Searched for: department%3A%22Precision%255C%252Band%255C%252BMicrosystems%255C%252BEngineering%22
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Ranjan, R. (author)
With the advent of Additive Manufacturing (AM) techniques, the design principle of `form follows function' no longer remains a utopian proposition. The unprecedented design freedom offered by AM is making it possible to conceptualize highly performant designs by efficiently leveraging geometrical complexity. The increase in design freedom...
doctoral thesis 2023
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Aghajani, S. (author)
Microprocessors, long-lasting batteries, and sensors are a number of examples of nanotechnology revolutionising our daily lives. Nanotechnology is the study, development, and manufacturing of structures and devices which derive unique and novel properties from nanoscale phenomena. To realise such structures and devices, a set of processes...
doctoral thesis 2023
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Broeren, F.G.J. (author)
Most materials around us have properties that are determined at extremely small scales. Often the atoms and molecules that make up these materials determine how they behave under load. While this already leads to a great variety of material properties, a lot more is possible. <br/>Mechanical metamaterials use structure to extend the available...
doctoral thesis 2022
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Rezaie Adli, A.R. (author)
This thesis comprises a thorough study of the microelectronics packaging process by means of various experimental and numerical methods to estimate the process induced residual stresses. The main objective of the packaging is to encapsulate the die, interconnections and the other exposed internal components by providing mechanical protection,...
doctoral thesis 2017
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Peters, H.J. (author)
This thesis studies a controllability approach for general resonant compliant systems. These systems exploit resonance to obtain a specific dynamic response at relatively low actuation power. This type of systems is often lightweight, is scalable and minimizes frictional losses through the use of compliant hinges. Some insect-inspired Flapping...
doctoral thesis 2016
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Verbart, A. (author)
This thesis contains contributions to the development of topology optimization techniques capable of handling stress constraints. The research that led to these contributions was motivated by the need for topology optimization techniques more suitable for industrial applications. Currently, topology optimization is mainly used in the initial...
doctoral thesis 2015
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Öztürk, B. (author)
Adhesives based on thermoset polymers are used as thermal and electrical interfaces. These adhesives are filled with different particles in order to meet the requirements of heat transfer and electrical properties. Due to the reliability requirements of automotive applications, they are required to have excellent bulk and interface properties....
doctoral thesis 2015
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Kuran, E.E. (author)
The majority of flexible electronics applications require integration of thin chips on low-cost polymer substrates, with a high volume manufacturing fashion. However, handling thin parts (below< 100?m) with contact-based micro-assembly techniques is challenging due to the strong adhesion forces at micro-scale. This situation slows down the...
doctoral thesis 2015
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Zhu, S. (author)
In this thesis, I have shown that the quality of synthetic graphene can be as high as mechanically exfoliated graphene if we can get rid of the wrinkles. Any defects, impurities and grain boundaries will induce scattering, preventing ballistic transport. The experiment described in chapter 4 was the first to demonstrate ballistic transport in...
doctoral thesis 2015
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Akram, M. (author)
Major industrial sectors like automotive, aerospace and others are increasingly using polymer composites in their structural parts. Polyimide sheet and adhesives, are high performance polymers. They are widely used in various engineering applications due to their excellent thermal, mechanical and chemical properties and their resistance to...
doctoral thesis 2015
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Kotnur, V.G. (author)
NiTi (Nickel Titanium) is a shape memory alloy (SMA) known for shape memory effect and superelasticity. The shape memory effect and superelasticity allows NiTi to be strained reversibly unto 6-8%. NiTi thin films are of technological interest as actuator materials in microelectromechanical systems (MEMS) because they possess a large deformation...
doctoral thesis 2015
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Perez Garza, H.H. (author)
Properties of matter at the nano-scale may be very different from the ones observed at the macro-scale. The continuous variation of characteristics with diminishing size results in relevant changes in behavior. Similarly, these changes are caused by the rise of completely new phenomena (i.e. quantum confinement). Nanoscience can offer an...
doctoral thesis 2015
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Meskers, A.J.H. (author)
Lithographic exposure equipment for integrated circuit manufacturing requires ever more accurate position measurement systems, which is currently led by the advent of Extreme UltraViolet (EUV)-lithography machines. This PhD-research describes an interferometric displacement measurement system that possess the potential to foresee in the need for...
doctoral thesis 2014
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Van der Valk, P.L.C. (author)
Large scale offshore wind power has been recognized as a key technology to increase the share of renewable energy. However, as this energy source is currently still relatively expensive, efforts are made to significantly reduce its costs. Cost reductions are to be achieved, for instance, by installing larger turbines in larger offshore wind...
doctoral thesis 2014
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Saathof, R. (author)
In highly precise systems the thermal expansion of system-parts is of increasing concern, since it can severely compromise its performance at sub-nanometre level. An example of such a system is an Extreme UltraViolet (EUV)-lithography machine that is used in the semi-conductor industry to project the pattern of the chip onto a silicon wafer. In...
doctoral thesis 2013
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Özbek, M. (author)
Identification of the dynamic properties and the corresponding structural response of wind turbines is essential for optimizing the energy produced, ensuring safe and reliable operation and increasing the life-time of the system. As the sizes of modern wind turbines increase, their dynamic behaviors get more complicated and it becomes more...
doctoral thesis 2013
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Valentin, C.L. (author)
This thesis investigates the feasibility of a photomask curvature manipulator in immersion lithography systems.
doctoral thesis 2013
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Lambert, P. (author)
This thesis explores the fundamentals of a new class of parallel mechanisms called parallel mechanisms with configurable platforms as well as the design and analysis of parallel robots that are based on those mechanisms. Pure parallel robots are formed by two rigid links, the base and the end-effector, connected in parallel by independent serial...
doctoral thesis 2013
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Van Gurp, J.F.C. (author)
doctoral thesis 2013
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Chen, X.P. (author)
Conducting polymers are attractive chemical sensing materials due to their outstanding characteristics including low cost, room-temperature operations, easy device fabrication, high sensitivity and short response time. The new nanowires architecture, with high surface-to-volume ratio, makes possible the conducting polymers an ultra fast...
doctoral thesis 2013
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