Murata Manufacturing Co., Ltd.

Murata Mfg. Co., Ltd.

Choichiro Fujii

Takashi Iwamoto

Michinobu Maesaka

Makoto Irie

Motoyuki Okeshi

Takashi Hashimoto

Hidemasa Iwami

Hiroyuki Kawakami

Ken Taniguchi

Masaru Takahashi

Kazuo Hattori

Isamu Fujimoto

Hirobumi Adachi

Tetsuya Oda

Hidetoshi Iwatani

Masato Fujino

Etsuo Nishikawa

Masakazu Kazama

Shinji Matsumoto

An electronic component containing substrate includes a substrate, a first electronic component mounted on a main surface of the substrate, and an embedment layer provided on the main surface of the substrate and embedding the first electronic component. The first electronic component is a multilayer ceramic capacitor including a ceramic multilayer body including a layered portion and a first side portion and a second side portion between which the layered portion lies and having two end surfaces opposed to each other and side surfaces connecting the two end surfaces to each other. The first side portion is located between the layered portion and the main surface of the substrate in a direction of thickness which is a direction perpendicular to the main surface of the substrate. The embedment layer is smaller in elastic modulus than the substrate.

Electronic component containing substrate

A built-in-electronic-component substrate includes a core substrate, an electronic component mounted on one main surface of the core substrate via a joining member, and a resin layer including the electronic component embedded therein. The electronic component is a multilayer ceramic capacitor including a ceramic multilayer body, and a first outer electrode including an end surface portion and a second outer electrode including an end surface portion provided on end surfaces of the ceramic multilayer body. A first gap is provided between the resin layer and the end surface portion of the first outer electrode and the joining member and a second gap is provided between the resin layer and the end surface portion of the second outer electrode and the joining member.

Built-in-electronic-component substrate and manufacturing method therefor

In a method of forming a thick-film wiring on a substrate, photosensitive-electroconductive paste is filled into a pattern groove formed on the surface of a light-transmitting intaglio plate. The pattern groove corresponds to a desired thick-film wiring pattern. The photosensitive-electroconductive paste filled in the pattern groove are irradiated with light-rays from the front and back sides of the intaglio plate to cause the paste to harden until the overall peripheral surface of the electroconductive paste has a predetermined hardness. The electroconductive paste hardened in the pattern grooves of the intaglio plate is transferred to an intermediate piece. Then, the electroconductive paste is transferred from the intermediate piece to a substrate. Thereafter, the electroconductive paste is fired, whereby a thick-film wiring is formed on the substrate.

Method of forming thick-film wiring and method of producing laminated electronic component

An electronic component has a substantially reduced size and is adapted to be produced at low costs without variation in superior quality of the component because of the ease of achieving electrical connection between a piezoelectric element and a electrode pattern on a substrate supporting the piezoelectric element. The piezoelectric element has a lower electrode formed on the lower surface thereof and an upper electrode formed on the upper surface thereof. The piezoelectric element is fixed to the substrate such that the lower electrode is bonded to an electrode provided on the substrate by a conductive adhesive. A conductive wire is fixed to the upper electrode of the piezoelectric element. A metallic cap is bonded to the substrate so as to cover and seal the piezoelectric element on the substrate. The cap is contacted at its inner surface by the wire, whereby an electrical connection is achieved between the cap and the upper electrode of the piezoelectric element. Input and output lead terminals are connected to the electrodes on the substrate, while a grounding lead terminal is connected to the cap.

Method of making an electronic component

Method of producing electronic component

Electronic component and method of producing same

A coil contains a winding part and a core. The winding part is formed of plural laminated sheets each having a winding pattern. Plural winding patterns are formed on at least one sheet. Each of the winding patterns has a different number of turns, and the winding patterns are formed around the core so as to be coaxial in the same winding direction. The winding patterns formed on the other sheets are connected via a through-hole, and an end of the winding pattern is connected to an input/output portion formed outside of the sheet.

Coil

Growing community of inventors

Nagaokakyo, Japan

Choichiro Fujii