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兵工学报 ›› 2014, Vol. 35 ›› Issue (5): 634-639.doi: 10.3969/j.issn.1000-1093.2014.05.009

• 论文 • 上一篇    下一篇

CMOS兼容高Q值微机电系统悬浮片上螺旋电感

卢冲赢1, 徐立新1, 李建华1,2, 付博2, 欧修龙2   

  1. (1.北京理工大学 机电动态控制重点实验室, 北京 100081; 2.淮海工业集团有限公司, 山西 长治 046012)
  • 收稿日期:2013-06-18 修回日期:2013-06-18 上线日期:2014-06-23
  • 作者简介:卢冲赢(1986—),男,博士研究生

CMOS-compatible High-Q Micro-electro-mechanical System Suspended on-chip Spiral Inductor

LU Chong-ying1, XU Li-xin1, LI Jian-hua1,2, FU Bo2, OU Xiu-long2   

  1. (1.National Key Laboratory of Science and Technology on Electromechanical Dynamic Control,Beijing Institute of Technology,Beijing 100081,China;2.Huaihai Industries Group Co.Ltd,Changzhi 046012, Shanxi,China)
  • Received:2013-06-18 Revised:2013-06-18 Online:2014-06-23

摘要: 利用微机电系统(MEMS)表面微加工技术设计并制作了一种应用于无线电引信射频前端的CMOS兼容高Q值悬浮片上螺旋电感。电感的制作工艺在热预算和材料选择上均具有良好的CMOS兼容特性。通过采用铜金属悬浮线圈结构减小了片上螺旋电感损耗因素,显著提高了片上螺旋电感Q值。采用电磁场有限元分析软件HFSS对该电感模型进行了仿真研究,完成了悬浮片上螺旋电感的制备并进行了测量。测量结果表明:所设计的CMOS兼容MEMS悬浮片上螺旋电感Q值在1~7.6GHz测量频段均大于20,在7.4 GHz频段最大值达到了38.

关键词: 兵器科学与技术, 微机电系统, CMOS兼容工艺, 悬浮片上螺旋电感, Q值, 无线电引信

Abstract: A COMS-compatible high Q-factor suspended on-chip spiral inductor used in the radio frequency front-end of radio fuze is designed and fabricated using the micro-electro-mechanical system (MEMS) surface-micromachining technology. The fabrication process of inductor is compatible with CMOS in the aspects of both thermal budget and materials. The loss factors of on-chip spiral inductor are reduced by using a suspended copper coil, and the Q-factor is significantly improved. The improved inductor model is analyzed by the electromagnetic finite element analysis software HFSS. The MEMS suspended on-chip inductor is measured. The measurement results show that the Q-factor of inductor is more than 20 in the frequency range of 1~7.6 GHz and reaches 38 at 7.4 GHz.

Key words: ordnance science and technology, micro-electro-mechanical system, COMS-compatible process, suspended on-chip spiral inductor, Q-factor, radio fuze

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