Citizen Watch Company, Ltd.

Yoshio Iinuma

Tetuya Yasuda

Tomomi Murakami

Masaru Yoshida

Yoshihiro Ishida

Shingo Ichikawa

Satoshi Kimura

Masateru Yoshida

Yuzo Maekawa

Tetsuya Yasuda

Katsuo Nishimura

Minoru Natori

Masaaki Matsunaga

Shigeyuki Takahashi

Eiichi Tajima

Toshikiyo Kato

Teruaki Takahashi

Toshihide Hirohara

Naotake Ando

A device for packaging many memory IC chips having a plurality of common connecting terminals on a main circuit board. A plurality of IC chips are packaged on an auxiliary board to make an IC chip unit, and a plurality of IC chip units are aligned on the main circuit board. The connections between unit-connecting terminals provided on the respective IC chip units and the main circuit board are made by means of wiring patterns on the main circuit board.

IC package

An IC-packaged device comprises a lower plate which has wiring patterns at least on an upper surface; an upper plate which has upper surface wiring patterns and at least an opening hole and are superimposed on the lower plate when used; and a plurality of IC chips which has a lot of connecting terminal groups mounted on the upper plate. In this structure, some of the connecting terminal groups of the plurality of IC chips are wire-bonded to the wiring patterns on the upper plate, while the other of the connecting terminal groups of the plurality of IC chips pass through the opening hole in the upper plate and are wire-bonded directly to the wiring patterns on the lower plate.

IC-packaged device

A connecting structure for a liquid crystal cell having a pair of glasses including a substrate glass, a liquid crystal material between the glasses, and a number of terminals provided on the substrate glass and electrically connected with display dots formed by the liquid crystal material. An LSI used in the display device has a plurality of terminals corresponding to the terminals on the substrate glass. The LSI is held by a holding plate in a predetermined position and the terminals of the LSI are pressed against the terminals on the substrate glass.

Connecting structure for a display device

An IC chip is connected to terminal portions of conductive films on a lower substrate of a liquid crystal display panel by face down bonding. The IC chip and conductive films are coated with resin to protect the IC chip and films.

Liquid crystal display device having a resin-coated IC chip

A timepiece circuit device including an upper frame, a lower frame and a print base board having a conductive pattern for mounting and electrically connecting a semiconductor device. At least one of said upper and lower frames is provided with a connecting portion electrically connecting electronic parts and a recess in which said electronic part is fitted and said semiconductor device is received. Said upper frame, said circuit base board and said lower frame are overlapped with each other thereby providing a circuit device having semiconductor devices capable of being miniaturized for a timepiece.

Timepiece circuit device

A liquid crystal display wrist watch is disclosed which comprises a supporting frame secured to a wrist watch substrate. The frame has two perpendicularly crossing supporting surfaces which cooperate with two corresponding reference sides of a liquid crystal cell to determine the position of exterior electrodes of the liquid crystal cell and segment electrodes of an electronic circuit. A holding frame plate is used for detachably urging the liquid crystal against the suppporting frame. A boundary plate and color filter are each sandwiched between a movement and a protective glass cover. A portion is provided for determining the position of the holding frame plate, with respect to either to the movement or an outer case.

Liquid crystal display wrist watch

A watch body for an electronic watch containing an integrated circuit chip and a printed circuit board is disclosed. The watch body comprises an upper case and a bottom cover which are selectively interconnected one with the other. A lead package frame is sandwiched between the upper case and the bottom cover and contains a plurality of electrical leads disposed thereon and electrically coupled to the integrated circuit chip. The lead frame has first and second sides with the first side having a first cavity with the integrated circuit chip matingly engaged therein. The plurality of leads are disposed on the first side of the lead frame so as to surround this first cavity down the circuit chip. The second side of the lead frame has a second cavity with the printed circuit board disposed therein. By the use of the watch body of the instant invention, a significantly smaller number of components, a simpler manufacturing process is achieved.

Electronic timepiece substratum

A disk-shaped substrate supports on its front side a liquid-crystal cell bracketed by an upper and a lower glass plate and on its rear side an electric battery along with circuit elements for controlling the selective energization of various electrode leads of the cell to generate different digital symbols, the substrate being sandwiched between two flexible printed sheets whose conductors establish the necessary connections between the battery and the electrode leads of the cell. The connection between corresponding conductors of the two printed sheets is established by metal pins passing insulatedly through apertures in the substrate. A crystal oscillator included in the control circuit is enclosed in a sealed envelope which is received in a trough of the rear substrate face offset from a depression for the battery, the front substrate face being provided with a recess accommodating a chip connected in the wiring pattern of the printed sheet overlying that front face whose extremities are flexed around the lower glass plate to establish contact with conductor terminals carried on projecting marginal portions of the upper glass plate.

Electronic timepiece with electro-optical display

An integrated circuit block assembly is provided with a base plate, a printed base carrying thereon a connecting and wiring pattern and a number of electrodes for connection with those on an integrated circuit chip, fine metallic wires, each being connected to one of the electrodes on said chip with one of said connecting electrodes on said printed base, an insulated protector for protecting said chip and said wires. In this assembly, the chip carries a large scale integrated circuit and the printed base is a flexible printed circuit sheet having a connecting pattern connected to a display means or other functional element.

Mounting arrangement for an integrated circuit unit in an electronic

A liquid crystal display electronic watch comprises a metal substrate, whose upside and downside surfaces are insulated by a flexible print sheet. A liquid crystal cell and a time keeping decoder drive circuit are arranged on the upside of the substrate and other circuit elements are arranged beneath the downside thereof. The exteriorly operating parts are arranged around the periphery of the substrate. All of the electrical and mechanical operating members are arranged in a plane with respect to the substrate and so electrically connected and mechanically interlocked that date and/or week day are displayed with the least possible members. The watch is thin, small, simple in construction and reliable in operation.

Liquid crystal display electronic watch

A holder unit of an electronic watch for holding a battery for the latter in position within the interior space of the casing of the watch, in which a holding member is attached to the watch casing, main portion of the holding member being arranged in a hollow cylinder enclosing with small idle gaps around said battery and mounted in the manner mechanically independent from the driven device.

Growing community of inventors

Higashimurayama, Japan

Yoshio Iinuma