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.
We demonstrate a low-power multi-pixel volatile compounds sensing platform dedicated to Internet of Things (IoT) applications, especially for environmental monitoring and industrial control. The transducers are made of interdigitated microelectrodes within a sensor array. Each pixel is independently functionalized by polypyrrole (PPy) electropolymerization performed in a back-end process in order...
We describe an ultra-low-power volatile compounds microsensor array towards increased selectivity and sensitivity. The chemiresistive transducers are 100 nm-thick interdigitated gold microelectrodes coated with polypyrrole-based polymer. Two sensors arrays were implemented with respectively 3 × 3 and 2 × 2 pixels2, showing a surface per pixel down to 400 × 200 μm2. The fabrication is fully CMOS-compatible...
The paper describes the key challenges of CMOS integrated monolithic MEMS Accelerometer with SiGe MEMS technology combined with TSMC 0.18 μm CMOS technology. The developed SiGe MEMS technology shows ability to integrate above any standard foundry process. This allows us to build the smallest form-factor surface micromachined accelerometer for the consumer application in the range of ±2G. The total...
In this paper, the performances of a lateral thin-film PIN photodiode based on silicon-on-insulator technology are reported for applications from blue to red wavelengths. The platform consists of a micro-hotplate with a suspended heater and a photodiode. Responsivities of 0.01 to 0.05 A/W were obtained for 450–900 nm light range in reverse bias operation. Suspended photodiodes give up to 5x responsivity...
A CMOS voltage reference circuit robust under harsh environments such as high temperature and high radiation total dose is presented. To achieve ultra-low-power and harsh environment operation, the voltage reference circuit is designed in a suitable 130 nm Silicon-on-Insulator technology and is optimized to work in sub-threshold regime of the transistors. The design simulations have been performed...
The patient-centered medical home model has the potential to reduce healthcare disparities among immigrant children. The purpose of this study is to examine the relationship between medical home (MH) participation and receipt of preventive services among immigrant children age 0–17. The study employed extant data from the National Survey of Children’s Health, 2007 (NSCH). Logistic regression analyses...
The ionization of gases results in a unique fingerprint depending on their nature and concentration. Moreover, according to Paschen's law, the measurement of distinct species is possible by modifying the distance between the electrodes. In order to analyze gaseous compounds within a mixture, a novel MEMS tunable sensor incorporating freestanding nanowires is proposed. This device allows controlling...
In this paper, several physical phenomena that are usually not taken into account in MEMS simulations are considered for the simulation of a MEMS xylophone bar magnetometer. These phenomena are the temperature dependency of the material properties, the strong coupling between various fields of physics (thermal, electric and mechanical) and the stress produced by the change of temperature inside the...
An ultra-low-power temperature-sensor-based silicon-on-insulator (SOI) CMOS Integrated Circuit (IC) for harsh environment application is presented. It first detects a temperature threshold, secondly generates a wake-up signal that turns on a data-acquisition microprocessor once the threshold has been detected and thirdly operates as a temperature sensor in a harsh environment while being wired to...
This paper introduces MEMS filters based on the use of traveling flexural waves. The underlying concept of these devices draws on an analogy with SAW devices, while replacing the surface elastic wave with a flexural wave on a suspended beam. This is in contrast with traditional flexural MEMS devices whereby all signal processing is done via a resonating element corresponding to a standing flexural...
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.