This document provides an overview of microelectromechanical systems (MEMS) technology and its applications. It discusses that MEMS integrate electrical and mechanical components on a silicon chip using microfabrication techniques. MEMS devices can include microsensors to detect things like pressure, temperature, or chemicals and microactuators to move or control small devices. Some key applications of MEMS mentioned are in automotive (airbags, engine sensors), biomedical (implantable devices, lab-on-a-chip), telecommunications (mobile phone components), consumer products (inkjet printers, game controllers) and aerospace (flight sensors, laser guidance). The document also reviews common MEMS fabrication methods like bulk micromachining, surface