Simulation of boron diffusion during low-temperature annealing of implanted silicon

Modeling of ion-implanted boron redistribution in silicon crystals during low-temperature annealing with a small thermal budget has been carried out. It was shown that formation of "tails"' in the low-concentration region of impurity profiles occurs due to the long-range migration of boron interstitialsComment: 16 pages, 3 figure

On the Existence of Real Entire Functions with a Prescribed Ordered Set of Stationary Values

AbstractTo each ordered set of real stationary values (with multiplicities) is shown to correspond a real entire function ƒ taking on the stationary values in the given order and with the given multiplicities along the real axis. This function has a derivative ƒ′, whose roots are all real, and which is of the Pólya-Laguerre class; the function ƒ is, apart from an arbitrary real affine transformation (conserving order) of the independent variable, the only function satisfying all of the conditions above

Infinite divisibility of random variables and their integer parts

It is examined to what extent the infinite divisibility of a random variable X entails the infinite divisibility of its integer part [X] or vice versa. As a special case passage times are considered in processes with independent increments such as the positive stable processes and the Gamma process. In spite of some interesting relationships, the results tend to be rather negative