Enhanced gate induced drain leakage current in HfO2 MOSFETs due to remote interface trap-assisted Tunneling
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作者:
Gurfinkel, M.
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Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USAUniv Maryland, Dept Mech Engn, College Pk, MD 20742 USA
Gurfinkel, M.
[1
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Suehle, J. S.
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NIST, Div Semicond Elect, Gaithersburg, MD USAUniv Maryland, Dept Mech Engn, College Pk, MD 20742 USA
Suehle, J. S.
[2
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Bemstein, J. B.
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Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USAUniv Maryland, Dept Mech Engn, College Pk, MD 20742 USA
Bemstein, J. B.
[1
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Shapira, Yoram
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Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USA
Tel Aviv Univ, Sch EE, Tel Aviv 66978, IsraelUniv Maryland, Dept Mech Engn, College Pk, MD 20742 USA
Shapira, Yoram
[1
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机构:
[1] Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USA
[2] NIST, Div Semicond Elect, Gaithersburg, MD USA
High-kappa dielectric gate stack MOSFETs have been characterized by separating the transversal and lateral electric field contributions to the substrate current. The results show that at low gate biases the substrate current is dominated by a trap-assisted tunneling component denoted by gate induced drain leakage (GIDL) current, which is not observed in conventional SiO2 devices. Ultra-fast substrate current measurements rule out transient charging of the gate oxide as the cause of this component.. A physical model of the observed substrate current dependence is proposed.
机构:
Natl Labs Analog Integrated Circuits, Chongqing 400060, Peoples R China
Sichuan Inst Solid State Circuits, Chongqing 400060, Peoples R ChinaNatl Labs Analog Integrated Circuits, Chongqing 400060, Peoples R China
Xing Dezhi
Liu Hongxia
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机构:
Xidian Univ, Dept Microelect, Xian 710071, Peoples R ChinaNatl Labs Analog Integrated Circuits, Chongqing 400060, Peoples R China
Liu Hongxia
Li Kaicheng
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机构:
Sichuan Inst Solid State Circuits, Chongqing 400060, Peoples R ChinaNatl Labs Analog Integrated Circuits, Chongqing 400060, Peoples R China
Li Kaicheng
2009 IEEE 8TH INTERNATIONAL CONFERENCE ON ASIC, VOLS 1 AND 2, PROCEEDINGS,
2009,
: 1031
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