Materials Science

User Stories

	Temperature Dependent Material Properties Jahm Software Inc., MA, USA It is common to use data at room temperature in a simulation because elevated temperature data could not be found. However, the effects of temperature on a...
	Modeling Improves Prediction of Semiconductor Lifetimes STMicroelectronics With the scaling down of semiconductor devices, current density in the metal interconnects joining individual transistors increases. Up to now, lifetime...
	Spinning Threads of the Tiniest Size Imaginable Chemical Engineering Department, The Lund Institute of Technology, Lund, Sweden The process of manufacturing nanowires-the smallest possible threads-is not wholly understood. Prof. Stig Stenström of Lund University in Sweden created a...
	ArcelorMittal Breaks Down the Physics of Corrosion Arcelormittal, France Researchers at Arcelormittal, France use modeling with COMSOL to better understand the mechanism behind delamination and underpaint corrosion and determine...
	Reduced Stresses Inside Semiconductor Chips Lead to Higher Reliability STMicroelectronics, Milan, Italy A team from STMicroelectronics and Technoprobe, Italy joined together to investigate what happens when a probe tip hits a conductive pad surface. Limiting...

	Semiconductor Diode A semiconductor diode consists of two regions with different doping: a p-type region with a dominant concentration of holes, and an n-type region with a dominant concentration of electrons. The model presented here formulates the...
	Distributed SPICE Model of Bipolar Transistor Integrated semiconductor devices are used in almost all electrical equipment, and the bipolar junction transistor (BJT) is still a very important device although the MOS technology has taken over a large part of the market. Especially in...
	MOS Transistor Model The MOSFET (Metal Oxide Semiconductor Field-Effect Transistor) is by far the most common semiconductor device, and the primary building block in all commercial processors, memories, and digital integrated circuits. During the past decades...
	Nonlinear Magnetostrictive Transducer Magnetostrictive transduction is used in sonars, acoustic devices, active vibration and position control and fuel injection systems. The transducer has a steel housing enclosing a drive coil. A magnetostrictive material is placed in the...