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.
Higher-Vth devices in the cross-coupled latches and the write access transistors, and lower-Vth devices in the read ports are preferred for reducing leakage current without sacrificing performance. However, at ultra-low supply voltage levels, higher-Vth devices can retard or nullify energy efficiency due to substantially slower write speed than read. This paper presents energy efficiency maximization...
Ring oscillator based test structures that can separately measure the NBTI and PBTI degradation effects in digital circuits are presented for high-k metal-gate devices. The proposed test structures enable simultaneous stress of all devices under test in either NBTI or PBTI mode and measure frequency or threshold voltage shifts. The mathematical derivation also shows that the structure for frequency...
A programmable delay locked loop (DLL) based clock generator, providing a high multiplication factor, has been developed in a 0.18- μm CMOS technology. Utilizing the proposed pulse generator, purely consisting of D flip flops (DFFs) and inverters, the clock generator provides a high multiplication factor of up to 24. It consumes only 16.2 mW when generating 2.16 GHz output signals. In addition, the...
Human Body Communication (HBC) is an emerging communication technique for healthcare system in recent years. There were amount of researches about the human channel in literature in which the signal was generated, input into the human body through the transmit electrode, received in the receive one and evaluated in the network analyzer or oscilloscope. The frequency domain responses were obtained...
In this paper, we consider the important aspect of quality of service (QoS) in wireless mesh networks, focusing on packet delays and packet drops. We observe that the options of solely focusing on throughput, and of only depending on the QoS type characterization by the application level protocol is not sufficient. We propose the use of multiple queues to hold the packets based on their QoS requirement...
Negative Bias Temperature Instability (NBTI) is one of the most critical device reliability issues facing scaled CMOS technology. In order to better understand the characteristics of this mechanism, accurate and efficient means of measuring its effects must be explored. In this work, we describe an on-chip NBTI degradation sensor using two delay-locked loops (DLL). The increase in PMOS transistor...
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.