Nec Electronics Corporation

Nec Corporation

Renesas Electronics Corporation

J-devices Corporation

Ngk Spark Plug Company, Limited

Hirokazu Honda

Katsumi Kikuchi

Shintaro Yamamichi

Hideya Murai

Takuo Funaya

Tadanori Shimoto

Keiichiro Kata

Kazuhiro Baba

Shinji Watanabe

Shinichi Miyazaki

Kenta Ogawa

Takehiko Maeda

Jun Tsukano

Toshihiro Iwasaki

Shingo Nakamura

Hiroaki Matsubara

Tomoshige Chikai

Kiminori Ishido

Shotaro Sakumoto

Takeshi Miyakoshi

Sumikazu Hosoyamada

Yoshikazu Kumagaya

Takashi Nakamura

Kentaro Mori

Satoshi Hirano

Rokuro Kambe

Manabu Okamoto

Shinya Miyamoto

Michiaki Tamakawa

Kouji Matsui

Hiroshi Demachi

Akira Matsumoto

Norio Okada

Tomohiro Nishiyama

Koji Soejima

Junichi Arita

Masaki Watanabe

Michitaka Kimura

Satoshi Matsui

Michihiko Ichinose

Masashi Nishimoto

Tsuyoshi Eda

Tomoko Takizawa

Syuuichi Kariyazaki

Jun Ueno

Yoshitaka Kyougoku

Kenji Ooyachi

Keiichirou Kata

Koichiro Niwa

A compact electronic device as a constituent element of a wireless communication system using a sensor. A first feature of the device is that a first semiconductor chip is bare-chip-mounted over a front surface of a first wiring board in the form of a chip and a second semiconductor chip is bare-chip-mounted over a second wiring board in the form of a chip. A second feature is that a wireless communication unit and a data processing unit which configure a module are separately mounted. A third feature is that the first and second wiring boards are stacked in the board thickness direction to make up the module (electronic device).

Electronic device

A stacked semiconductor package includes a first semiconductor package including a first circuit board and a first semiconductor device mounted on the first circuit board; a second semiconductor package including a second circuit board and a second semiconductor device mounted on the second circuit board, the second semiconductor package being stacked on the first semiconductor package; and a heat transfer member provided on the first semiconductor device and a part of the first circuit board, the part being around the first semiconductor device.

Semiconductor package

A manufacturing method for a semiconductor device of the present invention includes: preparing a semiconductor wafer including an electrode formed therein; electrically connecting a first semiconductor element formed in a semiconductor chip and the electrode formed in the semiconductor wafer; filling a gap between the semiconductor wafer and the semiconductor chip with a first insulating resin layer; forming a second insulating resin layer on the semiconductor wafer; grinding the second insulating resin layer and the semiconductor chip until a thickness of the semiconductor chip reaches a predetermined thickness; forming a first insulating layer on the second insulating resin layer and the semiconductor chip; forming a line on the first insulating layer connected with a conductive material filled an opening in the first insulating layer and the second insulating resin layer to expose the electrode; and grinding the semiconductor wafer until a thickness of the semiconductor wafer reaches a predetermined thickness.

Manufacturing method for semiconductor device

A semiconductor package includes a support substrate arranged with a first aperture reaching a semiconductor device on a rear side, the semiconductor device is bonded via an adhesive to a surface of the support substrate, an insulating layer covering the semiconductor device, and wiring for connecting the semiconductor device and an external terminal through the insulating layer. The adhesive may form a part of the first aperture. In addition, a heat dissipation part may be arranged in the first aperture and a metal material may be filled in the first aperture.

Heat sink in the aperture of substrate

This invention prevents a substrate of a semiconductor chip that has through-silicon vias collectively arranged in a specific area thereof from becoming cracked. When a direction in parallel with a long side of a first semiconductor chip is defined as a row direction and a direction perpendicular to the long side of the first semiconductor chip is defined as a column direction, each one of the first through-silicon vias is arranged on any one of grid points arranged in m rows and n columns (m&#x3e;n). In addition, as viewed in a cross section taken along a short side of the first semiconductor chip, the center of a through-silicon via area, which is defined by coupling the outermost grid points arranged in m rows and n columns, is off center of the short side of the first semiconductor chip in a first direction.

Semiconductor device

A wiring board has an insulating layer, a plurality of wiring layers formed in such a way as to be insulated from each other by the insulating layer, and a plurality of vias formed in the insulating layer to connect the wiring layers. Of the wiring layers, a surface wiring layer formed in one surface of the insulating layer include a first metal film exposed from the one surface and a second metal film embedded in the insulating layer and stacked on the first metal film. Edges of the first metal film project from edges of the second metal film in the direction in which the second metal film spreads. By designing the shape of the wiring layers embedded in the insulating layer in this manner, it is possible to obtain a highly reliable wiring board that can be effectively prevented from side etching in the manufacturing process and can adapt to miniaturization and highly dense packaging of wires.

Method of manufacturing a wiring board

A semiconductor device includes: a semiconductor chip mounted on a mounting substrate; a first resin filling a gap between the chip and the substrate; a frame-shaped stiffener surrounding the chip; a first adhesive for bonding the stiffener to the substrate; a lid for covering the stiffener and an area surrounded by the stiffener; and a second resin filling a space between the stiffener and the chip. A thermal expansion coefficient of the second resin is smaller than that of the first resin. The first resin includes an underfill part filling a gap between the chip and the substrate and a fillet part extended from the chip region.

Warp-suppressed semiconductor device

A semiconductor device includes a semiconductor chip, wiring formed thereon, a first insulating film formed on the wiring, provided with a first opening, a pad electrode formed so as to be in contact with the wiring, a second insulating film formed on the pad electrode film, provided with a second opening, and a flip chip bump formed so as to be in contact with the pad electrode film. In this case, the second insulating film exists between the flip chip bump and the pad electrode film, in a region directly underneath the outer edge of the flip chip bump, as seen in a plan view, and the outer edge of the flip chip bump is formed in a region inside the outer edge of the pad electrode film.

A wiring substrate for mounting semiconductors is provided with an insulation film, wires formed in the insulation film, and a plurality of electrode pads that electrically connect to the wires through vias. The electrode pads are provided to have their surfaces exposed to both of the front surface and the rear surface of the insulation film, and at least a part of the side surface of the electrode pads is buried in the insulation film. The insulation film is formed by forming electrode pads on the respective two metallic plates, thereafter, laminating an insulation layer and wires on the respective metallic plates to cover the electrode pad, and adhering the insulation layers to each other for integration, and thereafter, removing the metallic plates.

Wiring substrate for mounting semiconductors, method of manufacturing the same, and semiconductor package

In accordance with the present invention, during formation of the interconnection board, the interconnection board remains securely fixed to a high rigidity plate being higher in rigidity than the interconnection board for suppressing the interconnection board from being bent.

Multilayer interconnection board, semiconductor device having the same, and method of forming the same as well as method of mounting the semicondutor chip on the interconnection board

Wiring board, semiconductor device using wiring board and their manufacturing methods

A wiring board in which lower-layer wiring composed of a wiring body and an etching barrier layer is formed in a concave portion formed on one face of a board-insulating film, upper-layer wiring is formed on the other face of the board-insulating film, and the upper-layer wiring and the wiring body of the lower-layer wiring are connected to each other through a via hole formed in the board-insulating film. The via hole is barrel-shaped, bell-shaped, or bellows-shaped.

Wiring board, method for manufacturing same, and semiconductor package

Growing community of inventors

Kanagawa, Japan

Hirokazu Honda