Gas Sensors

Micronas is known and recognized in the automotive and industrial business as a reliable global partner for intelligent, sensor-based system solutions.

Micronas gas sensors are based on a unique and proprietary technology called mySENS. The special feature distinguishing Micronas devices from others is their special CCFET setup. The CCFET technology (Capacitive Coupled Field Effect Transistor) is the way our sensors detect gas concentration changes in the ambient air for a broad variety of applications.

For the detection of a target gas, a gas-sensitive layer is applied on a suspended gate that is mounted on top of a silicon chip. If this layer comes into contact with molecules of the target gas it responds with a change of its surface potential. The gas-sensitive layer is capacitively coupled to a large floating electrode which is connected to the floating gate of a conventional MOSFET (Metal Oxide Semiconductor Field-Effect Transistor).

Any gas-induced change of the gas-sensitive layer‘s surface potential is detected by the MOSFET and digitally processed by the integrated electronics.

What makes this way of gas detection so special? The interaction between the gas-sensitive layer and ambient gas molecules is a reversible dynamic process. This process takes place at room temperature allowing low-power, unheated operation for many gas species. All of this occurs without wear of the gas-sensitive layer.

By using different gas-sensitive layers, Micronas gas sensors are able to detect specific target gases like nitrogen dioxide (NO₂), ammonia (NH₃), hydrogen (H₂) and volatile organic compounds (VOC).

FOR AUSTRALIAN AND NEW ZEALAND CUSTOMERS ONLY: To order or to request for further information on Micronas Gas Sensor products, please send us an email at sales@glyn.com.au

To download the latest Micronas Product Catalogue, please click here