The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The UMTS Band I and Band IV systems have a wide frequency interval between transmitting (Tx) and receiving (Rx) bands. When developing a small-sized SAW duplexer for this application, one needs a substrate with a large electromechanical coupling factor (K2) and a good temperature coefficient of frequency (TCF). Although a SiO2/Al/LiNbO3 structure meets these two requirements, it also supports a certain...
In order to control the characteristics of porogen-based porous SiOC film (k < 2.5), we investigated its dependence on the wavelengths of ultraviolet (UV) light by using methods of FT-IR, TDS and nano-indentation. As a result, it was found that specific wavelengths of UV light strongly was effective to porous SiOC film production : porogen desorption, mechanical strength improvement, and reduction...
We demonstrate that negative bias temperature instability (NBTI) of high-k (HfO2/SiO2) gate stacks are significantly improved by incorporating fluorine and engineering its concentration profile. We find that F piles up at HfO2/SiO 2 interface and diffuses into the underlying SiO2/Si interface. The HfO2/SiO2 stack with F shows significantly less CV hysteresis, positive charge trapping and interface...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.