Fuji Electric Co., Ltd.

Norihiro Nashida

Yoko Nakamura

Yoshikazu Takahashi

Tatsuo Nishizawa

Hideyo Nakamura

Tsunehiro Nakajima

Takashi Saito

Yoshito Kinoshita

Tadahiko Sato

Yuichiro Hinata

Youko Nakamura

A semiconductor module includes first and second semiconductor chips including first and second main electrodes, respectively; first and second connection terminals electrically connected to the first and second main electrodes, respectively; and an insulating sheet. The first connection terminal includes a first conductor portion including a first peripheral edge and a first terminal portion extending from the first peripheral edge in plan view, and the second connection terminal includes a second conductor portion including a second peripheral edge. A part of the first conductor portion overlap a part of the second conductor portion in plan view. The insulating sheet includes an insulating portion layered between the first and second conductor portions, and a first protruding portion positioned between a tip portion of the first terminal portion and the second peripheral edge in plan view, the first protruding portion forming an angle relative to a surface of the first terminal portion.

Semiconductor module and manufacturing method therefor

A semiconductor apparatusincludes a circuit substratehaving a circuit pattern layeron an upper principal surface, semiconductor elementsandmounted on the circuit pattern layerof the circuit substrate, a printed substratearranged apart from the circuit substrateon the upper principal surface side of the circuit substrate, a housingmold-sealing the upper principal surface side of the circuit substrate, and a blockprovided sandwiching at least part of the housingand being opposite to the circuit substrate, the block having a linear expansion coefficient smaller than that of the housing

Semiconductor apparatus and manufacturing method of semiconductor apparatus

A semiconductor device manufacturing method, sequentially includes a semiconductor element preparation step of preparing a first semiconductor element on which is formed a plurality of metal electrodes, a step of covering a surface of the first semiconductor element on which the metal electrode is not formed with a first insulating member, and a step of forming a second metal layer that conductively connects the metal electrode of the first semiconductor element and a first metal layer on an insulated circuit substrate across the second insulating member.

Semiconductor device manufacturing method

A semiconductor device includes a plurality of semiconductor units each including a laminated substrate formed by laminating an insulating board and a circuit board and a semiconductor element joined to the circuit board using a joining material which irreversibly makes a phase transition into a solid-phase state. In addition, the semiconductor device may include a base plate to which each of the plurality of semiconductor units is joined using solder and a connection unit which electrically connects the plurality of semiconductor units in parallel.

Semiconductor device including a connection unit and semiconductor device fabrication method of the same

The semiconductor device includes an insulating substrate including an insulating plate and a circuit plate; a semiconductor chip having a front surface formed with an electrode and a rear surface fixed to the circuit plate; a printed circuit board including a metal layer, and facing the insulating substrate; a conductive bonding material disposed on the electrode; and a conductive post having a leading end portion electrically and mechanically connected to the electrode through the bonding material, a base portion electrically and mechanically connected to the metal layer, and a central portion. In the conductive post, a wetting angle of a surface of the leading end portion with respect to the molten bonding material is less than the wetting angle of a surface of the central portion.

Semiconductor device

The semiconductor device includes an insulating substrate on which is mounted a main circuit part including a semiconductor chip, a printed substrate wherein a conductive connection member connected to the semiconductor chip is disposed on the surface opposing the insulating substrate, a first sealing member that seals so as to enclose the semiconductor chip between the opposing surfaces of the insulating substrate and printed substrate, and a second sealing member that covers the whole excepting a bottom portion of the insulating substrate, the semiconductor device having sealing region regulation rod portions disposed in an outer peripheral portion of a sealing region of the first sealing member and connected between the insulating substrate and printed substrate, wherein the heat resistance temperature of the first sealing member is set to be higher than the heat resistance temperature of the second sealing member.

Semiconductor device including a sealing region

A semiconductor device includes an insulating substrate including an insulating plate and a circuit plate disposed on a main surface of the insulating plate; a semiconductor chip having a front surface provided with an electrode and a rear surface fixed to the circuit plate; a printed circuit board facing the insulating substrate and including a metal layer; a conductive post having one end electrically and mechanically connected to the electrode and another end electrically and mechanically connected to the metal layer; a passive element fixed to the printed circuit board; and a plurality of positioning posts fixed to the printed circuit board to position the passive element.

