MEMS element, sealing structure, electronic device, electronic apparatus, and vehicle
A MEMS element includes a surface silicon layer on which an element is formed and on which a first electrode and a second electrode as element electrodes and an electrode pad connected to the first electrode and the second electrode are disposed, and in which a first wiring through-hole is disposed at a position overlapping with the electrode pad of the surface silicon layer and a wiring electrode electrically connected to the electrode pad is disposed in the first wiring through-hole, in plan view.
1. A Micro Electro Mechanical System (MEMS) element comprising:
an element substrate on which an element is formed and an element electrode and an electrode pad connected to the element electrode are disposed;
a support substrate supporting the element substrate; and
a lid which is connected to the element substrate and forms an internal space with the element substrate and the support substrate, wherein:
a first wiring through-hole is disposed at a position overlapping with the electrode pad of the element substrate in plan view,
a second wiring through-hole communicating with the first wiring through-hole is disposed in the support substrate,
a wiring electrode electrically connected to electrode pad is disposed in the first wiring through-hole,
a first sealing hole that seals the internal space is disposed in the element substrate, and
a second sealing hole communicating with the first sealing hole is provided in the support substrate.
2. The MEMS element according to claim 1 , wherein
an element adjustment layer is disposed between the element and the element electrode, and
the element adjustment layer is also disposed between the electrode pad and the element substrate.
3. The MEMS element according to claim 1 , wherein a metal layer comprised of the same material as the wiring electrode seals the first sealing hole.
4. The MEMS element according to claim 1 , wherein the wiring electrode is a sputtered layer and has a plating layer stacked on the sputtered layer.