Composite sensor for detecting angular velocity and acceleration

摘要

A composite sensor for detecting angular velocity and acceleration includes an angular velocity detecting element, an acceleration detecting element, an angular velocity signal processing IC, an acceleration signal processing IC, and a housing. The housing is formed of a multilayered circuit board and accommodates the angular velocity detecting element, the acceleration detecting element, the angular velocity signal processing IC, and the acceleration signal processing IC. The housing connects the angular velocity detecting element electrically to the angular velocity signal processing IC, and also connects the acceleration detecting element electrically to the acceleration signal processing IC.

主权项

1. A composite sensor comprising:
a first sensing element; a second sensing element; a first IC configured to process an output signal supplied from the first sensing element; a second IC configured to process an output signal supplied from the second sensing element, and placed over the first IC; and a package having a first electrode, a second electrode, and an inner bottom face, the package accommodating the first sensing element, the second sensing element, the first IC, and the second IC, wherein the first electrode is directly connected to the first IC via a first conductor and the second electrode is directly connected to the second IC via a second conductor, wherein the first electrode and the second electrode are disposed on the package, wherein the second conductor is a metal wire which is separate from the package, and wherein when viewed in a direction parallel to the inner bottom face of the package, a length of an upper side of a sectional shape of the second IC is shorter than a length of an upper side of a sectional shape of the first IC.