packaging]]
intro_wafer.1763975523.txt.gz · Dernière modification : de louise