When a voltage is applied to the metal gate, the semiconductor surface changes its carrier concentration.
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The MOS structure is essentially a consisting of a metallic gate, an insulating oxide layer, and a semiconductor substrate. When a voltage is applied to the metal
Explore the (like FinFETs or Gate-All-Around nanosheets).
Can a book written about silicon and silicon dioxide apply to modern chips? Yes, through structural analogy. As transistors shrank below 45nm, SiO2cap S i cap O sub 2 Can a book written about silicon and silicon
Understanding MOS technology means understanding:
), and a top metal electrode (or heavily doped polysilicon). The core functionality lies in manipulating the electrical properties of the semiconductor surface using voltage applied to the metal gate. The core functionality lies in manipulating the electrical
The Metal-Oxide-Semiconductor (MOS) structure is arguably the most important technological achievement of the 20th century. It is the heart of the MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor), the fundamental building block of nearly all integrated circuits, from microprocessors and memory chips to sensors and power devices. Understanding the physics and technology of the MOS system is therefore essential for anyone involved in semiconductor devices.
The book was written to transition the field from introductory concepts to the state-of-the-art research required for high-performance integrated circuits. Its primary goals include:
The authors break down the Metal-Oxide-Semiconductor structure in extreme detail. This includes:
The elegant physics of the MOS structure is useless without a reliable and repeatable method to manufacture it. The second half of the Nicollian and Brews book is dedicated to the technology of growing high-quality oxides, depositing gate electrodes, and forming source/drain junctions.