Finite element analyses of thin film active grazing incidence x-ray optics

Author(s):  
William N. Davis ◽  
Paul B. Reid ◽  
Daniel A. Schwartz
Author(s):  
Jonathan Ogle ◽  
Daniel Powell ◽  
Eric Amerling ◽  
Detlef Matthias Smilgies ◽  
Luisa Whittaker-Brooks

<p>Thin film materials have become increasingly complex in morphological and structural design. When characterizing the structure of these films, a crucial field of study is the role that crystallite orientation plays in giving rise to unique electronic properties. It is therefore important to have a comparative tool for understanding differences in crystallite orientation within a thin film, and also the ability to compare the structural orientation between different thin films. Herein, we designed a new method dubbed the mosaicity factor (MF) to quantify crystallite orientation in thin films using grazing incidence wide-angle X-ray scattering (GIWAXS) patterns. This method for quantifying the orientation of thin films overcomes many limitations inherent in previous approaches such as noise sensitivity, the ability to compare orientation distributions along different axes, and the ability to quantify multiple crystallite orientations observed within the same Miller index. Following the presentation of MF, we proceed to discussing case studies to show the efficacy and range of application available for the use of MF. These studies show how using the MF approach yields quantitative orientation information for various materials assembled on a substrate.<b></b></p>


2016 ◽  
Vol 49 (1) ◽  
pp. 182-187 ◽  
Author(s):  
J. Todt ◽  
H. Hammer ◽  
B. Sartory ◽  
M. Burghammer ◽  
J. Kraft ◽  
...  

Synchrotron X-ray nanodiffraction is used to analyse residual stress distributions in a 200 nm-thick W film deposited on the scalloped inner wall of a through-silicon via. The diffraction data are evaluated using a novel dedicated methodology which allows the quantification of axial and tangential stress components under the condition that radial stresses are negligible. The results reveal oscillatory axial stresses in the range of ∼445–885 MPa, with a distribution that correlates well with the scallop wavelength and morphology, as well as nearly constant tangential stresses of ∼800 MPa. The discrepancy with larger stress values obtained from a finite-element model, as well as from a blanket W film, is attributed to the morphology and microstructural nature of the W film in the via.


2017 ◽  
Author(s):  
A. P. Honkanen ◽  
C. Ferrero ◽  
J. P. Guigay ◽  
V. Mocella

1998 ◽  
Author(s):  
Keisuke Tamura ◽  
Koujun Yamashita ◽  
Hideyo Kunieda ◽  
Yuzuru Tawara ◽  
Kazutoshi Haga ◽  
...  

2000 ◽  
Vol 368 (2) ◽  
pp. 297-299 ◽  
Author(s):  
Xuantong Ying ◽  
Xinmin Xu

1996 ◽  
Vol 29 (1) ◽  
pp. 129-132 ◽  
Author(s):  
I A Schelokov ◽  
Yu A Basov

2019 ◽  
Vol 52 (2) ◽  
pp. 247-251
Author(s):  
Detlef-M. Smilgies

Recently, surface and thin-film studies using area detectors have become prevalent. An important class of such systems are lamellar thin films formed by small molecules, liquid crystals or semicrystalline polymers. Frequently, the lamellae align more or less parallel to the substrate. Such structures can be easily discerned by their characteristic X-ray scattering close to the incident plane. This paper describes how such patterns can be simulated, in order to extract morphological information about the thin film.


1995 ◽  
Vol 39 ◽  
pp. 659-664 ◽  
Author(s):  
Kenji Ishida ◽  
Akinori Kita ◽  
Kouichi Hayashi ◽  
Toshihisa Horiuchi ◽  
Shoichi Kal ◽  
...  

Thin film technology is rapidly evolving today, and the characterization of the thin film and its surface have become very important issue not only from scientific but also technological viewpoints. Although x-ray diffraction measurements have been used as suitable evaluation methods in crystallography studies, its application to the structural evaluation of the thin films, especially organic one having the low electron densities, is not easy due to the small amounts of scattering volume and the high obstructive scattering noise from the substrate. However, the x-ray diffraction measurements under grazing incidence will aid not only in overcoming the such problems but also in analyzing in-plane structure of the thin films. Therefore, so-called grazing incidence x-ray diffraction (GIXD) has been recognized as one of the most powerful tools for the surface and thin film studies.


2014 ◽  
Vol 83 (12) ◽  
Author(s):  
M A Shcherbina ◽  
S N Chvalun ◽  
Sergey Anatol'evich Ponomarenko ◽  
Mikhail Valentinovich Kovalchuk

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