Murata Manufacturing Co., Ltd.

Murata Manufacturingco., Ltd.

Murata Mfg. Co., Ltd.

Hiroaki Kaida

Jiro Inoue

Takashi Hase

Toshio Nishimura

Hiroyuki Yamamoto

Masaru Asai

Katsumi Fujimoto

Hiroshi Nakatani

Akihiro Mitani

Mitsuhiro Yamada

Shigeaki Sugimura

Kazuyuki Noto

Eitaro Kameda

Keisuke Takeyama

Masatoshi Kajiwara

Katsumi Sakai

Toru Kidu

Takeshi Kamada

Hitoshi Sakaguchi

Daisuke Nakamura

Keiichi Kami

Toru Kizu

Toru Nagae

Satoshi Ishino

Keiichi Umeda

Michinobu Maesaka

Mamoru Ogawa

Kenji Kubota

Yoshifumi Saito

Hiroshi Yamada

Takehiko Kishi

Kentaro Yoshii

Yuichiro Nagamine

Kazuhiro Mimura

Manabu Ibayashi

Katsuma Moroishi

Takuya Kono

Tsuyoshi Saito

Akira Ando

Masahiko Kimura

Chikahiro Horiguchi

Masaya Wajima

Takuya Sawada

Makoto Irie

Shungo Kanai

Hiroshi Ibaragi

Yoshihiro Ikeda

Tsuguji Kambayashi

Motoyoshi Sakai

Ryuichi Kawai

Hidekazu Oishibashi

Hiroshi Kumano

Seita Takahashi

Hiroyuki Araya

Yuuki Ooi

Hayato Sasaki

Takashi Saeki

Kenyo Makino

Takuya Yamazaki

Susumu Okazaki

Toshikatsu Ohitsu

Tomohiro Oya

The vibration substrate having a main surface extending parallel to a first direction and a second direction that are orthogonal to each other, and that includes a main body region having a vibrating portion at least in a part thereof and at least one holding region arranged side by side with the main body region along the first direction. The at least one holding region including a holding portion and a beam portion connecting the holding portion and the main body region. The beam portion includes a first arm portion extending from the holding portion along the first direction, a second arm portion extending along the second direction from an end portion of the first arm portion on a side thereof opposite to the holding portion, and a connection portion connecting the second arm portion and the main body region.

Vibration substrate having a pair of holding portions and a beam portion connecting the holding portions, vibrator, and vibrator unit

A quartz crystal resonator unit includes a quartz crystal resonator that includes a quartz crystal blank. A pair of excitation electrodes are disposed on opposed main surfaces of the quartz crystal blank so as to face each other. A pair of connection electrodes are electrically connected to respective ones of the pair of excitation electrodes. A base member has a surface on which the quartz crystal resonator is mounted. A lid member is joined to the surface of the base member via a joining member. The quartz crystal resonator is accommodated in an inner space defined by the lid member and the base member on the surface of the base member. Parts of the joining member that cover protruding portions are in contact with a side wall of the lid member so as to restrain movement of the lid member when seen in a plan view in a direction normal to the surface of the base member.

Quartz crystal resonator unit and method of manufacturing the same

A wavelength conversion device that includes a plurality of crystal layers adjacent to one another such that crystal-axis orientations thereof are alternately arranged, the plurality of crystal layers each including a first-thickness portion having a first thickness and a second-thickness portion having a second thickness smaller than the first thickness; and an adhesive layer in at least part of a gap between adjacent second-thickness portions of the plurality of crystal layers and with which the plurality of crystal layers are bonded to one another.

Wavelength conversion device and method of manufacturing wavelength conversion device

A crystal vibration element that includes a crystal piece that has a prescribed crystal orientation, and a first direction and a second direction in a plan view thereof; and excitation electrodes that are respectively provided on front and rear surfaces of the crystal piece in order to excite a thickness shear vibration in the crystal piece upon application of an alternating electric field. A vibration distribution of the crystal piece has a vibration region that extends in a band-like shape in the second direction of the crystal piece and non-vibration regions that are adjacent to opposed sides of the vibration region in the first direction of the crystal piece.

