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    • 4. 发明申请
    • SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF
    • 半导体器件及其制造方法
    • US20120032304A1
    • 2012-02-09
    • US13275383
    • 2011-10-18
    • Mayumi YamaguchiKonami Izumi
    • Mayumi YamaguchiKonami Izumi
    • H01L29/93
    • H01L27/1203B81C1/00547B81C2201/0135H01L21/84H01L27/016H01L27/12H01L27/13
    • It is an object of the present invention to manufacture a micromachine having a plurality of structural bodies with different functions and to shorten the time required for sacrifice layer etching in a process of manufacturing the micromachine. Another object of the present invention is to prevent a structural layer from being attached to a substrate after the sacrifice layer etching. In other words, an object of the present invention is to provide an inexpensive and high-value-added micromachine by improving throughput and yield. The sacrifice layer etching is conducted in multiple steps. In the multiple steps of the sacrifice layer etching, a part of the sacrifice layer that does not overlap with the structural layer is removed by the earlier sacrifice layer etching and a part of the sacrifice layer that is under the structural layer is removed by the later sacrifice layer etching.
    • 本发明的目的是制造具有多个具有不同功能的结构体的微型机械,并且缩短在制造微机械过程中牺牲层蚀刻所需的时间。 本发明的另一个目的是在牺牲层蚀刻之后防止结构层附着到基底上。 换句话说,本发明的目的是通过提高生产量和产量来提供廉价和高附加值的微机械。 牺牲层蚀刻以多个步骤进行。 在牺牲层蚀刻的多个步骤中,通过较早的牺牲层蚀刻去除与结构层不重叠的牺牲层的一部分,并且在结构层之下的部分牺牲层被后面的部分去除 牺牲层蚀刻。