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.
This paper presents a 4times4 tin oxide gas sensor array based on spike sequence matching. This integrated CMOS compatible gas identification system generates a unique spike sequence, which is only function of the sensed gas. In contrast to previously reported gas classification schemes, the proposed signature is independent of gas concentration. Reported experimental results validate the functionality...
We propose a bio-inspired signal processing method for odor discrimination. A spiking neural network is trained with a supervised learning rule so as to classify the analog outputs from a monolithic 4times4 tin oxide gas sensor array implemented in our in-house 5 mum process. This scheme has been successfully tested on a discrimination task between 4 gases (hydrogen, ethanol, carbon monoxide, methane)...
This paper describes the fabrication process for a novel convex microhotplate (MHP) structure using surface micromachining technology. The process is used to fabricate an integrated 4times4 tin oxide gas sensor array. Surface micro-machining is selected for its simplified process and CMOS compatibility. However, limited sacrificial layer thickness usually leads to higher power consumption. In this...
This paper presents a monolithic 4×4 tin oxide gas sensor array together with on-chip multiplexing and differential read-out circuitry. A robust fabrication process focusing on the integration of the CMOS circuitry and the microelectromechanical systems (MEMS) structure is first described. The gas sensor uses a surface micro-machined micro-hotplate based structure. Platinum is selected as the material...
This paper presents a monolithic 4times4 tin oxide gas sensor array together with on-chip multiplexing and differential read-out circuitry. In contrast to the conventional voltage divider read-out technique, a novel differential read-out circuit (DRC) for tin oxide gas sensors is proposed. The output of the DRC is simply proportional to the difference between the voltage on the two electrodes of the...
The paper describes a fabrication process for convex micro-hotplates (MHPs) using surface micro-machining technology. Surface micro-machining provides simplified process and CMOS compatibility over buck microelectromechanical systems (MEMS). The low yield of the latter limits the dimension of the fabricated array while limited sacrificial layer thickness in the former leads to higher power consumption...
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.