Mitsubishi Denki Kabushiki Kaisha

Eishi Gofuku

Mitsuyuki Takada

Hayato Takasago

Kohei Adachi

Atsushi Endo

Yoshiyuki Morihiro

Toshio Tobita

Masanobu Kohara

Masaaki Nakano

Akio Gotoh

Akihiro Miura

Akira Ishizu

Kunifumi Nakanishi

Mitsumasa Mori

Hirofumi Ohuchida

Hirofumi Ouchida

Toshio Ohnawa

Mutsuhiro Shima

Keitarou Yamagishi

Mitsuyuki Tanaka

Eiji Mukai

Shigeru Yachi

Kurumi Miyake

The signal connecting through vias are provided on an edge side of a multilayer printed circuit board along a longitudinal direction thereof, and the signal wiring of the respective layers of the signal wiring layer is inclined with respected to the arrangement of the through vias.

Printed circuit board, printed circuit board used for flat panel display

An apparatus for ON-OFF inspection on a scattering-type liquid crystal display panel is provided which is of decreased size and is capable of easily inspecting the ON-OFF states of the liquid crystal display panel by assuring enhanced visuality of an image displayed for inspection. The inspection apparatus includes: support means for supporting the liquid crystal display panel; signal applying means for applying an electric signal to a pixel of the liquid crystal display panel; illumination means for illuminating the liquid crystal display panel, the illumination means comprising a flat photoconductive member and a light source mounted on a side wall of the photoconductive member; a light-absorptive layer disposed on one side of the photoconductive member with a gap therebetween; and means for making the other side of the photoconductive member come into close contact with the liquid crystal display panel.

Apparatus for inspecting on-off states of a scattering-type liquid

A method for separating bonded substrates which are prepared by facing a plurality of substrates and bonding the substrates by an adhesive features irradiating an energy beam on the bonding portions of the bonded substrates from above one of the bonded substrates to separate the one substrate and the other substrate. The energy beam has the property of being transmitted through the one substrate and of being absorbed into the adhesive.

Method for separating bonded substrates, in particular disassembling a

Disclosed herein is a wiring panel constructed with a substrate; an electrically conductive member laminated on the substrate and principally composed of copper; and an insulating member composed of an organic substance, wherein a very small amount of a non-metallic element is incorporated into the electrically conductive member, and a very small amount of a metal element is incorporated into the insulating member. Also disclosed herein is a method for producing a wiring panel constructed with a substrate, an electrically conductive member provided on the substrate and composed of copper as the principal constituent, and an insulating layer of an organic substance covering the conductive member, which comprises steps of: applying onto the surface of the electrically conductive member a surface-reforming layer which functions to suppress electron transfer through the surface of the electrically conductive member, and thereafter forming the organic insulating layer on the electrically conductive member.

Wiring panel including wiring having a surface-reforming layer and

A circuit board includes a copper plate and an insulating layer of photosensitive polyimide resin formed on the copper plate, the insulating layer leaving an exposed portion of a surface of the copper plate where an LSI is to be mounted. After Au plating is applied to the exposed surface of the copper plate, the LSI is mounted fixedly. A connection pattern having bonding pads is formed by copper plating on the insulating layer. The bonding pads and the LSI are connected by Au wire bonding on the Au plating applied on the bonding pads.

Integrated circuit device having a metal substrate

Circuit board with high heat dissipations characteristic

A process for preparing a combined wiring substrate is carried out by bonding with an adhesive agent the end surfaces of the mutually opposing sides of a plurality of substrates each having a pattern of wiring on its major surface, and by connecting electrically parts of the pattern of wiring which oppose each other by interposing the bonding portion.

Process for preparing a combined wiring substrate

A resistor device includes a thick-film resistor which includes a mixture of electrical conductive material and glass, and which has the electrical conductive material at a surface portion exposed; and electrodes which are deposited on the thick-film resistor to be connected to the exposed electrical conductive material.

Electrode structure for a thick film resistor

A multilayer interconnection circuit board includes insulating layers and conductor wiring layers which are alternately laminated. The uppermost conductor wiring layer is electrically connected to an intermediate conductor wiring layer to a predetermined stage by irradiating laser beams in the direction of lamination of layers so that the conductor wiring layer or layers located above the intermediate conductor wiring layer are successively molten by the laser beams. The surface irradiated by the laser beams of the conductor wiring layer at the predetermined stage is treated to reflect laser energy, and the surface of the conductor wiring layer or layers which are molten by the laser beams is treated so as to be susceptive to absorb the laser beams.

Multilayer interconnection circuit board

An apparatus for restoring a liquid crystal display element having a thin film transistor with a threshold voltage and controlling the brightness of the element includes a display driver for driving the liquid crystal display element, a picture image inspection apparatus for evaluating the brightness of the liquid crystal display element, and a thin film transistor threshold voltage adjusting device including a light source for adjusting the threshold voltage of the thin film transistor by irradiating the thin film transistor with light in response to the brightness evaluation.

Liquid crystal display restoring apparatus

A method is provided for forming a circuit board which comprises a copper plate and an insulating layer of photosensitive polyimide resin formed on the copper plate, the insulating layer leaving an exposed portion of a surface of the copper plate where an LSI is to be mounted. After Au plating is applied to the exposed surface of the copper plate, the LSI is mounted fixedly. A connection pattern having bonding pads is formed by copper plating on the insulating layer. The bonding pads and the LSI are connected by Au wire bonding on the Au plating applied on the bonding pads.

Method of manufacturing a circuit board

A method for fabricating a hybrid IC substrate comprises the steps of: preparing an insulating ceramic substrate having a major surface; baking one or more conductors of a first group formed of high melting point metal or alloy thereof on the major surface; covering the conductors of the first group with a first plated film formed by electroless plating; forming an insulating porous active including a glass component and a small amount of a metal component having a catalytic action for electroless plating on the first plated film; and forming one or more conductors of a second group by electroless plating on the active layer, whereby portions of the active layer sandwiched between the conductors of the first and second groups are rendered conductive.

Method for fabricating hybrid integrated circuit

A method for controlling electric resistance of a compound-type resistant material is disclosed in which a laser beam is irradiated on a compound-type resistant material so as to cause a change in its chemical state whereby the specific resistance inherent to the compound-type resistant material is varied thereby to change its electric resistance in an appropriate manner. If necessary, a portion of the resistant material may be cut away by irradiation of a laser beam so as to further control the resistance value of the resistant material in an increasing sense.

Growing community of inventors

Amagasaki, Japan

Eishi Gofuku