发明名称 |
Ambipolar synaptic devices |
摘要 |
Device architectures based on trapping and de-trapping holes or electrons and/or recombination of both types of carriers are obtained by carrier trapping either in near-interface deep ambipolar states or in quantum wells/dots, either serving as ambipolar traps in semiconductor layers or in gate dielectric/barrier layers. In either case, the potential barrier for trapping is small and retention is provided by carrier confinement in the deep trap states and/or quantum wells/dots. The device architectures are usable as three terminal or two terminal devices. |
申请公布号 |
US9472641(B2) |
申请公布日期 |
2016.10.18 |
申请号 |
US201514684343 |
申请日期 |
2015.04.11 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
Afzali-Ardakani Ali;Chen Tze-Chiang;Gopalakrishnan Kailash;Hekmatshoartabari Bahman |
分类号 |
H01L29/06;H01L31/00;H01L29/66;H01L51/05;H01L21/8238;H01L29/08;H01L29/165;H01L29/267;H01L29/778;G06N3/063;G11C11/54;H01L29/12;H01L29/10;H01L51/00;H01L21/28;H01L29/423;H01L29/788 |
主分类号 |
H01L29/06 |
代理机构 |
Otterstedt, Ellenbogen & Kammer, LLP |
代理人 |
Percello Louis J.;Otterstedt, Ellenbogen & Kammer, LLP |
主权项 |
1. An ambipolar synaptic device comprising:
a semiconductor layer; a gate operatively associated with the semiconductor layer; a first structure configured for injecting both electrons and holes into the semiconductor layer, and a second structure configured for trapping, de-trapping and/or recombination of both electrons and holes injected by the first structure into the semiconductor layer; wherein the first structure includes a source/drain structure comprised of a highly doped region of a first doping type confined within a highly doped region of a second doping type, the second structure includes a channel having the first doping type operatively associated with the source/drain structure, and further including a gate dielectric or barrier layer between the gate and the channel, at least one of the channel and gate dielectric or barrier layer including quantum wells or quantum dots. |
地址 |
Armonk NY US |