A New Technique for Depth Profiling on a Nanometer Scale

1995 ◽  
Vol 405 ◽  
Author(s):  
H. Schwenke ◽  
J. Knoth ◽  
R. Günther ◽  
G. Wiener ◽  
R. Bormann

AbstractA new technique is presented for the determination of concentration depth profiles. Surface atoms are sputtered by an ion beam and deposited on a clean silicon wafer. The wafer is rotated behind a slit in step with the sputtering progress. In this way the depth profile of the sample is transferred into a lateral distribution of the sputtered atoms on the target wafer. Subsequently the wafer is scanned by Total Reflection X-ray Fluorescence Spectrometry (TXRF) which is capable of detecting traces of metallic impurities on wafers down to 10-4 of an atomic monolayer. The sequence of ion-beam sputtering, deposition of the sputtered atoms and TXRF analysis results in an excellent depth resolution in the case of areal structures. Using an ion source of the Kaufmann type, an extrapolated perpendicular resolution better than 0.1 nm was obtained for a 1500 mm2 surface. For a surface area of 3 mm2 a depth resolution of 1 nm is expected. 1.4 nm was actually measured to be the width of a coherent Ti/Al-interface within a layered structure.

2010 ◽  
Vol 97-101 ◽  
pp. 1243-1247 ◽  
Author(s):  
Bo Hong ◽  
Xue Mei Wu ◽  
Lan Jian Zhuge ◽  
Zhao Feng Wu ◽  
Fei Zhou

Amorphous silicon carbide nitride (SiCN) films have been deposited in a dual ion beam sputtering deposition (DIBSD) using a SiC target. Films with various compositions were obtained by changing the nitrogen and argon gas ratio in the assisted ion source. Mechanical properties of the SiCN films were evaluated by Nano-indentation in N2 ambient. Surface morphology of the films was characterized by an Atomic Force Microscope (AFM). The microstructure and chemical bonding correlating with behavior of the films were studied by a Fourier transform infrared spectroscopy (FTIR) and a laser Raman spectroscopy. The results show that N2 proportion in the assisted ion source has a great effect on the structure and properties of the films and the mechanism was discussed in brief.


2011 ◽  
Vol 148-149 ◽  
pp. 54-57
Author(s):  
Xiao Ping Lin ◽  
Yun Dong ◽  
Lian Wei Yang

The Al2O3 nano-films of different thicknesses (1~100nm) were successfully deposited on the monocrystalline Si surface by using ion beam sputtering deposition. The surface topography and the component of nano-films with different thickness were analyzed. The quality of the surface of nano-films was systematically studied. When the films’ thickness increase, the studies by atomic force microscope (AFM), X-ray photoelectron spectrum(XPS) show that the gathering grain continually grows up and transits from acerose cellula by two-dimensional growth to globularity by three-dimensional growth. The elements O, Al and Si were found on the surface of Al2O3 nano-films. With the thickness of the films increasing, the content of Al gradually increases and the intensity peak of Si wears off, the surface quality of the deposited films is ceaselessly improved


2007 ◽  
Vol 61 (14-15) ◽  
pp. 2855-2858 ◽  
Author(s):  
J.P. Rivière ◽  
D. Texier ◽  
J. Delafond ◽  
M. Jaouen ◽  
E.L. Mathé ◽  
...  

2010 ◽  
Vol 443 ◽  
pp. 465-468
Author(s):  
Pei Quan Guo ◽  
Shou Ren Wang ◽  
Huan Yong Cui

The study reports a new surface formation technology during manufacturing process of parallel indexing cam mechanism, ion beam sputtering deposition, in which the operation temperature can be controlled below the limitation of phases exchanging or at room temperature. Phase exchanging deformation can be avoided and the shape accuracy and dimension accuracy can be improved compared with surface quenching process. The microstructure and properties of TiAlN/AlN composite film deposited on the profile surface of cam (made of 45 steel) by ion beam sputtering deposition were discussed. X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscope (TEM) analysis has been used to characterize film’s microstructure and properties. The micro-hardness and adherence grade were tested.


2021 ◽  
Vol 61 (03) ◽  
Author(s):  
Jinlin Bai ◽  
Huasong Liu ◽  
Yugang Jiang ◽  
Lishuan Wang ◽  
Xiao Yang ◽  
...  

1998 ◽  
Vol 4 (S2) ◽  
pp. 492-493 ◽  
Author(s):  
M.W. Phaneuf ◽  
J. Li ◽  
T. Malis

Focused Ion Beam or FIB systems have been used in integrated circuit production for some time. The ability to combine rapid, precision focused ion beam sputtering or gas-assisted ion etching with focused ion beam deposition allows for rapid-prototyping of circuit modifications and failure analysis of defects even if they are buried deep within the chip's architecture. Inevitably, creative TEM researchers reasoned that a FIB could be used to produce site specific parallel-sided, electron transparent regions, thus bringing about the rather unique situation wherein the specimen preparation device often was worth as much as the TEM itself.More recently, FIB manufacturers have concentrated on improving the resolution and imaging characteristics of these instruments, resulting in a more general-purpose characterization tool. The Micrion 2500 FIB system used in this study is capable of 4 nm imaging resolution using either secondary electron or secondary ions, both generated by a 50 kV liquid metal gallium ion source.


Sign in / Sign up

Export Citation Format

Share Document