Seiko Epson Corporation

Fumiaki Matsushima

Yoshihiro Ono

Kuniyasu Matsui

Mitsuro Atobe

Yoshihiro Ohno

Tsutomu Ota

Yasuto Nose

Shigeyuki Ogino

Akira Makabe

Nobuaki Hashimoto

Haruki Ito

Tetsuya Osaka

Terunao Hanaoka

Kazushige Umetsu

Kenji Wada

Hiroshi Kiguchi

Satoru Miyashita

Kazunori Sakurai

Toshiki Nakajima

Kozo Gyota

Sadaaki Sakai

Toshinori Sumita

Akihiko Uematsu

Taeko Nakano

Tsuyoshi Sunagawa

A method for forming a bump includes the steps of forming a resist layer so that a through-hole formed therein is located on a pad; and forming a metal layer to be electrically connected to the pad conforming to the shape of the through-hole. The metal layer is formed so as to have a shape in which is formed a region for receiving a soldering or brazing material.

Method for forming a bump, semiconductor device and method of fabricating same, semiconductor chip, circuit board, and electronic instrument

A method of manufacturing a semiconductor device comprises a step of forming a through-hole in a semiconductor chip having an electrode and forming a conductive layer on a region comprising an inner side of the through-hole. An intermediate portion of the through-hole is formed to be larger than an edge portion thereof, and the conductive layer is formed by electroless plating.

Semiconductor device and manufacturing method therefor, circuit board, and electronic equipment

The invention provides a method for readily forming a bump with a desired width, a semiconductor device and a method for making the same, a circuit board, and an electronic device. A method for forming a bump includes forming an opening in an insulating film which exposes at least a part of a pad, and forming the bump so as to be connected to the pad. A resist layer defines a through hole which extends over at least a part of the pad in plan view. A metal layer is formed in the opening so as to connect to the exposed portion of the pad.

Method for forming bump, semiconductor device and method for making the same, circuit board, and electronic device

Semiconductor device and manufacturing thereof, including a through-hole with a wider intermediate cavity

Method and apparatus for manufacturing color filter

A color filter for a liquid crystal display device comprises an optically transparent substrate, a transparent conductive layer formed on the substrate, and a color layer formed on the transparent conductive layer with red, green and blue pixels arranged in a predetermined pattern. The color layer comprises pigments for coloring purpose and transparent conductive particles having a hydrophobic surface. The transparent conductive particles are included from 5% to 50% by volume of the color layer. The color layer may preferably have a specific resistivity of from 10.sup.-1 .OMEGA..multidot.cm to 10.sup.8 .OMEGA..multidot.cm. The transparent conductive particles comprise base transparent conductive particles having a hydrophobic compound bound on their surface by coupling or graft polymerization. A typical process of the color filter production comprises the steps of: (a) forming the transparent conductive layer of a predetermined pattern on the transparent substrate, (b) preparing a micelle colloid dispersion by dispersing a pigment and transparent conductive particles having hydrophobic surface in a medium containing a redox reactive surfactant and an electrolyte, and (c) carrying out an electrolysis in the micelle colloid dispersion by utilizing the transparent conductive layer on the transparent substrate for the anode to deposit the color layer comprising the pigment and the transparent conductive particles on the transparent conductive layer.

Color filter for liquid crystal display device and method for producing

A color filter formed in accordance with the invention is formed by depositing a thin film of organic pigment an on electrode by electrochemical methods. An organic pigment is included in an aqueous micellar solution that includes a surfactant that has redox reactivity. The surfactant preferably has a metallocene such as ferrocene at the hydrophobic terminal end group. A transparent substrate having a transparent electrode thereon is emersed in the micellar solution. Voltage is applied to the transparent electrode and the organic pigment will form on the transparent electrode. Conductive particles, polymer material or conductive polymer material can be included with or on the pigment. Alternatively, the polymer or conductive polymer can be layered.

Color filter and method of preparation

Method of preparation of a color filter by electrolytic deposition of a

Thin film devices including a film of a functional organic material, inorganic material or mixtures which are either insoluble or sparingly soluble in water, and deposited by electroplating. Particles of the functional material are dispersed in a micelle solution of a surfactant which is oxidizable and reducible by electrolysis in a colloidal state. Thin film devices prepared include color filters, optical recording media, electrochemical photoreceptors, nonlinear switching elements, and other devices requiring thin films of materials which are substantially insoluble in water.

Thin film color filter for liquid crystal display

A bidirectional nonlinear resistor for use as a nonlinear active element having a highly insulating organic film formed on a first conductor by polymerizing in an electrolytic solution containing a supporting electrolyte and a soluble organic compound, and a second conductor identical or not identical in kind with the first conductor formed on the organic film is provided. An active matrix substrate including a plurality of the bidirectional nonlinear resistor elements may be used to have a liquid crystal display panel. In a preferred embodiment, the electrolytic solution includes an alkali hydroxide as a supporting electrolyte so that dopant need not be removed after formation of the film. The electrolytic solution which is electrolytically polymerized to form the insulating organic film includes a monomer, preferably pyrrole, pyrrole derivatives, phenol or phenol derivatives, dissolved in an electrolytic solution.

Bidirectional nonlinear resistor, active matrix liquid crystal panel

Method for forming a thin film device

Thin film device and method of manufacture

A bidirectional nonlinear resistor for use as a nonlinear active element having a highly insulating organic film formed on a first conductor by polymerizing an electrolytic solution containing a supporting electrolyte and a soluble organic compound, and a conductor identical or not identical in kind with the first conductor formed on the organic film is provided. An active matrix substrate including a plurality of the bidirectional nonlinear resistor elements may be used to have a liquid crystal display panel.

Method for production of a bidirectional nonlinear resistor, active

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Chino, Japan

Fumiaki Matsushima