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.
Gold is commonly used for electrical contacts due to its many desirable electrical and mechanical properties. Throughout the switch lifetime, the contacts are required to survive a large number of opening and closing cycles and therefore it is important to understand the failure mechanisms. Adhesion layers (e.g. chromium or titanium) can be deposited to increase the adhesion of the gold layer to the...
Wear processes of the switching contact pair consisting of a gold layer on multiwall carbon nanotubes (Au/MWCNT) and a chromium and gold coated hemispherical ball (Au/Cr) are evaluated over a range of current conditions. The switching experiments were conducted using typical conditions for a MEMS relay application, i.e. 4 V, with static contact force 1 mN with currents level of 20 - 200mA. The Au...
We review our recent results in the development of nanostructured photonic metamaterials which provide unprecedented levels of active (nonlinear, switchable, tunable) control over light on the sub-wavelength scale.
Material transfer in switching contacts is considered at very low currents, (below 20mA). The transfer process is critical to a wide range of electronic switching technologies and is a limiting factor for MEMs relays. A test system is described and characterized for bench-marking surfaces. This is followed by a study of Multi-walled CNT's (MWCNT's), synthesized on a silicon planar and sputter coated...
This paper demonstrates the integration of Au nanocrystals (NCs) into nonvolatile metal-oxide-semiconductor (MOS) with a hybrid method operated at room temperature. The comparison of structural and electrical characteristics between the hybrid Au NCs fabricated by chemical syntheses and film deposition Au NCs fabricated by rapid thermal annealing (RTA) was carried out. The size of the Au NCs formed...
Two-dimensional ordered domains of gold were obtained on the hydrophilic surface of polymerized 10,12-pentacosadiynoic acid (poly-PCDA) monolayer. Instead of the classical physical methods, such as scanning tunneling microscopy (STM) and low pressure evaporation, a 'wet' chemical method based on the Langmuir-Blodgett technique was employed. The structure was probed by STM and found to have a quasi-rectangular...
Different sized nanometer particles Au and AgI, from 1-10 nm, were prepared on LB films by depositing coherent arachidic acid LB films onto solid substrates from solution at a controlled pH. This method is convenient and can control the particle size.
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.