Focused Ion-Beam Based Nanohole Modeling, Simulation, Fabrication, and Application

Author(s):  
Jack Zhou ◽  
Guoliang Yang

There are three major steps toward the fabrication of a single-digit nanohole: (1) preparing the free-standing thin film by epitaxial deposition and electrochemical etching, (2) making submicron holes (0.2–0.02 μm) by focused ion beam (FIB), and (3) reducing the hole to less than 10 nm by FIB-induced deposition. One specific aim for this paper is to model, simulate, and control the focused ion-beam machining process to fabricate holes that can reach a single-digit nanometer scale on solid-state thin films. Preliminary work has been done on the thin film (30 nm in thickness) preparation, submicron hole fabrication, and ion-beam-induced deposition, and the results are presented.

Author(s):  
Jack Zhou ◽  
Guoliang Yang

In this paper we describe a top down nano-fabrication method to make single-digit nanoholes that we aim to use for DNA and RNA characterization. There are three major steps towards the fabrication of a single-digit nanohole. 1) Preparing the freestanding thin film by epitaxial deposition and electrochemical etching. 2) Making sub-micro holes (0.2 μm to 0.02μm) by focused ion beam (FIB), electron beam (EB), atomic force microscope (AFM), or other methods. 3) Reducing the hole to less than 10 nm by epitaxial deposition, FIB or EB induced deposition. One specific aim for this paper is to model, simulate and control the focused ion beam machining process to fabricate holes which can reach single-digit nanometer scale on solid-state thin films. Preliminary work has been done on the thin film (30 nm in thickness) preparation, sub-micron hole fabrication, and ion beam induced deposition, and results are presented.


1996 ◽  
Vol 62 (601) ◽  
pp. 3706-3711
Author(s):  
Yoshihiro MORI ◽  
Hitoshi TOKURA ◽  
Masanori YOSHIKAWA

1990 ◽  
pp. 987-990
Author(s):  
M. Tanioku ◽  
K. Kuroda ◽  
K. Kojima ◽  
K. Hamanaka ◽  
Y. H. Hisaoka ◽  
...  
Keyword(s):  

Author(s):  
Koji Miyazaki ◽  
Hiroshi Tsukamoto ◽  
Takahiro Miike ◽  
Toshiaki Takamiya

We fabricate metal thin film thermocouples (TFTCs). Au-Pt, Cu-Ni, and W-Ni are deposited on a glass plate using standard thin film processes. The dimension of thermocouple junction is 300μm × 300μm. The thermoelectric powers of TFTCs are different from those of bulk because diffusion of electrons is restricted by the very thin film. The film thickness of TFTCs is of the same order as the mean free path of electrons. However TFTCs are still useful for temperature measurements because the thermoelectric voltage is proportional to measured temperature at thermocouple junction. The response time of Au-Pt TFTCs is about 30ns when the surface of the glass is heated by a YAG pulsed laser. The result compares favorably with measurements by a thermoreflectance method. We also describe W-Ni nano-TFTCs fabricated by Focused Ion Beam for the measurement of temperature distribution in a sub-micron area. In order to reduce the size of the TFTCs we employ a 3-dimensional structure.


2008 ◽  
Vol 93 (18) ◽  
pp. 183509 ◽  
Author(s):  
David Cooper ◽  
Jean-Michel Hartmann ◽  
Bernard Aventurier ◽  
Francois Templier ◽  
Amal Chabli

Author(s):  
Mohan Prasad Manoharan ◽  
Amit Desai ◽  
Amanul Haque

Thin film specimens of titanium - titanium nitride multilayer erosion resistant coating were prepared using liftout technique in Focused Ion Beam - Scanning Electron Microscope (SEM). The fracture toughness of the thin film specimen was measured in situ using a cantilever bending experiment in SEM to be 11.33 MPa/m0.5, twice as much as conventional TiN coatings. Ti–TiN multi-layer coatings are part of a new class of advanced erosion resistant coatings and this paper discusses an experimental technique to measure the fracture toughness of these coatings.


2003 ◽  
Vol 795 ◽  
Author(s):  
H. D. Espinosa ◽  
B. Peng

ABSTRACTThis paper presents a novel Membrane Deflection Fracture Experiment (MDFE) to investigate the fracture toughness of MEMS and other advanced materials in thin film form. It involves the stretching of freestanding thin-film membranes, in a fixed-fixed configuration, containing pre-existing cracks. The fracture behavior of ultrananocrystalline diamond (UNCD), a material developed at Argonne National Laboratory, is investigated to illustrate the methodology. When the fracture initiates from sharp cracks, produced by indentation, the fracture toughness was found to be 4.7 MPa m1/2. When the fracture initiates from blunt notches with radii about 100 nm, machined by focused ion beam (FIB), the mean value of the apparent fracture toughness was found to be 7.2 MPa m1/2. Comparison of these two values, using the model proposed by Drory et al. [9], provides a correction factor of 2/3, which corresponds to a mean value of ρ/2x=1/2.


2005 ◽  
Vol 76 (2) ◽  
pp. 026105 ◽  
Author(s):  
D. Petit ◽  
C. C. Faulkner ◽  
S. Johnstone ◽  
D. Wood ◽  
R. P. Cowburn

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