1. Definition

Microsystem: sensor actuator, data treatment with interface to the outside

1 - 100 um (smaller than human hair)

Transform signal from one domain to another domain (physical quantity ↔ electrical)

Electrical, mechanical, magnetic, optic

Combination of microsystems and multiple engineering fields

Why microsystems

Limited space available

Lighter→ less inertia→ short reaction times

Less energy

Production technologies do not allow to fabricate macroscopic systems

2. Components

3. Examples of microsystems

Human like sense of touch with capacitor membrane

Digital-matrix-led (micromirror device) Immunosensor (detect certain chemical elements responsible for disease)

Microfluidic system

4. Important points

Special environement

Special materials

Special processes