MEMS-BASED THREE-AXIS ACCELERATION SENSOR

The present invention relates to a MEMS-based three-axis acceleration sensor and, more specifically, comprises: an x-axis sensor mass sensing an external acceleration inputted in the direction of a first axis parallel to a bottom wafer substrate; a y-axis sensor mass sensing an external acceleration...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KIM, Yong Kook, SONG, Ci Moo, YOUN, Keun Jung, LEE, Do Hyeon
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention relates to a MEMS-based three-axis acceleration sensor and, more specifically, comprises: an x-axis sensor mass sensing an external acceleration inputted in the direction of a first axis parallel to a bottom wafer substrate; a y-axis sensor mass sensing an external acceleration inputted in the direction of a second axis parallel to the bottom wafer substrate and perpendicular to the first axis; and a z-axis sensor mass formed so as to encompass the x-axis sensor mass and the y-axis sensor mass and sensing an external acceleration inputted in the direction of a third axis perpendicular to the bottom wafer substrate, wherein space is saved and accelerations in the three axis directions are respectively measured by sensing the independent movement of each axis sensor mass.