Search for dissertations about: "electroacoustic devices"

Showing result 1 - 5 of 6 swedish dissertations containing the words electroacoustic devices.

2. 1. AlN Thin Film Electroacoustic Devices

   Author : Gonzalo Fuentes Iriarte; I.V. Katardjiev; G.F. Iriarte; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical engineering; Elektroteknik; elektronik och fotonik; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik; elektronik; Electronics;

   Abstract : Recently, the enormous growth in personal communications systems (PCS), satellite communication and various other forms of wireless data communication has made analogue frequency control a key issue as the operation frequency increases to the low/medium GHz range. Surface acoustic wave (SAW) and bulk acoustic wave (BAW) electroacoustic devices are widely used today in a variety of applications both in consumer electronics as well as in specialized scientific and military equipment where frequency control is required. READ MORE

4. 2. Advanced Thin Film Electroacoustic Devices

   Author : Johan Bjurström; Ilia Katardjiev; Paul Muralt; Uppsala universitet; []
   Keywords : Technology; aluminum nitride; FBAR; shear mode resonator; lamb wave devices; liquid sensor; biosensor; temperature compensation; reactive sputtering; TEKNIKVETENSKAP; TECHNOLOGY; TEKNIKVETENSKAP;

   Abstract : The explosive development of the telecom industry and in particular wireless and mobile communications in recent years has lead to a rapid development of new component and fabrication technologies to continually satisfy the mutually exclusive requirements for better performance and miniaturization on the one hand and low cost on the other. A fundamental element in radio communications is time and frequency control, which in turn is achieved by high performance electro-acoustic components made on piezoelectric single crystalline substrates. READ MORE

5. 3. Fabrication of Electroacoustic Devices for Integrated Applications

   Author : Johannes Enlund; Ilia Katardjiev; Jörgen Olsson; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering physics; Teknisk fysik; Elektronik; Electronics;

   Abstract : Electroacoustic technology has in many ways revolutionised the wireless telecommunication industry. The IC compatible fabrication technique of thin film electroacoustic devices has so far provided a considerable increase in device performance and reduction in size. At the moment, new areas where this technology can be of use is under investigation. READ MORE

6. 4. Thin Film Electroacoustic Devices for Biosensor Applications

   Author : Gunilla Wingqvist; Ilia Katardjiev; Anita Lloyd Spetz; Kirsi Tappura; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronics; Elektronik; Elektronik; Electronics;

   Abstract : Biosensors are today important devices within various application areas. In this thesis a new type of label-free biosensor device is studied, which is fabricated using the same processes used for the fabrication of integrated circuits. This enables tighter integration and further sensors/biosensor miniaturization. READ MORE

7. 5. Synthesis of Thin Piezoelectric AlN Films in View of Sensors and Telecom Applications

   Author : Milena De Albuquerque Moreira; Ilia Dr.; Ioshiaki Dr.; Ricardo Cotrin; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Aluminum nitride; reactive sputtering; c-axis oriented films; tilted films; electroacoustic devices; piezoelectric materials; Aluminum Scandium Nitride; HiPIMS; high-k dielectric; Teknisk fysik med inriktning mot elektronik; Engineering Science with specialization in Electronics;

   Abstract : The requirements of the consumer market on high frequency devices have been more and more demanding over the last decades. Thus, a continuing enhancement of the devices’ performance is required in order to meet these demands. In a macro view, changing the design of the device can result in an improvement of its performance. READ MORE