发明名称 |
Strip-shaped gate tunneling field effect transistor with double-diffusion and a preparation method thereof |
摘要 |
The present invention discloses a strip-shaped gate-modulated tunneling field effect transistor with double-diffusion and a preparation method thereof, belonging to a field of CMOS field effect transistor logic device and the circuit. The tunneling field effect transistor includes a semiconductor substrate, a highly-doped source region, a highly-doped drain region, a double-diffusion source region, a gate dielectric layer, and a control gate, wherein the control gate has a strip-shaped structure with a gate length greater than a gate width, and at one side thereof is connected to the highly-doped drain region and at the other side thereof extends laterally into the highly-doped source region; a region located below the control gate is a channel region; the gate width of the control gate is less than twice width of a source depletion layer; the double-diffusion region has the same doping region as the highly-doped source region and the double-diffusion region has the same doping type as the highly-doped drain region; and the channel region located below a portion of the control gate portion in the highly-doped source region has double-diffusion source doped impurities. The TFET device according to the invention improves its performance, and the preparation method thereof is simple. |
申请公布号 |
US9054075(B2) |
申请公布日期 |
2015.06.09 |
申请号 |
US201314130496 |
申请日期 |
2013.07.08 |
申请人 |
PEKING UNIVERSITY |
发明人 |
Huang Ru;Huang Qianqian;Qiu Yingxin;Zhan Zhan;Wang Yangyuan |
分类号 |
H01L29/423;H01L29/78;H01L29/66;H01L21/28;H01L21/266;H01L21/324;H01L29/73 |
主分类号 |
H01L29/423 |
代理机构 |
Park, Kim & Suh, LLC |
代理人 |
Park, Kim & Suh, LLC |
主权项 |
1. A tunneling field effect transistor, comprising a semiconductor substrate, a highly-doped source region, a highly-doped drain region, a double-diffusion region, a gate dielectric layer, and a control gate, wherein the control gate has a strip-shaped structure with a gate length greater than a gate width, and at one side thereof is connected to the highly-doped drain region and at the other side thereof extends laterally into the highly-doped source region; a region located below the control gate is a channel region; the gate width of the control gate is less than twice width of a source depletion layer; the double-diffusion region has the same doping region as the highly-doped source region and the same doping type as the highly-doped drain region; and the channel region located below a portion of the control gate in the highly-doped source region has double-diffusion source-doped impurities. |
地址 |
Beijing CN |