The effect which nitrogen has upon boron diffusion through oxynitride gate dielectrics has been studied with secondary ion mass spectroscopy of polycrystalline silicon–oxynitride–silicon structures, and with x-ray photoelectron spectroscopy of silicon–boron–oxynitride–silicon structures. These studies show that the indiffusion of boron results in removal of nitrogen from the oxynitride. This in...

The elements carbon and boron uniquely form extensive series of compounds with hydrogen; hydrocarbons and boron hydrides. In comparison to carbon, which forms various chainor ring-like structures, boron, an electron deficient element, forms quasi-aromatic clusters architecturally derivable from a twelve-vertex icosahedral unit. Herein, we focus on a comparison of hydrocarbon and boron hydride b...

INTRODUCTION Complexes containing metal-boron bonds are relatively new to organometallic chemistry. Just over 20 years ago, the first crystallographically characterized complexes containing a transition metal-boron bond were reported. Boron is typically encountered in the +3 oxidation state, and boron species commonly serve as Lewis acids via their vacant p-orbital. Indeed, metal borane complex...

This work establishes that cessation of root elongation of intact squash (Cucurbita pepo L.) plants is an early result of boron deficiency. Root elongation is slowed by 6 hours and is virtually stopped as early as 24 hours after boron is first withheld from the nutrient solution. As root elongation ceased, cell elongation progressed distally into the region normally occupied by the apical meris...

OBJECTIVE To determine the role of serum and urine selenium, and boron levels in children with resistant epilepsy. METHODS Serum and urine boron and selenium levels were studied in 53 cases (32 boys and 21 girls) diagnosed with resistant epilepsy between April 2006 and February 2007 at the Department of Pediatric Neurology, Erciyes University, Kayseri, Turkey. Differences between groups were...

The beneficial effect of boron on the mechanical properties of austenitic stainless steels is well documented [1, 2]. A number of studies have confirmed that boron segregates to grain boundaries, in a variety of steels and nickel-base alloys (for example, [3, 4, 5]). Segregation of boron is known to occur via two mechanisms (for example, [1]): Equilibrium segregation is caused by the high bindi...