This book deals with the recent development in VLSI technology with an interest in Memristor. The underlying concept of memristor is explained and provides in-depth understanding of implication function. It also gives the missing link between magnetic flux and charge. The book is replete with examples that simulate basic logic logic gates and full adder using Xilinx, done by the authors in their VLSI lab. Useful for: 1. Electronics engineers specializing in VLSI circuits,IC design and nano technology. 2. Students of electical, electronics and nano technology students. Inside: 1. What is memristor? 2. Evolution of fourth basic circuit element. 3. Implication funtion and memristor. 4. Need for memristor structures. 5. Link between flux and charge. 6. RTL structures, simulation results performances and impact of memristor.