The 3rd International Conference on Microelectronic Devices, Circuits and Systems (ICMDCS 2021) will be held at the Vellore Institute of Technology (VIT), Vellore India from 11th to 13th August 2022. The conference covers the subject areas including digital IC design, analog/RF/Mixed Signal IC design, Device Modeling and Technology, RF communication circuits, embedded systems; nonlinear circuits, and system In addition to the technical papers, the conference also covers tutorials on recent advancements in the above-said areas, Keynote and Plenary sessions by leading industry leaders and renowned academicians. It is planned to publish the proceedings with Springer in their Communications in Computer and Information Science Series (Final Approval Pending).