Semiconductor manufacturing is a complex process that involves multiple critical steps to convert materials into advanced electronic devices, such as integrated circuits. Let's discuss six critical steps in semiconductor manufacturing⟦asml⟧:
Substrate Preparation: The process begins with a silicon wafer, which is cut from a crystalline silicon cylinder, known as an 'ingot', and polished to an extremely smooth surface.
Deposition: Various materials are deposited on the wafer, including oxides, metals, and doped semiconductor layers.
Photolithography: Photolithography techniques are used to transfer a specific pattern to the wafer, which defines areas where downstream processes such as doping and etching will take place.
Etching: Material is selectively removed from the wafer based on patterns established by photolithography.
Doping: A small number of 'doping' atoms are introduced to modify the electrical properties of the semiconductor regions.
Packaging: Devices are encapsulated for protection and connected to electrical terminals for interaction with external devices.
It is important to mention that this is a simplified summary. In reality, the semiconductor manufacturing process involves numerous intermediate stages and requires extremely precise control of process conditions.
Some companies like Intel and Samsung are involved in all the steps of the process, they are called I(ntegrated)D(evice)M(anufacturers) while others are specialized in one or few steps of the process.
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