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Chin. Phys. B, 2010, Vol. 19(5): 057204    DOI: 10.1088/1674-1056/19/5/057204
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

Fabrication of a 256-bits organic memory by soft x-ray lithography

Liu Xing-Hua(刘兴华)a), Lu Wen-Sheng(鲁闻生)b), Ji Zhuo-Yu(姬濯宇)a), Tu De-Yu(涂德钰)a),Zhu Xiao-Li(朱效立)a), Xie Chang-Qing(谢常青) a), and Liu Ming(刘明)a)
a Microfabrication and Nanotechnology Lab, Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China; b Key Laboratory of Colloid and Interface Science, Center of Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
Abstract  This paper reports a procedure of soft x-ray lithography for the fabrication of organic crossbar structure. Electron beam lithography is employed to fabricate the mask for soft x-ray lithography, with direct writing technology to lithograph positive resist, polymethyl methacrylate on the polyimide film. Then Au is electroplated on the polyimide film. Hard contact mode exposure is used in x-ray lithography to transfer the graph from the mask to the wafer. The 256-bits organic memory is achieved with the critical dimension of 250 nm.
Keywords:  molecular memory      crossbar array      soft x-ray lithography      electron beam lithography  
Received:  13 May 2009      Revised:  13 November 2009      Accepted manuscript online: 
PACS:  85.40.Hp (Lithography, masks and pattern transfer)  
  82.45.Qr (Electrodeposition and electrodissolution)  
  82.45.Fk (Electrodes)  
  79.60.Dp (Adsorbed layers and thin films)  
Fund: Project supported by the State Key Development Program for Basic Research of China (Grant No.~2006CB806204), National Natural Science Foundation of China (Grant Nos.~60825403, 90607022, 60676001 and 60676008) and Synchrotron Radiation Fund of Innovation Project of Ministry of Education of China (Grant No.~20070156S).

Cite this article: 

Liu Xing-Hua(刘兴华), Lu Wen-Sheng(鲁闻生), Ji Zhuo-Yu(姬濯宇), Tu De-Yu(涂德钰),Zhu Xiao-Li(朱效立), Xie Chang-Qing(谢常青), and Liu Ming(刘明) Fabrication of a 256-bits organic memory by soft x-ray lithography 2010 Chin. Phys. B 19 057204

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