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    • 2. 发明专利
    • Mems sensors
    • JP5314979B2
    • 2013-10-16
    • JP2008242026
    • 2008-09-22
    • アルプス電気株式会社
    • 清 佐藤勝也 菊入潔 小林宜隆 宇都
    • G01P15/125G01P15/08H01L29/84
    • PROBLEM TO BE SOLVED: To provide a MEMS sensor having a thin shape as a whole, and a high sealing degree of the inside, capable of securing an operation margin of a movable electrode portion. SOLUTION: A functional layer 10 has a fixed electrode portion, the movable electrode portion and a frame body layer 25 separated from a silicon wafer. A conductive supporting portion 12 of the fixed electrode portion, a conductive supporting portion 17 of the movable electrode portion, the frame body part 25, and the first substrate 1 are fixed by the first insulating layers 3a, 3b, 3c. In the functional layer 10, a surface on the Z2 side is retreated as long as a distance T2 on a portion excluding the conductive supporting portions 12, 17 and the frame body layer 25. The conductive supporting portions 12, 17 and the frame body layer 25 are bonded to the surface 101 of an IC package 100 by eutectic bonding or diffusion bonding of a metal. In addition, a metal seal layer 45 is formed by eutectic bonding or diffusion bonding. A movable margin of a movable part such as a weight part 20 of the movable electrode portion can be secured by the retreating distance T2. COPYRIGHT: (C)2010,JPO&INPIT