Provided are a semiconductor device manufacturing method and semiconductor device such that manufacturing can be simplified and the thickness of the semiconductor device can be reduced. The semiconductor device includes an insulated circuit substrate having on one main surface thereof a first metal layer and a second metal layer, a metal plate conductively connected to the first metal layer, a first semiconductor element including on front and rear surfaces thereof a plurality of metal electrodes, a first insulating member disposed on a side surface of the first semiconductor element, a second insulating member disposed on the first insulating member and on the first semiconductor element, and a third metal layer, in which at least one portion thereof is disposed on the second insulating member and which conductively connects the metal electrode of the first semiconductor element and the second metal layer on the insulated circuit substrate.

Semiconductor device and semiconductor device manufacturing method

A semiconductor device includes: a conductive-patterned insulating substrate; conductive blocks fixed to conductive patterns of the conductive-patterned insulating substrate; a semiconductor chip fixed to each conductive block; a printed circuit board that has a conductive post fixed to the semiconductor chip; and a resin. The semiconductor device is configured such that the average volume of a conductive film per unit area of each conductive pattern around a section thereof, to which the corresponding conductive block is fixed, is reduced from the conductive block toward the outside.

A semiconductor device includes an insulating substrate having a circuit plate on a principal surface thereof; a semiconductor element fixed to the circuit plate; an external terminal having one end fixed to the circuit plate; and a printed circuit board facing the principal surface of the insulating substrate, and having a through-hole for passing through the external terminal. A rigidity of a peripheral region of the through-hole is lower than a rigidity of other regions.

Plating pre-processing is carried out before carrying out a plating process on the surface of a conducting section provided on a semiconductor wafer. A first metal film is formed on the surface of the conducting section by NiP alloy plating process. A second metal film is formed on the surface of the first metal film by immersion Ag plating process. The semiconductor wafer is diced and cut into semiconductor chips. A conductive composition containing Ag particles is applied to the surface of the second metal film which is on the front surface of the semiconductor chip. A bonding layer containing Ag particles is formed by sintering the conductive composition through heating. A metal plate is then bonded to the surface of the second metal film via the bonding layer containing Ag particles. The electronic component has high bonding strength, excellent thermal resistance and heat radiation properties.

Electronic component and method of manufacturing electronic component

A semiconductor device including a semiconductor chip, a first electrode pad and second electrode pad included on one surface of the semiconductor chip, a first conductive post joined by a joining material to the first electrode pad, a plurality of second conductive posts joined by a joining material to the second electrode pad, and a printed substrate, disposed opposing the one surface of the semiconductor chip, on which is formed an electrical circuit to which the first conductive post and second conductive posts are connected. The second conductive posts on the side near the first conductive post are arrayed avoiding a short-circuit prevention region at a distance such that the joining material of the first conductive post and the joining material of the second conductive posts do not link.

A first metal film, of which major component is copper, is formed on a surface of a conductive portion which becomes a front surface electrode of a semiconductor element. A second metal film of which major component is silver is formed on a surface of the first metal film. A metal plate, which electrically connects the conductive portion and the other members (e.g. a circuit pattern of an insulated substrate) is bonded with a surface of the second metal film via a bonding layer containing silver particles. The second metal film does not contain nickel which decreases the bonding strength between the second metal film and the bonding layer containing silver particles. With the above configuration, an electronic component having a high bonding strength, excellent heat resistance and radiation performance, and a manufacturing method for the electronic component can be provided.

Electronic component and manufacturing method for electronic component

When a conductive post is bonded to a bonding target member such as a semiconductor chip or an insulating substrate with conductive patterns by using metal nanoparticles, a strong bonding layer can be obtained by forming a bottom surface of the distal end of the conductive post in a concave shape.

Semiconductor device and method for manufacturing same

A semiconductor device includes an insulating substrate with a conductive pattern including an insulating substrate, a conductive pattern formed on a front surface of the insulating substrate, and a rear heat-sink formed on a back surface of the insulating substrate; a semiconductor chip joined on the conductive pattern through joining material, and leading terminals; and a mold resin exposing a surface of the rear heat-sink and end portions of the leading terminals, and sealing a front surface of the insulating substrate with the conductive pattern, a back surface of the insulating substrate with the conductive pattern, the semiconductor chip, the rear heat-sink excluding the exposed surface thereof, and the leading terminals excluding the end portions thereof. Each of side surfaces of the conductive pattern and the rear heat-sink is formed with a recessed groove, and the recessed grooves are filled with the mold resin.

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Nagano, Japan

Norihiro Nashida