摘要:
Disclosed is a micromachine as a high-frequency filter which includes a high Q value and is suitable for higher frequency bands. The micromachine (1) includes an output electrode (7) formed on a substrate (5), an interlayer insulating film (9) which covers the substrate (5) and includes an opening (9a) whose bottom is the output electrode (7), and a beltlike resonator electrode (11) so formed on the interlayer insulating film (9) as to traverse above the space (A) in the opening (9a), with the resonator electrode (11) being concave toward the opening (9a) along the side wall of the opening (9a).
摘要:
Disclosed is a micromachine as a high-frequency filter which includes a high Q value and is suitable for higher frequency bands. The micromachine (1) includes an output electrode (7) formed on a substrate (5), an interlayer insulating film (9) which covers the substrate (5) and includes an opening (9a) whose bottom is the output electrode (7), and a beltlike resonator electrode (11) so formed on the interlayer insulating film (9) as to traverse above the space (A) in the opening (9a), with the resonator electrode (11) being concave toward the opening (9a) along the side wall of the opening (9a).
摘要:
A method for manufacturing a micromachine is provided which can remove a sacrifice layer and can perform sealing without using a specific packaging technique. In a method for manufacturing a micromachine (1) including an oscillator (4), a step of forming a sacrifice layer around a movable portion of the oscillator (4); a step of covering a sacrifice layer with an overcoat film (8), followed by the formation of a penetrating hole (10) reaching the sacrifice layer in the overcoat layer (8); a step of performing sacrifice-layer etching for removing the sacrifice layer using the penetrating hole (10) in order to form a space around the movable portion; and a step of performing a film-formation treatment at a reduced pressure following the sacrifice-layer etching so as to seal the penetrating hole (10).
摘要:
A method for manufacturing a micromachine is provided which can remove a sacrifice layer and can perform sealing without using a specific packaging technique. In a method for manufacturing a micromachine (1) including an oscillator (4), a step of forming a sacrifice layer around a movable portion of the oscillator (4); a step of covering a sacrifice layer with an overcoat film (8), followed by the formation of a penetrating hole (10) reaching the sacrifice layer in the overcoat layer (8); a step of performing sacrifice-layer etching for removing the sacrifice layer using the penetrating hole (10) in order to form a space around the movable portion; and a step of performing a film-formation treatment at a reduced pressure following the sacrifice-layer etching so as to seal the penetrating hole (10).
摘要:
A microresonator includes a beam-type resonator element in which a beam that is an oscillating portion of the resonator element has a high-resistance portion or an insulating portion.
摘要:
A microresonator includes a beam-type resonator element in which a beam that is an oscillating portion of the resonator element has a high-resistance portion or an insulating portion.
摘要:
A high frequency device including an electrostatic type vibrator, a pad, and a circuit. The electrostatic type vibrator is operable via a DC bias voltage. The pad is configured to supply the DC bias voltage. The circuit is positioned electrically between the pad and the vibrator. The circuit is configured to stabilize the DC bias voltage. The circuit and the high frequency signal device are on a common substrate.
摘要:
A functional device in which the functional portion is not influenced by events in film forming, and thereby the reliability of the device can be improved is provided. The functional device includes a substrate, one or a plurality of functional portions formed on a surface of the substrate, a sealing layer that forms a space around the functional portion, and has one or a plurality of apertures sealed with a filling material, and one or a plurality of walls formed between the functional portion and the aperture without separating the space.
摘要:
A filter device configured with a plurality of micro-resonators and having a wide specific bandwidth. The filter device is configured as having a plurality of beam-structured, micro-resonators (15), (16), (17), (18) electrically connected in a lattice-forming manner between two input terminals (11), (12) for balanced input and two output terminals (13), (14) for balanced output, each of the plurality of micro-resonators (15), (16), (17), (18) being composed of a resonator group including a plurality of resonators differed in resonance frequency.
摘要:
An electro mechanical device including: a main body of an electro mechanical device having a lower electrode and a movable member; an overcoat film sealing the main body of the electro mechanical device by maintaining a space, wherein a support post is provided between the overcoat film and the movable member.