Results 11 to 20 of about 4,153 (244)

Effect of TMAH on the rheological behavior of alumina slurries for gelcasting

Journal of Asian Ceramic Societies, 2017
Tetramethyl ammonium hydroxide (TMAH) has been demonstrated to increase solids loading effectively and to accelerate gelling rate of alumina slurries gelled by Isobam (a copolymer of isobutylene and maleic anhydride) system.
Jian Zhang, Yi Sun, Shunzo Shimai, Xiang Peng, Jin Zhao, Guohong Zhou, Shiwei Wang   +6 more
doaj   +3 more sources

Effective suppression of interface states in recessed-gate MIS-HEMTs by TMAH wet etching

Applied Physics Express, 2023
The effect of tetramethylammonium hydroxide (TMAH) treatment prior to gate dielectric deposition on the performance of recessed-gate AlGaN/GaN metal-insulator-semiconductor high electron mobility transistors (MIS-HEMTs) was investigated.
Yu Li, Guohao Yu, Heng Wang, Jiaan Zhou, Zheming Wang, Runxian Xing, Shaoqian Lu, An Yang, Bingliang Zhang, Yong Cai, Zhongming Zeng, Baoshun Zhang   +11 more
doaj   +2 more sources

Fabrication of recessed-gate AlGaN/GaN MOSFETs using TMAH wet etching with Cu ion implantation

Results in Physics
In this study, recessed-gate AlGaN/GaN MOSFETs were fabricated using a novel recess etching method––TMAH wet etching with Cu ion implantation. This innovative approach injects Cu ions selectively into the target AlGaN layer, creating defects that are ...
Jun Hyeok Heo, Sang Ho Lee, Jin Park, Ga Eon Kang, Young Jun Yoon, In Man Kang   +5 more
doaj   +2 more sources

Characterization of m-GaN and a-GaN Crystallographic Planes after Being Chemically Etched in TMAH Solution

Energies, 2021
This paper proposes a new technique to engineer the Fin channel in vertical GaN FinFET toward a straight and smooth channel sidewall. Consequently, the GaN wet etching in the TMAH solution is detailed; we found that the m-GaN plane has lower surface ...
Nedal Al Taradeh, Eric Frayssinet, Christophe Rodriguez, Frederic Morancho, Camille Sonneville, Luong-Viet Phung, Ali Soltani, Florian Tendille, Yvon Cordier, Hassan Maher   +9 more
doaj   +2 more sources

Dual-Surface Modification of AlGaN/GaN HEMTs Using TMAH and Piranha Solutions for Enhancing Current and 1/f-Noise Characteristics

IEEE Journal of the Electron Devices Society, 2018
We demonstrated dual-surface modification of GaN/AlGaN/GaN high-electron mobility transistors using tetramethylammonium hydroxide (TMAH) and piranha solutions prior to gate metallization.
M. Siva Pratap Reddy, Won-Sang Park, Ki-Sik Im, Jung-Hee Lee   +3 more
doaj   +2 more sources

Low leakage and high blocking voltage GaN-on-GaN Schottky diode by TMAH surface treatment

Power Electronic Devices and Components
In this study, the impact of surface treatment by TMAH and HF on the electrical characteristics of GaN-on-GaN Schottky diodes is examined through I–V and C–V characterizations.
Vishwajeet Maurya, Daniel Alquier, Hala El Rammouz, Pedro Fernandes Paes Pinto Rocha, Thomas Kaltsounis, Eugénie Martinez, Florian Bartoli, Eric Frayssinet, Yvon Cordier, Matthew Charles, Julien Buckley   +10 more
doaj   +2 more sources

Friction-induced selective etching on silicon by TMAH solution

RSC Advances, 2018
Friction-induced selective etching by TMAH solution was proposed for patterning a silicon surface with site control, high flexibility and low cost.
Chao Zhou, Jiaming Li, Lei Wu, Guangran Guo, Hongbo Wang, Peng Chen, Bingjun Yu, Linmao Qian   +7 more
openaire   +4 more sources

Surface Texturing of Silicon {100} in an Extremely Low Concentration TMAH for Minimized Reflectivity

ECS Journal of Solid State Science and Technology, 2019
Micro-texturing of silicon front surface which consists of geometrical array of structures is needed to reduce the overall reflectance and to increase light trapping by multiple internal reflections of incident light for solar cell application.
Gupta, Arti, Pal, Prem, Sharma, Chandra Shekhar   +2 more
core   +2 more sources

Vertical Etching of Scandium Aluminum Nitride Thin Films Using TMAH Solution

Nanomaterials, 2023
A wide bandgap, an enhanced piezoelectric coefficient, and low dielectric permittivity are some of the outstanding properties that have made ScxAl1−xN a promising material in numerous MEMS and optoelectronics applications.
A. S. M. Z. Shifat, I. Stricklin, Ravi Kiran Chityala, A. Aryal, G. Esteves, A. Siddiqui, T. Busani   +6 more
semanticscholar   +1 more source

Comparison of tetramethylammonium hydroxide (TMAH), trimethylsulfonium hydroxide (TMSH), and trimethylphenylammonium hydroxide (TMPAH) thermochemolysis for in situ space analysis of organic molecules in planetary environments.

Talanta: The International Journal of Pure and Applied Analytical Chemistry, 2023
One of the main objectives of present and future space exploration missions dedicated to astrobiology is the detection of organic molecules of interest for life (e.g. amino and fatty acids).
D. Boulesteix, A. Buch, A. Williams, Y. He, C. Freissinet, M. Trainer, J. Stern, C. Szopa   +7 more
semanticscholar   +1 more source