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This paper describes a numerical method to compute van der Waals force between complex and freely oriented objects that have rough surfaces. The force calculation is implemented using the surface formulation of the force. First, the interacting surfaces are approximated with triangular meshes. Then, the surface roughness is taken into consideration by separately adding the asperity heights to each...
This paper reports an experimental study of environmental effects on a hybrid microhandling technique that combines robotic microhandling and droplet based self-alignment. The effects of relative humidity on reliability and on duration of the hybrid microassembly are studied in two cases. The first one is with 300 ??m ?? 300 ??m ?? 70 ??m SU-8 parts on the top of another part of the same material...
Hybrid microhandling is a new approach in microhandling that combines the benefits of two major branches of microhandling: robotic micromanipulation and self-assembly under a unified framework. This paper presents an in depth experimental study of a hybrid microhandling technique that combines robotic micromanipulator and droplet self-alignment. The experimental study is carried out on a home-made...
Automation is the key step for successful application of micromanipulation and microhandling technologies. Due to the challenging environment microhandling has to deal with, the success of automation in microhandling is rather limited today. This paper firstly discusses the important measures that are necessary to achieve automatic microhandling, and then reviews the challenges and status of microhandling...
This paper presents a hybrid microhandling strategy that combines robotic-based contact micromanipulation and capillary self-alignment. The novel approach combines the flexibility and dexterity of robotic microhandling technologies and the advantages of self-alignment where adhesion forces are utilized to help the placement of micro objects. Besides theoretical modelling, the paper presents experimental...
This paper presents a novel 6 DOF (degree-of-freedom) piezoelectric micro gripping/handling system for automatic dexterous manipulation and inspection of microoptoelectronic components. The purpose of the system is to pick-and-place and align microparts having size of 300 to 400 mum square. The alignment task includes both translational alignment for field-of-view and focusing, and rotational alignment...
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