An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Nathan A. Hotaling, Kapil Bharti, Hayden Kriel, Carl G. Simon Jr.
DiameterJ is an open source image analysis plugin for ImageJ. DiameterJ produces ten files for every image that it analyzes. These files include the images that were analyzed, the data to create histograms of fiber radius, pore size, fiber orientation, and
Matthew D. Brubaker, Shannon M. Duff, Todd E. Harvey, Paul T. Blanchard, Alexana Roshko, Aric W. Sanders, Norman A. Sanford, Kristine A. Bertness
We have demonstrated dramatic improvement in the quality of selective-area GaN nanowire growth by controlling the polarity of the underlying nucleation layers. In particular, we find that N- polarity is beneficial for the growth of large ordered nanowire
Yvonne B. Gerbig, Chris A. Michaels, Robert F. Cook, Jodie E. Bradby
Indentation-induced plastic deformation of amorphous silicon (a-Si) thin films was studied by in situ Raman imaging of the deformed contact region of an indented sample, employing a Raman spectroscopy-enhanced instrumented indentation technique (IIT). The
Lin You, Jungjoon Ahn, Yaw S. Obeng, Joseph Kopanski
We demonstrate the ability of the scanning microwave microscope (SMM) to measure the subsurface location of ungrounded. 1.2-μm wide metal lines embedded in a dielectric film. The SMM was used to image Al-Si-Cu metal lines in a test chip that were
Paul M. Haney, Heayoung Yoon, Rob Collins, Prakash Koirala, Nikolai Zhitenev
Electron beam induced current (EBIC) is a powerful technique which measures the charge collection efficiency of electron-hole pairs generated by an electron beam. EBIC offers sub-micron spatial resolution and is naturally suited to study polycrystalline
Ratan K. Debnath, Ting Xie, MD R. Hasan, Nhan V. Nguyen, Abhishek Motayed
We report on the significant performance enhancement of SnO2 thin film ultraviolet (UV) photodetectors (PDs) through incorporation of CuO/SnO2 pn nanoscale heterojuctions. The nanoheterojunctions are self-assembled by sputtering Cu clusters that oxidize in
Brian J. Grummel, Habib A. Mustain, Z. J. Shen, Allen R. Hefner Jr.
Transient liquid phase (TLP) bonding has shown to be an attractive die-attach material and solder for high-temperature packaging. The material reliability of Au-In TLP has been investigated in this work utilizing electrical resistivity measurement as an
Jing Qin, Richard M. Silver, Bryan M. Barnes, Hui Zhou, Ronald G. Dixson, Mark Alexander Henn
Quantitative optical measurements of deep sub-wavelength, three-dimensional, nanometric structures with sensitivity to sub-nanometer details address an ubiquitous measurement challenge. A Fourier domain normalization approach is used in the Fourier optical
Christina A. Hacker, Sujitra J. Pookpanratana, Curt A. Richter, Mariona Coll
In this chapter we examine the various approaches to making electrical contact to large area molecular junctions. We will highlight the experimental concerns that one must consider and the various approaches to make reliable structures and characterize the
Critical dimension atomic force microscopes (CD-AFMs) use flared tips and two-dimensional sensing and control of the tip-sample interaction to enable scanning of features with near-vertical or even reentrant sidewalls. Features of this sort are commonly
Yaw S. Obeng, Chukwudi A. Okoro, Jungjoon Ahn, Lin You, Joseph J. Kopanski
The commercial introduction of three dimensional integrated circuits (3D-ICs) has been hindered by reliability challenges, such as stress related failures, resistivity changes, and unexplained early failures. In this paper, we discuss a new RF-based