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.
Andrew Winchester, Michael Mastro, Travis Anderson, Jennifer Hite, Andrei Kolmakov, Sujitra Pookpanratana
Gallium nitride (GaN) is a promising wide-bandgap material for high-power electronics, where GaN-on-GaN homoepitaxy is being developed for fabrication of compact high-voltage vertical devices. However, GaN substrate quality is variable and strongly
We give a review of the multiscale Green's function method for modeling modern two-dimensional nanomaterials such as graphene and other Xenes. The method is applicable to materials at different space and time scales and is computationally efficient. This
Seulki Cho, Alexander Zaslavsky, Curt A. Richter, Jacob Majikes, James Alexander Liddle, Francois Andrieu, Sylvain Barraud, Arvind Balijepalli
Double gate fully depleted SOI transistors operating in a remote gate configuration and under closed-loop feedback allow noise performance that exceeds their single gate counterparts by more than an order of magnitude. We leverage this high performance to
Evgheni Strelcov, Lin You, Yaw S. Obeng, Joseph J. Kopanski
In recent years, scanning probe microscopy (SPM) has drawn substantial attention for subsurface imaging, since the ultra-sharp AFM tip (≈10 nm in radius) can deliver and detect, mechanical and electrical signals right above the material's 3D volume with
Power electronics is currently a hot topic due to its important role in fighting climate change. Gate oxide breakdown is the Achilles heel of power devices and it is well known that extrinsic breakdown is the real concern. However, the root cause of
Thick gate oxide breakdown mechanism becomes an important topic again due to the rising demand of power electronics. The failure of the percolation model in explaining the observed Weibull shape factor of thick oxide breakdown distribution seriously
Papa Amoah, Joseph J. Kopanski, Yaw S. Obeng, Christopher Sunday, Chukwudi Okoro, Lin You, Dmirty Veksler
In this paper, we present an overview of our current research focus in developing non-destructive metrology for monitoring reliability issues in 3D-integrated electronic systems. We introduce a suite of non-destructive metrologies that can serve as early
Elisabeth Mansfield, David Goggin, Jason Killgore, Taylor Aubry
Devices containing transition metal dichalcogenides are being investigated for next generation electronics. Understanding material properties under typical use conditions is important for longevity and effectiveness of these devices. In this study, CVD
Kenneth Myers, Patrick Lenahan, James Ashton, Jason Ryan
Electrically detected magnetic resonance (EDMR) is arguably the most sensitive method available to study electrically active point defects in semiconductor devices. Most EDMR studies have utilized spin dependent recombination current and thus require p-n
Siyuan Zhang, Hsun-Jen Chuang, SON LE, Curt A. Richter, Kathleen McCreary, Berend Jonker, Angela R. Hight Walker, Christina Hacker
The development of processes to controllably dope two-dimensional semiconductors is critical to achieving next generation electronic and optoelectronic devices. Understanding the nature of the contacts is a critical step for realizing efficient charge
Andrew Madison, John S. Villarrubia, Kuo-Tang Liao, Craig R. Copeland, Joshua Schumacher, Kerry Siebein, Robert Ilic, James Alexander Liddle, Samuel M. Stavis
Anita Balachandra, David Gundlach, Paul D. Hale, Kevin K. Jurrens, R Joseph Kline, Tim McBride, Ndubuisi George Orji, Sanjay (Jay) Rekhi, Sivaraj Shyam-Sunder, David G. Seiler
Semiconductors are critical to our Nation's economic growth, national security, and public health and safety. Revolutionary advances in microelectronics continue to drive innovations in communications, information technology, health care, military systems
Zhihui Cheng, Chin-Sheng Pan, Peiqi Wang, Yanqing Wu, Davood Shahrjerdi, Iuliana Radu, Max Lemme, Lian-Mao Peng, Xiangfeng Duan, Zhihong Chen, Joerg Appenzeller, Steven Koester, Eric Pop, Aaron Franklin, Curt A. Richter
Emerging low-dimensional nanomaterials have been studied for decades in device applications as field-effect transistors (FETs). However, properly reporting and comparing device performance has been challenging due to the involvement and interlinking of
Xiao Lyu, Pragya Shrestha, Mengwei Si, Panni Wang, Junkang Li, Kin (Charles) Cheung, Yu Shimeng, Peide Ye
In this work, we present the first experimental determination of nucleation time and domain wall (DW) velocity by studying switching dynamics of ferroelectric (FE) hafnium zirconium oxide (HZO). Experimental data and simulation results were used to