Crystal vibration element, and crystal vibrator equipped with crystal vibration element

A quartz crystal resonator unit includes a quartz crystal substrate, first and second excitation electrodes, first and second conductive sealing members, and first and second exterior members. The first excitation electrode is disposed on a first main surface of the substrate with the first conductive sealing member surrounding the first excitation electrode. Similarly, the second excitation electrode is disposed on a second main surface of the substrate with the second conductive sealing surrounding the second excitation electrode. The first and second exterior members are bonded to the quartz crystal substrate with the first and second conductive sealing member respectively interposed therebetween and to cover the first and excitation electrodes, respectively. In a plan view of the first main surface of the substrate, at least part of the first conductive sealing member is located outward of the second conductive sealing member.

Quartz crystal resonator unit

A quartz crystal resonator that includes an AT-cut quartz crystal blank that is plate-shaped and that is rectangular when viewed in a direction normal to a main surface thereof; and a first outer electrode and a second outer electrode disposed on the main surface and arranged in a short-side direction of the main surface. Long sides of the main surface are substantially parallel to a Z' axis of the quartz crystal blank. The short sides of the main surface are substantially parallel to an X axis of the quartz crystal blank. A frequency of a main vibration of the quartz crystal blank is in a range of 20.0 MHz to 60.0 MHz, and 0.050&#x2264;P&#x2264;&#x2212;0.0047&#xd7;F+1.728, where P (mm) is a distance between the first outer electrode and the second outer electrode in the short-side direction, and F (MHz) is the frequency of the main vibration.

Quartz crystal resonator and quartz crystal resonator unit

A piezoelectric resonator unit that includes a base, a piezoelectric resonator mounted on the base member, and a cover that is bonded to the base and that collectively forms an inner space that accommodates the piezoelectric resonator. The cover includes a top surface that faces the base with the piezoelectric resonator interposed therebetween, and a side wall that extends in a direction that intersects a main surface of the top surface. The piezoelectric resonator unit is designed so that the thickness of the top surface is larger than the thickness of the side wall.

Piezoelectric resonator unit, module component, and manufacturing method for same

A quartz crystal resonator unit including a quartz crystal resonator having a quartz crystal blank, a frame surrounding an outer periphery of the quartz crystal blank, and coupling members connecting the frame to the quartz crystal blank. Moreover, a lid member and a base member are attached to the frame and seal the resonator. One or more outer electrodes is formed over end surfaces of the frame, the lid member, and the base member on a side where the coupling members are coupled. The one or more outer electrodes has a machinery quality factor smaller than that of the frame.

A piezoelectric vibration device that includes a piezoelectric vibrator having excitation electrodes formed thereon; a base having the piezoelectric vibrator on a first surface thereof; outer electrodes formed to continuously extend from the first surface of the base through a side face of the base to a second surface of the base opposite the first surface; and a lid having a recess opening that faces the first surface of the base, the lid being joined to the base to hermetically seal the piezoelectric vibrator in an internal space defined by the recess and the base. An edge portion of a corresponding one of the outer electrodes, formed by the first surface and the side face of the base, is at least partly covered by a covering member having insulating properties.

Piezoelectric vibration device and method for manufacturing the same

A method of manufacturing a piezoelectric resonator unit that includes mounting a piezoelectric resonator on a base member using a conductive adhesive, keeping the piezoelectric resonator in an environment having a temperature and a humidity higher than those of a surrounding region for a predetermined time, performing frequency adjustment of the piezoelectric resonator by etching using an ion beam, and joining a lid member to the base member using a joining material such that the piezoelectric resonator is hermetically sealed between the lid member and the base member.

Method of manufacturing piezoelectric resonator unit

A piezoelectric vibration component that includes a substrate having a principal surface and a side face, a piezoelectric vibrator, a lid, and an adhesive layer that hermetically seals the piezoelectric vibrator in a space between the lid and the principal surface. The adhesive layer extends from the principal surface to at least a portion of the side face of the substrate.

Piezoelectric vibration component and method for manufacturing the same

A piezoelectric oscillation device includes a piezoelectric vibration element, a heating element that heats the piezoelectric vibration element, an electronic component that is electrically connected to the piezoelectric vibration element, a substrate on which the piezoelectric vibrator, the heating element, and the electronic component are mounted, and a base member to which the substrate is attached with a prescribed spacing therebetween via a substrate holding member. The substrate holding member includes a conductive part. The conductive part has a lower thermal conductivity than metal.

Piezoelectric oscillation device and manufacturing method therefor

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Nagaokakyo, Japan

Hiroaki Kaida