Active solid-state devices (e.g. – transistors – solid-state diode – Thin active physical layer which is
Reexamination Certificate
2011-08-16
2011-08-16
Dickey, Thomas L (Department: 2826)
Active solid-state devices (e.g., transistors, solid-state diode
Thin active physical layer which is
C257S024000, C257SE27071, C257SE51023
Reexamination Certificate
active
07999248
ABSTRACT:
A nanoscale device and a method for creating and erasing of nanoscale conducting regions at the interface between two insulating oxides SrTiO3and LaAlO3is provided. The method uses the tip of a conducting atomic force microscope to locally and reversibly switch between conducting and insulating states. This allows ultra-high density patterning of quasi zero or one dimensional electron gas conductive regions, such as nanowires and conducting quantum dots respectively. The patterned structures are stable at room temperature after removal of the external electric field.
REFERENCES:
patent: 5252835 (1993-10-01), Lieber et al.
patent: 2008/0061284 (2008-03-01), Chu et al.
patent: WO 00/41213 (2000-07-01), None
C. Cen et al., “Nanoscale control of an interfacial metal-insulator transition at room temperature”, Nature Materials, 2008, pp. 1-5.
S. Thiel et al., “Tunable Quasi-Two Dimensional Electron Gases in Oxide Heterostructures”, Science, vol. 313, Sep. 29, 2006, pp. 1942-1945.
Y. Nagamune et al., “Single electron transport and current quantization in a novel quantum dot structure”, Applied Physics Letters , 64 (18), May 2, 1994, pp. 2379-2381.
Seigo Tarucha et al., “Elastic and Inelastic Single Electron Tunneling in Coupled Two Dot System”, Microelectric Engineering 47 (1999) 101-105.
R. Held et al., “In-Plane gates and nanostructures fabricated by direct oxidation of semiconductor heterostructures with an atomic force microscope”, Applied Physics Letters, vol. 73, No. 2, Jul. 13, 1998, pp. 262-264.
G. Valdre et al., “Controlled positive and negative surface charge injection and erasure in a GaAs/AlGaAs based microdevice by scanning probe microscopy”, Nanotechnology 19 (2008)1-6.
A. Ohtomo et al., “A high-mobility electron gas at the LaAlO3/SrTiO3 heterointerface”, Nature, vol. 427, Jan. 29, 2004, pp. 423-426.
Bent Stephen A.
Dickey Thomas L
Foley & Lardner LLP
University of Pittsburgh-of the Commonwealth System of Higher Ed
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