SIMS Imaging of Semiconductor Contact Pads

A white paper from Hiden Analytical
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Surface Effects and Contact Mechanics IX: Computational Methods and Experiments

Product Description
The importance of contact and surface effects in modern engineering and their combined effects led the organisers to reconvene this 9th International Conference, which covers two related topics: Computational Methods and Experiments in Contact Mechanics and Surface Effects. Nowadays the importance of contact and surface problems in many technological fields is well understood. They are complex and inherently non-linear due to the moving boundary and the different properties of materials, particularly along the contact surfaces. Structural components fail by wear, corrosion, high cycle fatigue etc, that is to say they are affected by surface conditions. The use of surface treatments can reduce the cost of components and extend the life of the elements for surfaces undergoing contact, a problem that is specifically addressed by the Conference. This book contains papers from the Ninth International Conference on Surface Effects and Contact Mechanics: Computational Methods and Experiments, and discusses the following topics: Surface treatments; Thick coatings; Thin coatings; Surface problems in contact mechanics; Indentation and hardness; Fatigue; Numerical analysis; Applications and case studies.

BUY FROM AMAZON–>> Surface Effects and Contact Mechanics IX: Computational Methods and Experiments

Computer Methods and Experimental Measurements for Surface Effects and Contact Mechanics

Product Description
Contains most of the papers presented at the Eighth International Conference on Computer Methods and Experimental Measurements for Surface and Contact Mechanics., held in The New Forest, UK, May 16-18, 2007. The use of surface treatments can reduce the cost of components and extend the life of the elements. Their effect is of particular importance in the case of surfaces undergoing contact, a problem which is addressed throughout the book. Topics covered include: Surface treatments; Thin coatings; Surface problems in contact mechanics; Contact mechanics; Material surfaces in contact; Fracture and fatigue; and New applications.

BUY FROM AMAZON–>> Computer Methods and Experimental Measurements for Surface Effects and Contact Mechanics

Contact detection between a CNT and an STM tip

Contact detection between tool and object is a major challenge on the nanoscale, where the scene is observed with scanning electron microscopes. This video demonstrates the capabilities of the new developped touchdown sensor. The carbon nanotube (CNT) shown, has a length of several µm and a thickness of about 300nm. Based on the touchdown sensor technology, the contact between the tool (STM-tip) and the CNT can be detected reliably. Furthermore, the sensor can be used as a force sensor with µn resolution.

Nanothermal trumpet: thermoacoustic sound source made with a suspended metal nanowire

From the paper “Suspended metal wire array as a thermoacoustic sound source,” Appl. Phys. Lett. 95, 163102 (2009); by AO Niskanen, J. Hassel, M. Tikander, P. Maijala, L. Grönberg, P. Helistö, from VTT Technical Research Centre of Finland, PO BOX 1000, 02044 VTT, Finland. dx.doi.org A suspended metal wire array is used to produce high-pressure sound waves over a wide spectrum using the thermoacoustic effect. It is fabricated with an air-bridge arrays containing up to 2×105 wires covering an area of a few square centimeters. The supporting silicon wafer was isotropically plasma etched to release the wires thereby avoiding heat contact with the substrate. Sound pressure levels reaching 110 db at a distance of 8 cm were demonstrated near 40 khz in free field. The devices are also able to reproduce music and speech. They have potential for applications especially in the ultrasound range.