Miniature Mesa Extension for a Planar Submicron AlGaN/GaN HEMT Gate Formation.
Miniature Mesa Extension for a Planar Submicron AlGaN/GaN HEMT Gate Formation.
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DOI:
10.3390/mi13112007
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发表时间:
2022-11-18
期刊:
影响因子:
3.4
通讯作者:
Elgaid, Khaled
中科院分区:
文献类型:
--
作者:
Alathbah, Moath;Elgaid, Khaled
In this letter, a novel approach is presented to overcome issues in AlGaN/GaN high electron mobility transistors (HEMTs), such as metal discontinuity of the gate stemmed from conventional mesa isolation. This usually requires a careful mesa etch process to procure an anisotropic mesa-wall profile. An alternative technique is the use of ion implantation for device isolation instead of conventional mesa for a planar device formation. However, ion implantation is a costly process and not always easily accessible. In this work, the proposed method is to simply extend the mesa below the gate just enough to accommodate the gatefeed, thereby ensuring the entire gate is planar in structure up to the gatefeed. The newly developed device exhibited no compromise to the DC (direct current) and RF (radio frequency) performance. Conversely, it produced a planar gate configuration with an enhanced DC transconductance (approximately 20% increase is observed) and a lower gate leakage while the etch process is considerably simplified. Similarly, the RF transconductance of proposed device (device B) increased by 80% leading to considerable improvements in RF performance.
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影响因子:
4
作者:
Arulkumaran, S.;Ng, G. I.;Lee, C. H.
通讯作者:
Lee, C. H.
影响因子:
1.6
作者:
Chiu, Hsien-Chin;Chen, Chao-Hung;Chuang, Hao-Wei
通讯作者:
Chuang, Hao-Wei
DOI:
10.1002/pssa.200461563
发表时间:
2005-04-01
影响因子:
2
作者:
Palacios, T;Shen, L;Mishra, UK
通讯作者:
Mishra, UK
DOI:
10.3390/ma15030819
发表时间:
2022-01-21
期刊:
Materials (Basel, Switzerland)
影响因子:
--
作者:
Min SR;Cho MS;Lee SH;Park J;An HD;Kim GU;Yoon YJ;Seo JH;Jang JW;Bae JH;Lee SH;Kang IM
通讯作者:
Kang IM
影响因子:
3.1
作者:
BAHL, SR;LEARY, MH;DELALAMO, JA
通讯作者:
DELALAMO, JA