Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Shinji Morimoto

Noriaki Yoshida

Katsuya Okamoto

Toyokazu Yoshino

Takashi Noyama

Nobuhisa Watanabe

Kouji Nakashima

Masao Iritani

Masatoshi Yanagawa

Masanori Yasutake

Koji Nakashima

Shogo Matsubara

Shigeki Ogata

Shoichi Shimizu

Satoshi Tanaka

Shinichiro Kaneko

Yoshifumi Nakao

Provided is an FPC, which comprises an insulating layer, wiring layersandlaminated above and under the insulating layer, and a layer connection for connecting the wiring layersandelectrically. The layer connection is constituted to comprise: a conductor press-fit holeof a cone shape extending through the insulating layerand the upper and lower wiring layersandand expanded to the side of one wiring layer; and a conductorfilled and press-fitted without any clearance in the conductor press-fit hole such that it is jointed to the wiring upper layerdeformed into the cone shape of the conductor press-fit hole, and is protruded from the other wiring lower layerto have its surface partially coated and jointed. As a result, the contact area between the wiring layersandand the conductorfilled in the conductor press-fit holecan be enlarged to retain the contact strength between the wiring layersandand the conductorsufficiently thereby to provide a high connection reliability for the layer connection.

Manufacturing method of flexible printed wiring board

A flexible printed wiring board has a configuration which is equipped with a solder resist portion formed by coating through the use of a screen printing method on a region including a component mounting portion of a conductor pattern, and a cover lay film pasted in such a manner that an outer circumference portion of an opening portion overlaps an upper portion of a circumference portion of the solder resist portion. A manufacturing method of a flexible printed wiring board of the invention has a configuration which is equipped with a conductor pattern forming process, a solder resist forming process, and a cover lay film pasting process.

Flexible printed wiring board and manufacturing method thereof

A multi-layered flexible print circuit board comprising an insulating layer, a circuit layer formed on the front and back surfaces of the insulating layer and a hole connecting between the circuit layers via the insulating layer, wherein there is provided an electrically-conductive member having a metal layer formed thereon at least on the surface thereof which is press-fitted into the hole to electrically conduct the circuit layer.

Multi-layered flexible print circuit board and manufacturing method thereof

A carbon dioxide gas sensor for detecting carbon dioxide gas concentration wherein the carbon dioxide gas detection part consists essentially of a carbonate, a carbonate decomposition catalyst and a semiconductor oxide, particularly preferably BaCO3, CeO.sub.2 and CuO mixed in a specific molar ratio. A process for producing the carbon dioxide detection part of a carbon dioxide gas sensor, wherein the raw-materials in the form of acetic acid salts are uniformly dissolved in a solvent, then dried and ground to produce a ceramic material with a small average particle diameter.

Carbon dioxide gas sensor

Electronic parts are mounted onto a substrate. A parts supply device holds a plurality of electronic parts and moves to be positioned at a predetermined parts take-out position. The parts supply device includes a readable and writable memory for storing data indicative of the plurality of electronic parts held therein. A reading device reads the data stored in the readable and writable memory provided in the parts supply device when the parts supply device moves relative to the reading device to the predetermined parts take-out position. The electronic part is extracted from the parts supply device position at the predetermined parts take-out position and mounted on a substrate.

Electronic parts mounting method employing memory equipped parts supply

An apparatus is for mounting electronic parts onto a substrate. The apparatus includes a parts supply device for holding a plurality of electronic parts and for moving to be positioned at a predetermined parts take-out position. The parts supply device includes a readable and writable memory for storing data indicative of the plurality of electronic parts held therein. The apparatus further includes a reading device for reading the data stored in the readable and writable memory provided in the parts supply device when the parts supply device moves relative to the reading device to the predetermined parts take-out position. The electronic part is extracted from the parts supply device position at the predetermined parts take-out position and mounted on a substrate.

Electronic parts mounting apparatus having memory equipped parts supply

A parts supply device includes a mounting device for mounting a unit accommodating electronic parts on a parts mounting machine, a parts feeding device for sequentially feeding the parts held by the unit to a predetermined removing position according to an operation of the machine for removing the parts from the parts supply device, a storing device for storing data as to the number of parts held by the unit, and a calculating device for rewriting the parts number data stored in the storing device according to the operation of the machine for removing the parts from the supply device. A parts supply method includes the steps of reading an identifying mark of the unit and fetching the parts number data of the unit from a data base in a storage area, based on data as to the kind of parts, writing each piece of data obtained above in a storing unit of the supply device, and rewriting the parts number data written in the storing unit according to operation of the machine for removing the parts from the supply device. In a parts managing system, after it is decided whether or not the mark corresponds to the parts identification data, the parts number data is stored in the storing unit in the parts supply device according to decision that the mark corresponds to the identification data, a current number of parts is read in the data base in removing the unit from the supply device and stored in the data base.

Growing community of inventors

Fukuoka, Japan

Shinji Morimoto