节点文献
硅基CoZrO铁氧体磁膜结构RF集成微电感
A RF Integrated Inductor with CoZrO Ferrite Thin Film
【摘要】 制作了一种新型磁膜结构射频集成微电感.该电感使用溶胶-凝胶法制备的CoZrO铁氧体作为磁性薄膜;采用平面单匝形式的金属线圈,从而形成“SiO2绝缘层/磁膜层(CoZrO)/SiO2绝缘层/Cu线圈”的结构,具有结构简单、制作工艺与常规集成工艺兼容等特点.同时,采用相同工艺同批制作了无磁膜微电感作为对比样品,并取各项结构参数与磁膜电感相一致.测试结果表明,2GHz处,磁膜结构微电感的感值(L)为1·75nH、品质因数(Q)为18·5,与无磁膜微电感相比,L和Q的值分别提高了25%和23%.
【Abstract】 A novel RF integrated inductor with ferrite thin-film is fabricated.The inductor has a simple structure of “SiO2 insulating layer/magnetic thin-film(CoZrO)/SiO2 insulating layer/Cu coils”,in which a planar single-turn metal coil and a CoZrO ferrite thin-film fabricated by the Sol-Gel method are used.The fabrication process is compatible with standard integrated process.Inductors without the magnetic thin-film are fabricated as the referential sample using the same processes,in which the structure parameters are consistent with the inductor with magnetic thin-film.The inductance(L) of the inductor with magnetic thin-film is 1.75nH and the quality factor(Q) is 18.5 at 2GHz.Compared with the inductor without magnetic thin-film,L and Q are raised by 25% and 23%,respectively.
- 【文献出处】 半导体学报 ,Chinese Journal of Semiconductors , 编辑部邮箱 ,2005年11期
- 【分类号】TN304.055
- 【被引频次】5
- 【下载频次】128