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Developments in Ceramic Materials Research

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In: <strong>Developments</strong> <strong>in</strong> <strong>Ceramic</strong> <strong>Materials</strong> <strong>Research</strong> ISBN 978-1-60021-770-8<br />

Editor: Dena Rosslere, pp. 241-260 © 2007 Nova Science Publishers, Inc.<br />

Chapter 8<br />

FIELD EMISSION DISPLAY ON CERAMIC<br />

Li Chen<br />

The University of York, Hesl<strong>in</strong>gton, York, YO10 5DD, UK<br />

ABSTRACT<br />

Scientific advances concern<strong>in</strong>g many ceramic materials have enabled technological<br />

breakthroughs globally. The superior comb<strong>in</strong>ations of thermal, <strong>in</strong>sulat<strong>in</strong>g, electrical and<br />

mechanical properties have become the basis of huge applications <strong>in</strong> the packag<strong>in</strong>g of<br />

microelectronics and power semiconductors. M<strong>in</strong>iaturization and <strong>in</strong>tegration of metal via<br />

<strong>in</strong>to ceramic substrate make it feasible to construct multilayer circuit <strong>in</strong>ter connections.<br />

This advantage provides the possibility to mount electronics component and circuitry<br />

directly onto both side of ceramic substrate. This packag<strong>in</strong>g advance makes ceramic very<br />

attractive to field emission display application. Field emission display is able to comb<strong>in</strong>e<br />

the high quality images and large view<strong>in</strong>g angles of cathode ray tube, while deliver<strong>in</strong>g it<br />

<strong>in</strong> the flatness attributed to liquid crystal display, and utiliz<strong>in</strong>g just a fraction of the<br />

electrical power required by plasma display panel. Field emission display is predicted to<br />

be one of the most promis<strong>in</strong>g flat panel displays that will take off <strong>in</strong> the future. Currently<br />

rely<strong>in</strong>g on the semiconductor th<strong>in</strong> film micro-fabrication technology, field emission<br />

displays are fabricated mostly on soda-lime glass substrate. Although this is compatible<br />

to the liquid crystal display technology, the row and column electrodes of a field<br />

emission display have to be allocated to the sides of glass substrate. Furthermore, the<br />

exist<strong>in</strong>g technology still has difficulties to deliver large area micro field emitters with<br />

acceptable uniformity. If the key components of micro field emitter matrix pixels can be<br />

produced entirely on the front side of ceramic substrate, and are electrically connected to<br />

the backside drive and control circuit through the micro via, this allows construction of<br />

micro field emitters right up to the edge of ceramic substrate. In addition, a large size<br />

display can be constructed by til<strong>in</strong>g ceramic substrates precisely. In this chapter, the<br />

micro-fabrication of field emitters on ceramic substrate is presented. Electron emission<br />

characteristics of these micro field emitters were studied, and results from the<br />

microstructures are analysed.

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