Embedded ultrasonic sensors for automotive radar

Researchers at Fraunhofer Institute IZM, Germany, had developed embedded ultrasonic sensors for automotive radar with potential for wider applications. The researchers realized that the costs of developing such technology were reduced significantly by using a novel method. The lower-cost long-range automotive radar was also expected to provide significant benefits, along with protecting the driver and passengers in a vehicle traveling at high speeds. The Fraunhofer Institute played such a key role in the development of the technology due to the advantage of its Chip in Polymer technology. The Fraunhofer team used the Chip in Polymer approach along with another method, called Duromer Embedding. All the individual radar ICs were embedded by the Duromer process into a single molded module to assemble the 77 GHz radar, while Chip in Polymer was used to attach this 1 mm thick module to the core substrate.