一种使用平面线圈结构的微型电磁继电器

本文介绍一种采用平面线圈结构的微型电磁继电器的制造工艺和理论分析。这种继电器的大小大约是 4mm× 4mm× 0 .5mm ,工艺比较简单 ,主要采用光刻、蒸镀、电镀和腐蚀牺牲层等普通的微加工技术来完成全部制作工艺。因此可以大大地降低继电器的生产成本、物理尺寸和制造的复杂性。另外 ,还进行了一些有关线圈通过激励电流后对活动电极产生电磁力的理论计算和仿真 ,利用这些结果可以对这种电磁继电器的结构和参数进行优化设计

An Electromagnetic Microrelay Using a Planar Coil

This paper presents the fabrication and theoretical analysis of an electromagnet ic microrelay using a planar coil. The microrelay dimension of about 4 mm ?? 4 mm ?? 0. 5mm is fabricated using the common micromachining technol?? ogy like lithography, electroplating of nickel as well as sacrificial layer etching. So the microrelay enables drastic reduc?? tions in fabricat ion costs, physical size and design complexity. Theoretical calculations and simulat ions are also carried out with respect to the electromagnet ic force yielded by the exciting electromagnetic coil. The structure and parameters concerning the electromagnetic microrelay can be opt imized using the results.