TY - JOUR
T1 - Device linearity improvement of In0.49Ga0.51P/In 0.15Ga0.85As doped-channel FETs with a metal plug alloy process
AU - Chien, Feng Tso
AU - Liao, Chien Nan
AU - Yin, Jin Mu
AU - Chiu, Hsien Chin
AU - Tsai, Yao Tsung
PY - 2008/3/1
Y1 - 2008/3/1
N2 - The effect of reducing source and drain resistance on the device linearity of doped-channel heterostructure FETs is investigated in this work. The proposed metal plug alloy process reduces the parasitic ohmic alloyed resistance caused by the undoped Schottky layer, which not only enhances the device source resistances, dc, RF and power characteristics, but also improves the device linearity of doped-channel heterostructute FETs. In particular, we compare the performance of dc, RF and microwave power characteristics between proposed partial drain/source ohmic recess metal plug anneal InGaP/InGaAs/GaAs doped-channel FETs (OR-DCFETs) and conventional doped-channel FETs (DCFETs). Due to lower source and drain resistances, OR-DCFETs demonstrate higher device current, higher power-added efficiency (PAE) and especially better device linearity than conventional doped-channel FETs, making OR-DCFETs very suitable for microwave power device applications.
AB - The effect of reducing source and drain resistance on the device linearity of doped-channel heterostructure FETs is investigated in this work. The proposed metal plug alloy process reduces the parasitic ohmic alloyed resistance caused by the undoped Schottky layer, which not only enhances the device source resistances, dc, RF and power characteristics, but also improves the device linearity of doped-channel heterostructute FETs. In particular, we compare the performance of dc, RF and microwave power characteristics between proposed partial drain/source ohmic recess metal plug anneal InGaP/InGaAs/GaAs doped-channel FETs (OR-DCFETs) and conventional doped-channel FETs (DCFETs). Due to lower source and drain resistances, OR-DCFETs demonstrate higher device current, higher power-added efficiency (PAE) and especially better device linearity than conventional doped-channel FETs, making OR-DCFETs very suitable for microwave power device applications.
UR - http://www.scopus.com/inward/record.url?scp=42549151204&partnerID=8YFLogxK
U2 - 10.1088/0268-1242/23/3/035009
DO - 10.1088/0268-1242/23/3/035009
M3 - 文章
AN - SCOPUS:42549151204
SN - 0268-1242
VL - 23
JO - Semiconductor Science and Technology
JF - Semiconductor Science and Technology
IS - 3
M1 - 035009
ER -