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La-doped ZrO2 based BEoL decoupling capacitors

机译:基于La掺杂的ZrO2的BEoL去耦电容器

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摘要

Presented within this paper is a study on thin La-doped ZrO2 films used as dielectric material in decoupling capacitors in BEoL. The effect of combined atomic layer deposition processes and the integration concept of La are discussed with respect to capacitance density, leakage current, breakdown voltage and reliability. Physical characterization helps to understand the measured parameters. Overall, the La-doping is able to improve the breakdown voltage significantly without degrading reliability, but at the expense of increased capacitance density compared to undoped films.
机译:本文介绍的是对BeoL的去耦电容器中用作电介质材料的La掺杂ZrO2薄膜的研究。就电容密度,漏电流,击穿电压和可靠性,讨论了组合的原子层沉积工艺的影响和La的集成概念。物理特性有助于了解测量的参数。总体而言,La掺杂能够在不降低可靠性的情况下显着提高击穿电压,但与未掺杂的薄膜相比,其代价是电容密度的增加。

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