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    • 7. 发明授权
    • Physical quantity sensor having multiple through holes
    • 物理量传感器具有多个通孔
    • US07337670B2
    • 2008-03-04
    • US11649254
    • 2007-01-04
    • Minoru MurataKenichi YokoyamaMakoto Asai
    • Minoru MurataKenichi YokoyamaMakoto Asai
    • G01P15/00
    • G01C19/5719G01P15/125
    • A semiconductor physical quantity sensor includes: a substrate; a semiconductor layer supported on the substrate; a trench disposed in the semiconductor layer; and a movable portion disposed in the semiconductor layer and separated from the substrate by the trench. The movable portion includes a plurality of through-holes, each of which penetrates the semiconductor layer in a thickness direction. The movable portion is capable of displacing on the basis of a physical quantity applied to the movable portion so that the physical quantity is detected by a displacement of the movable portion. The movable portion has a junction disposed among the through-holes. The junction has a trifurcate shape.
    • 半导体物理量传感器包括:基板; 支撑在基板上的半导体层; 设置在所述半导体层中的沟槽; 以及可移动部分,其设置在所述半导体层中并且通过所述沟槽与所述衬底分离。 可动部包括在厚度方向上贯穿半导体层的多个贯通孔。 可移动部分能够基于施加到可移动部分的物理量来移位,使得通过可移动部分的位移来检测物理量。 可动部分具有设置在通孔中的接合部。 交界处有三叉形。