Philips MEMS Foundry’s Post

Two researchers recently succeeded in developing a pre-charged CMUT that can operate without an external bias. Their secret: making smart use of a charge-trapping layer that is embedded in the dielectrics between the top and bottom electrodes of these transducers. Marta Saccher: "The very fact that this layer is charged, was initially considered to be a failure. In fact, that is why the device that we worked on had been hidden inside a cupboard for six years.” “This is a very important step towards using CMUT for in-body devices,” Shin Kawasaki adds. “In a couple of years, we might even be able to use this technology to power heart implants.” The research paper on this topic was published by the scientific IEEE Open Journal on Ultrasonics, Ferroelectrics and Frequency Control and is currently even one of the top performing articles. Read the interview with Marta and Shinnosuke:  https://lnkd.in/e-Sm7qGS