微机械簧片开关为许多MEMS应用提供了新的解决方案

　　微机械簧片开关为许多MEMS应用提供了新的解决方案。

　　一个微型开关使范围广泛的各种应用需要高可靠性，体积小，成本低。

　　微细加工技术，简单地说，是利用半导体制造设备，以这样的方式，创造微机械系统，服务于特定的目的。该公司的目标是开发一个小型的，密封的簧片开关，就像大功能，标准密封簧片开关。

　　簧片开关的基本临界要求是当触点接近足够强度的磁场时，触点必须闭合，当开关处于关闭状态或打开状态时，它们必须产生零功率。该已经开发出一种超小型，密封簧片开关与瑞士斯沃琪集团合作。瑞士斯沃琪集团以外，梅代尔是全球独家营销机构为微小型簧片开关。

　　By definition， a reed switch is a small， electromechanical device that contains one or more ferromagnetic reeds hermetically sealed in a glass envelope. When the reed switch is brought into a magnetic field， the reeds close， creating a switching function. A typical reed switch is shown in Figure 1. The nickel/iron base metals are relatively soft and would not be good choices for use in a reed switch. This is because high switching loads initiate massive metal transfer， causing the contacts to become stuck in the closed position. However， the switch‘s ferromagnetic properties are essential for proper magnetic actuation. A more preferable manufacturing option is the use of a hard metal at the switching contact surface. Typically， rhodium and/or ruthenium have been used adding dramatically longer life to the reed switch. However， whether one is plating or sputtering the hard metal layer to the ferromagnetic leads， a transition layer is needed to insure that all the metals metallurgically bond to each other. Gold， copper， and tungsten are often used as transition layers.