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IEICE TRANSACTIONS on Electronics

Sb-Based n- and p-Channel Heterostructure FETs for High-Speed, Low-Power Applications

J. Brad BOOS, Brian R. BENNETT, Nicolas A. PAPANICOLAOU, Mario G. ANCONA, James G. CHAMPLAIN, Yeong-Chang CHOU, Michael D. LANGE, Jeffrey M. YANG, Robert BASS, Doewon PARK, Ben V. SHANABROOK

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Summary :

Heterostructure field-effect transistors (HFETs) composed of antimonide-based compound semiconductor (ABCS) materials have intrinsic performance advantages due to the attractive electron and hole transport properties, narrow bandgaps, low ohmic contact resistances, and unique band-lineup design flexibility within this material system. These advantages can be particularly exploited in applications where high-speed operation and low-power consumption are essential. In this paper, we report on recent advances in the design, material growth, device characteristics, oxidation stability, and MMIC performance of Sb-based HEMTs with an InAlSb upper barrier layer. The high electron mobility transistors (HEMTs) exhibit a transconductance of 1.3 S/mm at VDS = 0.2 V and an fTLg product of 33 GHz-µm for a 0.2 µm gate length. The design, fabrication and improved performance of InAlSb/InGaSb p-channel HFETs are also presented. The HFETs exhibit a mobility of 1500 cm2/V-sec, an fmax of 34 GHz for a 0.2 µm gate length, a threshold voltage of 90 mV, and a subthreshold slope of 106 mV/dec at VDS = -1.0 V.

Publication
IEICE TRANSACTIONS on Electronics Vol.E91-C No.7 pp.1050-1057
Publication Date
2008/07/01
Publicized
Online ISSN
1745-1353
DOI
10.1093/ietele/e91-c.7.1050
Type of Manuscript
Special Section INVITED PAPER (Special Section on Heterostructure Microelectronics with TWHM 2007)
Category

Authors

Keyword

HEMTs,  HFETs,  MMICs,  InAs,  InGaSb