Semiconductors drive technological innovation, from smartphones to quantum computers. As miniaturization reaches physical limits, next-generation device design demands new materials and architectures. Next-Gen Semiconductor Device Design delves into advanced concepts such as FinFETs, nanowire transistors, and 2D materials like graphene and MoS₂. The book explains fabrication techniques, scaling challenges, and emerging paradigms like spintronics and neuromorphic computing. It also highlights simulation tools and performance optimization strategies. With a focus on innovation and research, it equips engineers and students with knowledge of cutting-edge semiconductor technologies shaping the electronics industry.