Micro-material handling, employing e-beam coatings of copper and silver

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dc.contributor.authorMatope, S.en_ZA
dc.contributor.authorVan der Merwe, A. F.en_ZA
dc.contributor.authorRabinovich, Y. I.en_ZA
dc.date.accessioned2013-07-03T08:18:34Z
dc.date.available2013-07-03T08:18:34Z
dc.date.issued2012-05
dc.descriptionCITATION: Matope, S., Van der Merwe, A. F. & Rabinovich, Y. I. 2012. Micro-material handling, employing e-beam coatings of copper and silver. South African Journal of Industrial Engineering, 23(1):114-121, doi:10.7166/23-1-223.
dc.descriptionThe original publication is available at http://sajie.journals.ac.za
dc.description.abstractENGLISH ABSTRACT: Van der Waals forces and other adhesive forces impose great challenges on micro-material handling. Mechanical grippers fail to release micro-parts reliably because of them. This paper explores how the problematic Van der Waals forces may be used for micro-material handling purposes using surface roughnesses generated by e-beam coatings of copper and silver on silicon. An atomic force microscope, model Asylum MFP 3 D-Bio with version 6.22A software, was used to measure the forces exerted by the surfaces. A silver coating of 1.41 nm rms surface roughness value is found to exert the highest Van der Waals force, followed by a copper coating of 2.72 nm rms; a copper coating of 217 nm rms exerts the least force. This implies that, in a reliable micro-material handling system, these coatings are suitable for the interactive surfaces of the placement position, micro-gripper, and the pick-up position respectively.en_ZA
dc.description.abstractAFRIKAANSE OPSOMMING: Van der Waalskragte en ander bindingskragte hou steeds groot uitdagings in vir mikromateriaalhantering. As gevolg van hierdie bindingskragte stel meganiese gryptoerusting nie die mikro-partikels vry nie. Hierdie artikel ondersoek hoe die Van der Waalskragte gebruik kan word vir die mikro-materiaalhanteringsproses deur die gebruik van oppervlakgrofheid gegenereer deur n e-straal-laagbedekking van koper en silwer op silikon. n Atoomkrag mikroskoop, model Asylum MFP 3 D-Bio met weergawe 6.22A programmatuur, is gebruik om die kragte deur die oppervlakke uitgeoefen te meet. Daar is gevind dat n silwer laagbedekking met n oppervlakgrofheid van 1.41nm wortel-gemiddelde-kwadraat (wgk) die hoogste Van der Waalskrag uitoefen, gevolg deur n koper laagbedekking met n oppervlakgrofheid van 2.72nm wgk; n koper laagbedekking met n grofheid van 217nm wgk het die kleinste krag uitgeoefen. Dit impliseer dat, vir n betroubare mikro-materiaalhanteringsisteem, hierdie laagbedekkings geskik is vir die interaktiewe oppervlakke van die plasingsposisie, die mikro-gryper en die optelposisie.af_ZA
dc.description.urihttp://sajie.journals.ac.za/pub/article/view/223
dc.description.versionPublisher's version
dc.format.extent8 pagesen_ZA
dc.identifier.citationMatope, S., Van der Merwe, A. F. & Rabinovich, Y. I. 2012. Micro-material handling, employing e-beam coatings of copper and silver. South African Journal of Industrial Engineering, 23(1):114-121, doi:10.7166/23-1-223.
dc.identifier.issn2224-7890 (online)
dc.identifier.issn1012-277X (print)
dc.identifier.otherdoi:10.7166/23-1-223
dc.identifier.urihttp://hdl.handle.net/10019.1/81081
dc.language.isoen_ZAen_ZA
dc.publisherSouthern African Institute for Industrial Engineeringen_ZA
dc.rights.holderAuthors retain copyrighten_ZA
dc.subjectVan der Waals forcesen_ZA
dc.subjectPolarization (Electricity)en_ZA
dc.subjectElectron beams -- Coatingsen_ZA
dc.subjectCopperen_ZA
dc.subjectSilveren_ZA
dc.titleMicro-material handling, employing e-beam coatings of copper and silveren_ZA
dc.typeArticleen_ZA
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