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首页> 外文期刊>High Temperature Material Processes >INFLUENCE OF TEMPERATURE ON HIGH-FIELD INJECTION MODIFICATION OF MIS STRUCTURES WITH THERMAL SiO2 FILMS DOPED WITH PHOSPHORUS
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INFLUENCE OF TEMPERATURE ON HIGH-FIELD INJECTION MODIFICATION OF MIS STRUCTURES WITH THERMAL SiO2 FILMS DOPED WITH PHOSPHORUS

机译:温度对热SiO 2 磷的高场喷射改性MIS结构的影响

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The paper presents a study of the processes of electron trapping in metal-insulator-semiconductor (MIS) structures with gate dielectric based on silicone dioxide doped with phosphorus under high-field Fowler?Nordheim tunnel injection of electrons in a range of temperatures from 293 to 373 K. We have ascertained that the negative charge being trapped in phosphosilicate glass (PSG) consisted of two components with a different energy of the thermal ionization ΔE_(a1) = 0.2-0.3 eV and ΔE_(a2) = 1.0-1.2 eV. A part of the charge with a low energy of the thermal ionization virtually drain off at annealing temperature of 473 K for a period of time of 20 min and then the dielectric contains only the thermostable part of the negative charge that can be utilized to correct the threshold voltage of MIS transistors. We have ascertained that an implementation of the high-field tunnel injection of electrons for MIS structures with SO_(2)-PSG gate dielectric has raised not only density of negative charge trapped but also its thermostable component.
机译:本文介绍了基于高场馈送器下掺杂磷介质的金属 - 绝缘体 - 半导体(MIS)结构中的电子捕获过程的研究,在高场饲料下掺杂磷掺杂磷晶体晶体晶圆Δnoldheim隧道在一系列温度范围内注射电子。 373 K.我们已经确定了被困在磷酸硅酸盐玻璃(PSG)中被捕获的负电荷由热电电离ΔE_(A1)= 0.2-0.3eV和ΔE_(A2)= 1.0-1.2eV的不同能量的两个组分组成。具有低能量的电荷的一部分电离的低能量在20分钟的时间为473k的退火温度下几乎排出,然后电介质仅包含可用于校正的负电荷的热稳定部分MIS晶体管的阈值电压。我们已经确定了具有SO_(2)-PSG栅极电介质的MIS结构的高场隧道电子的实施的实施不仅捕获的负电荷的密度,而且是其热稳定部件。

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