Electrochemical Sensors

Electrochemical sensors detect ions, electrical conductivity, and material-dependent parameters in chemical and bioelectronic applications. At Fraunhofer IPMS, technologies are developed for this purpose, including ISFET solutions for aqueous environments, organic field-effect and electrochemical transistors, as well as chip-based test structures.

ISFET chips and ion-sensitive ISFETs enable pH and conductivity measurements. They are characterized at wafer level and transferred into module concepts using advanced packaging and interconnect technologies. Additional conductivity and temperature sensor structures can be integrated into comprehensive sensor systems. For organic electronics, OFET and OECT substrates provide reproducible platforms for the investigation of semiconductor materials, conductive structures, and sensitive layers. Key parameters such as conductivity, charge carrier mobility, on/off ratio, and contact resistance can be evaluated.

Applications range from environmental sensing and water monitoring to indoor farming, microfluidics, and healthcare solutions. The technologies also address flexible electronics, bioassays, and gas sensing. Fraunhofer IPMS combines chip design, wafer-level characterization, customized substrates, and pilot manufacturing with application-oriented sensor development. This enables solutions for industry, system developers, and research partners seeking to advance electrochemical sensing principles into robust sensor and test systems for chemical, biological, and material-related applications.