Graphene’s unique symmetry between pand n-branches has enabled several interesting device applications; however, short-channel devices often exhibit degraded symmetry. We examine how graphene nanoribbon geometries can improve transfer characteristics and p–n symmetry, as well as reduce Dirac point shift for highly scaled graphene devices. RF graphene transistors utilizing a multiribbon channel ...

In CMOS multistage clock buffer design, the duty-cycle of clock is liable to be changed when the clock passes through several buffer stages. The pulse-width may be changed due to unbalance of the pand n-OS transistors in the long buffer. This paper describes a delay locked loop with double edge synchronization for use in a clock alignment process. Results of its SPICE simulation, that relate to...

On the way to an efficient implementation of finite element algorithms related to the pand h-p-versions on sparse grids, we present a general concept for the construction of hierarchical bases of higher order suitable for sparse grid methods. For the solution of partial differential equations, this approach allows us to profit both from the efficiency of sparse grid discretizations and from the...

An analysis of the channel thermal noise in MOSFET's, based on the one-dimensional charge sheet model, is presented. The analytical expression is valid in the strong, moderate, and weak inversion regions. The body effect on the device parameters relevant to the thermal noise is discussed. A measurement technique as well as experimental results of Pand N-MOSFET's of a 1.2 μm radiation hard CMOS ...

Remotely sensing the properties of fractures has applications ranging from exploration geophysics to hazard monitoring. Newly-developed capabilities to measure the in-plane component of dense laser-based ultrasound wave fields allow us to test the applicability of a linear slip model to describe fracture properties. In particular, we estimate the size, and the normal and tangential compliance o...

We measured the polarized and azimuthal dependencies of optical second harmonics generation (SHG) on polished surfaces of ZnSe(100) single crystal surface in air, using a fundamental wavelength of 1.06μm. By considering both, the bulkand surfaceoptical nonlinearities within the electric dipole approximation, we analysed the data for all four combination of pand s-polarized incidence and output....

Dès la mise en place du confinement, le gouvernement danois de centre-gauche a mis différentes mesures d’aides et subventions direction des entreprises, administrations secteur financier. Le 14 mars 2020, un accord tripartite est signé afin permettre aux salariés d’entreprises difficulté conserver leur salaire pendant confinement. Par ces mesures, volet...