Thick-Film Non-Reciprocal Ferrite Elements and Gunn Hybrid Oscillators in Modified Thick-Film Technology

Thick Film Ni-Ferrite Inductors

CO2 Selective Potentiometric Sensor in Thick-film Technology

A potentiometric sensor device based on screen-printed Nasicon films was investigated. In order to transfer the promising sensor concept of an open sodium titanate reference to thick film technology, "sodium-rich" and "sodium-poor" formulations were compared. While the "sodium-rich" composition was found to react with the ion conducting Nasicon during thermal treatment, the "sodium-poor" refere...

Thick-film Piezoceramic Micro-generators

A sensor node is generally small in physical size (typically a few cm or smaller) and consist of a sensor, a transceiver, and supporting electronics. They are connected as a wireless network and are sometimes isolated and embedded in structures, which are not easily accessible. The lifespan of the sensor node is critically dependent upon the power source it contains. Instead of using a limited ...

Microvaristors in thick-film and LTCC circuits

ZnO-based varistors protect electronic circuits against overvoltage. High temperature from the range of 1150–1300 C is required for proper sintering of such material. Varistor inks with lower firing temperature are needed for application in thick-film and LTCC technology. ZnO-based thick-film composition was prepared and varistors were fabricated on alumina and LTCC substrate. Different topolog...

Photoresist patterned thick-film piezoelectric elements on silicon

A fundamental limitation of screen printing is the achievable alignment accuracy and resolution. This paper presents details of a thick-resist process that improves both of these factors. The technique involves exposing/developing a thick resist to form the desired pattern and then filling the features with thick film material using a doctor blading process. Registration accuracy comparable wit...