Microfabrication Fundamentals: Deposition, Lithography, and Etching

Modern technology relies on microscopic components, from the processors in our smartphones to the sensors in medical devices. Understanding how these tiny structures are built at the microscale is the first step toward entering the high-tech fields of semiconductors, nanotechnology, and microelectromechanical systems (MEMS). This text-only course guides you through the core physical and chemical processes used to manufacture modern microdevices. You will build a solid theoretical foundation in cleanroom operations, material properties, and the precise steps required to pattern silicon wafers. What you'll learn: Understand the fundamental principles of cleanroom environments, contamination control, and safety protocols; Explain physical and chemical thin-film deposition techniques, including sputtering and chemical vapor deposition; Master the photolithography process, from photoresist application to exposure and development; Compare wet and dry etching methods to selectively remove materials with high precision; Explore modern advancements in patterning, including extreme ultraviolet (EUV) lithography basics; Analyze common fabrication defects and troubleshooting strategies for quality control. The course begins with essential cleanroom terminology and wafer preparation before progressing through sequential deposition, patterning, and etching phases, concluding with modern industry trends. This course is designed for beginners, students, and aspiring hardware engineers with no prior manufacturing experience. Start reading today to unlock the foundational knowledge of semiconductor manufacturing.