Abstract:
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.
Abstract:
A MEMS structure includes: a substrate; a lower electrode disposed on the substrate; an upper electrode including a movable portion disposed facing and spaced from the lower electrode; and a reinforcing portion disposed in the upper electrode so as to extend along an extending direction of the movable portion, the reinforcing portion being composed of a material having a higher Young's modulus than the upper electrode.
Abstract:
A MEMS device is provided in which, in order to suppress generation of a gas from an inner wall of a space in which a MEMS portion is disposed, the MEMS portion is disposed in a space constituted by at least a silicon nitride film and a silicon film, the silicon film has a first hole, the first hole is filled with a metal film or a metal silicide, and an airtight structure is formed by the metal film or the metal silicide, the silicon nitride film, and the silicon film.
Abstract:
A vibrator device includes: a base; a vibrator disposed in the base; and a lid including a substrate having a light transmitting property and a silicon substrate joined to the substrate and a part of the base surrounding the vibrator.
Abstract:
A vibrator element includes a base portion, a vibrating arm extending from the base portion, a first electrode provided on the vibrating arm, a second electrode provided above the first electrode, a piezoelectric body arranged between the first electrode and the second electrode, and an insulating film arranged between the first electrode and the piezoelectric body, in which the material of the first electrode contains TiN, the material of the insulating film contains SiO2, and the material of the piezoelectric body contains AlN.
Abstract:
A vibration device includes a base substrate made of silicon and having a first surface and a second surface facing away from the first surface, a lid bonded to the base substrate, a vibrator disposed at the first surface of the base substrate and accommodated in a space between the base substrate and the lid, and a thermistor element disposed at the base substrate.
Abstract:
A MEMS structure includes: a substrate; a lower electrode disposed above the substrate; an upper electrode including a movable portion disposed facing and spaced from the lower electrode; and a projection projecting from a surface of the movable portion on a side facing the lower electrode, the projection being composed of a material different from that of the movable portion.