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ALThe real fabrication of chip in the industry
🚀 Semiconductor Chip Fabrication Process – Step by Step Overview
This image illustrates the complete IC fabrication flow, showing how a silicon wafer is transformed into a fully functional chip through precise physical and chemical processes.
🔹 Wafer Preparation – High-purity silicon is grown, sliced, and polished into wafers
🔹 Oxidation – Silicon dioxide (SiO₂) is grown for insulation and protection
🔹 Photolithography – Circuit patterns are transferred using UV light and masks
🔹 Etching – Unwanted material is removed to form precise patterns
🔹 Doping (Ion Implantation) – Impurities are added to create N-type and P-type regions
🔹 Thin Film Deposition – Polysilicon, metal, and dielectric layers are deposited
🔹 Transistor Formation (FEOL) – MOS transistors are built
🔹 Metal Interconnect (BEOL) – Multi-layer metal wiring connects transistors
🔹 Wafer Testing – Electrical testing of each die
🔹 Dicing – Wafer is cut into individual chips
🔹 Packaging – Chips are mounted and wire-bonded
🔹 Final Testing – Packaged chips are verified for functionality
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