Electronics & Communication
pp. 108–117
Vol. 1, Issue 1
DOI
The Compltete VLSI Design Flow: From RTL Design to Semiconductor Fabrication
Very Large-Scale Integration (VLSI) design is a fundamental technology for developing modern integrated circuits that power consumer electronics, communication systems, automotive applications, and artificial intelligence hardware. This paper presents a comprehensive overview of the complete VLSI design flow, from Register Transfer Level (RTL) design and functional verification to logic synthesis, static timing analysis, physical design, power optimization, and semiconductor fabrication. It discusses the significance of verification, timing closure, and layout validation techniques such as Design Rule Checking (DRC) and Layout Versus Schematic (LVS) in ensuring reliable chip performance. The paper also highlights the role of Electronic Design Automation (EDA) tools and optimization strategies in designing high-performance, low-power, and manufacturable integrated circuits. This overview serves as a valuable reference for understanding the end-to-end VLSI design process and its importance in modern semiconductor engineering.
VLSI Design Flow
Register Transfer Level (RTL)
Logic Synthesis
Static Timing Analysis (STA)
Physical Design
Jayasoorya J SHETTY
28 Jul 2026
50 views
VDW-2026-377547E
Electronics & Communication
pp. 68–77
Vol. 1, Issue 1
DOI
Modelling and Simulation of MOSFET Transistor Characteristics Using SPICE
Abstract— The Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) is the cornerstone of modern CMOS and VLSI technology. Accurate modelling of its characteristics is essential for circuit design and performance optimization. This paper explores MOSFET transistor modelling based on the NPTEL course “The MOS Transistor Modeling” by Prof. Navjeet Bagga. The study covers the physical structure, MOS capacitor behaviour, threshold voltage derivation, and operating regions of the MOSFET. The classical Level-1 model equations for drain current in linear and saturation regions are derived and validated through extensive LTspice simulations. Simulated output (I_D vs V_DS) and transfer (I_D vs V_GS) characteristics show excellent agreement with theoretical predictions, with errors typically below 3%. Parametric analysis of W/L ratio further confirms the linear scaling of drain current. The work highlights both the strengths and limitations of the basic Level-1 model, particularly for long-channel devices. This study successfully bridges theoretical learning from NPTEL with practical simulation skills, serving as a valuable educational resource for students in microelectronics and VLSI design.
Keywords— MOSFET Modelling
MOS Transistor Modeling
Level-1 Model
Threshold Voltage
I-V Characteristics
Ramadas Vijendra
07 Jul 2026
95 views
VDW-2026-7ADDA47