• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2009.11a
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• pp.242-242
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• 2009

Fabrication of Anodic aluminum oxide under DC vias condition has been studied. When bias and time of anodic aluminum oxide process change, the hole distance and diameter size change. Comparison of fabricated AAO between AC vias and DC vias condition has been studied in this experiment. The first and second anodization of one aluminum is done by using DC and AC power supplier. And first and second anodization of another aluminum is done by DC power supplier. The size of the aluminum is $1cm{\times}3cm$, and second anodic aluminum oxide process takes about 45min. It is found that the hexagonal shape appears on the surface of the AAO. AC power source can fabricate aao which have a nano hole array. We can see that the hole on the surface of the AC vias has a better rounded hole than DC vias AAO. we need more data so we can get characteristic about AC power generated AAO.

• Bulletin of the Korean Chemical Society
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• v.16 no.9
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• pp.808-810
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• 1995

A strong SERS effect has been observed on silver surfaces which were prepared by Ag deposition in anodic aluminum oxide nanotemplates and subsequent partial removal of the oxide layers. The advantage of these surfaces for SERS studies is that the controlled size and dispersion of Ag particles can be achieved.

• Journal of the Korean Society for Precision Engineering
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• v.21 no.4
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• pp.186-193
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• 2004

Porous anodic alumina has been used widely for corrosion protection of aluminum surfaces or as dielectric material in micro-electronics applications. It exhibits a homogeneous morphology of parallel pores which can easily be controlled between 10 and 400nm. It has been applied as a template for fabrication of the nanometer-scale composite. In this study, mechanical properties of the AAO structures are measured by the nano indentation method. Nano indentation technique is one of the most effective methods to measure the mechanical properties of nano-structures. Basically, hardness and elastic modulus can be obtained by the nano-indentation. Using the nano-indentation method, we investigated the mechanical properties of the AAO structure with different size of nano-holes. In results, we find the hole effect that changes the mechanical properties as size of nano hole.

• Proceedings of the KSME Conference
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• 2004.04a
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• pp.144-149
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• 2004

Porous anodic alumina has been used widely for corrosion protection of aluminum surfaces or as dielectric material in micro-electronics applications. It exhibits a homogeneous morphology of parallel pores which can easily be controlled between 10 and 400nm. It has been applied as a template for fabrication of the nanometerscale composite. In this study, mechanical properties of the AAO structures are measured by the nano indentation method. Nano indentation technique is one of the most effective method to measure the mechanical properties of nano-structures. Basically, hardness and elastic modulus can be obtained by the nano-indentation. Using the nano-indentation method, we investigated the mechanical properties of the AAO structure with different size of nano-holes. In results, we find the hole effect that changes the mechanical properties as size of nano hole.

• Journal of Information Display
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• v.8 no.4
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• pp.19-22
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• 2007

A new front plate structure of ac-PDP using fence-type aluminum electrode coated with anodic aluminum oxide was investigated. In this structure, ITO and glass dielectric layer were eliminated and expensive Ag BUS electrode was replaced with aluminum. Test panels were prepared using the new structure and their luminance and discharge characteristics were examined. These results indicate that the new structure provide a new way of cost reduction and enhancement of performance of ac-PDPs

• 한국정보디스플레이학회:학술대회논문집
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• 2007.08a
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• pp.127-130
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• 2007

A new front plate structure of ac-PDP was explored using fence-type aluminum electrode coated with anodic aluminum oxide.[1] In this structure, ITO and glass dielectric layer were eliminated and expensive Ag BUS electrode was replaced with aluminum. Test panels were prepared using the new structure and their luminance and discharge characteristics were examined. These results indicate that the new structure provide a new way of cost reduction and enhancement of performance of ac-PDPs

• Journal of the Korean Professional Engineers Association
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• v.33 no.6
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• pp.16-23
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• 2000

Anodizing processes is the conversion of the aluminum surface to aluminum oxide while the part is the anode in an electrolytic cell. The object of the anodizing was increased corrosion resistant, paint adhesion and was provided unique, decorative colors. Many electrolytes, under different conditions, have been used for the anodic oxidation of alumminum and its alloys. This paper deals with the procedures used in the anodic oxidation of aluminum and its alloys, the nature and properties of the oxide films, their uses and anodizing equipment and process control.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2003.07b
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• pp.922-925
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• 2003

The interest of self-organization materials that have uniform and regular structure in nano scale has been grown due to their utilization in various fields of nanotechnology. An attractive candidate among these materials is anodic aluminum oxide film, which are formed by anodization of aluminum in an appropriate acid solution. The anodic aluminum oxide film has a highly ordered porous structure with very uniform and nearly parallel pores that can be organized in an almost precise close-packed hexagonal structure. In this study, we attempt to make Au dot arrays, which were fabricated using anodic aluminum oxide film as an evaporation mask. The Au dot arrays have a uniform sized dots and spacing to its neighbors and the average diameter of Au dots is about 60 nm corresponding to them of the mask.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2010.05a
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• pp.31-32
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• 2010

• Bulletin of the Korean Chemical Society
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• v.35 no.2
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• pp.349-352
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• 2014

Anodic alumina oxide (AAO), a self-ordered hexagonal array, has various applications in nanofabrication such as the fabrication of nanotemplates and other nanostructures. In order to obtain highly ordered porous alumina membranes, a two-step anodization or prepatterning of aluminum are mainly conducted with straight electric field. Electric field is the main driving force for pore growth during anodization. However, impurities in aluminum can disturb the direction of the electric field. To confirm this, we anodized two different aluminum foil samples with high purity (99.999%) and relatively low purity (99.8%), and compared the differences in the surface morphologies of the respective aluminum oxide membranes produced in different electric fields. Branched pores observed in porous alumina surface which was anodized in low-purity aluminum and the size; dimensions of the pores were found to be usually smaller than those obtained from high-purity aluminum. Moreover, anodization at high voltage proceeds to a significant level of conversion because of the high speed of the directional electric field. Consequently, anodic alumina membrane of a specific morphology, i.e., meshed pore, was produced.