Temperature performance of AlGaN/GaN MOS-HEMTs on Si substrates using Gd2O3 as gate dielectric

GaN based high electron mobility transistors have draw great attention due to its potential in high temperature, high power and high frequency applications [1, 2]. However, significant gate leakage current is still one of the issues which need to be solved to improve the performance and reliability of the devices [3]. Several research groups have contributed to solve this problem by using metal–oxide–semiconductor HEMTs (MOSHEMTs), with a thin dielectric layer, such as SiO2 [4], Al2O3 [5], HfO2 [6] and Gd2O3 [7] between the gate and the barrier layer on AlGaN/GaN heterostructures. Gd2O3 has shown low interfacial density of states(Dit) with GaN and a high dielectric constant and low electrical leakage currents [8], thus is considered as a promising candidate for the gate dielectrics on GaN. MOS-HEMTs using Gd2O3 grown by electron-beam heating [7] or molecular beam epitaxy (MBE) [8] on GaN or AlGan/GaN structure have been investigated, but further research is still needed in Gd2O3 based AlGaN/GaN MOSHEMTs.

Restauración de las iglesias de los municipios de la comarca del Bajo Martín (Teruel): Jatiel, Samper De Calanda, Urrea De Gaén e Híjar

En el ámbito aragonés durante los últimos diez años se han llevado a cabo numerosas actuaciones de distintos intereses y calados en el patrimonio histórico artístico vinculado principalmente a edificios destinados al culto religioso. Cabe destacar la restauración de cuatro templos de la Comarca del Bajo Martín, en la provincia de Teruel.

Ādarabāda Mārāsapandanuṃ Pandanāmuṃ : Ḍākṭara Hāūganāṃ īnāmano rīsālo, asala Pehelavī jubānamāṃ, Romana, tathā Gujarātī haraphe uccāra, Gujarātī tarajumo, ane asalamāṃ āvelā daraeka śabdanī pharahaṅga sudhāṃ /

On Zoroastrian ethics.

Ama ; Kurama tengu ; Teika ; Kannyōkyū ; Tōgan koji /

"Meiji 32-nen... shuppan ontodokezumi"--Colophon.

Lección poética : Sátira contra los vicios introducidos en la poesía castellana impresa por la Real Academia Española, por ser entre las presentadas la que mas se acerca a la que ganó el premio /

Mode of access: Internet.

Levanon, shem ha-kolel la-ʻinyanim ha-meḥubarim le-varer ule-laben yesodot ṿe-shorshe leshon ha-ḳodesh, meshalaṿ u-melitsotaṿ, ha-sefer ha-rishon shemo Gan naʻul u-vo sheloshah batim ...

Mode of access: Internet.

Qin ding Ping ding Shan Gan Xinjiang Hui fei fang lue : 320 juan.

Caption title.

Tai shang gan ying pian tu shuo /

On double leaves, oriental style, in 2 cases.

Vid skenet av krigslågan ...

Title of original: Bij't licht van de oorlogsvlam.

Y ffordd i gaffael cyfoeth; neu, Rhisiat druan: yn ddiwygiedig gan Doctor Franklin ... gydag ychwanegiad, Y modd i wneuthur llawer o ychydig, gan B. Short. Ac a gyfieithiwyd idd y gymraeg gan Thomas Roberts, Llwynrhudol.

Signed: Richard Saunders.

La felicidad de la vida campo : écloga, impresa por la Real Academia Española, por ser entre todas las presentadas, la que mas se acerca á la que ganó el premio /

Mode of access: Internet.