Low voltage TEM for semiconductor analysis

Imaging electron detectors for low-voltage TEM

Automated Image Analysis Using a Tabletop Low Voltage TEM

The development of technologies using nanoparticles has been significantly increasing over the past decade, with applications in a broad scope of fields, as well in material sciences as in life sciences, and the demand on particle characterization has been growing accordingly. Amongst the methods available for particle characterization, Electron Microscopic technologies in contrast to indirect ...

Morphology and Structure Anlysis of Graphene by Low Voltage TEM

Graphene, a single atomic monolayer of sp 2 -bonded hexagonal carbon with extraordinary mechanical, electronic, and optical properties, has become a subject of great interest in materials science. Since its first isolation in 2004, graphene has been researched by many research groups in the fields of physics, chemistry and material. And it is expected that graphene will be applied in various in...

A Low Cost Sensorless Control Drive Circuit for of Low Voltage Switched Reluctance Motor

Shaft position sensing is an essential part of switched reluctance (SR) motor drive In order to synchronize the pulses of phase current with the period of rising inductance of the proper motor phase. Direct sensors such as, Hall effect and optical encoder are commonly used in SR motors. The purpose of this paper is to present an indirect shaft positioning sensing known as "sensorless " control ...

Recent Achievements and Approaches for Further Opimization of High Current Low Voltage Power Semiconductor Components

Achievable current density of low voltage power MOSFET components has increased signi cantly over the past years Those devices are mainly used in converters for automotive auxiliary drives or renewable energy The paper outlines state of the art technology and gives an outlook on further development taking into account the particular requirements of the aforementioned demanding applications Intr...