公开(公告)号：JPH06300114A

公开(公告)日：1994-10-28

申请号：JP8654893

申请日：1993-04-13

Applicant: SEIKO EPSON CORP

Inventor： SUZUKI YUJI ,  KARASAWA YASUSHI ,  NOSE YASUTO

IPC: C25D1/00 ,  F16H55/12

Abstract: PURPOSE:To provide a minute gear and its manufacture by electroforming process in which a structural body formed with photosensitive resin film is used as a mold. CONSTITUTION:A gear pattern is formed with dry films 16-1 to 16-5 on a substrate 13 on which a conductive layer is formed. Then the dry film 16-5 is peeled off from the dry film 16-5 after metallic layers 17-1, 17-2, 20, 21-1, and 21-2 have been formed by electroforming.

公开(公告)号：JPH0671895A

公开(公告)日：1994-03-15

申请号：JP23019992

申请日：1992-08-28

Applicant: SEIKO EPSON CORP

Inventor： SUZUKI YUJI ,  KARASAWA YASUSHI ,  ATOBE MITSUAKI

IPC: B41J2/16

Abstract: PURPOSE:To provide a manufacturing method of an ink jet recording head of which the life and reliability are improved by using a photosensitive resin which is surface-modified by the contact with a reactive gas, and of which the ink resistance is improved, for the ink passage. CONSTITUTION:After alkalescent developing type photosensitive resin layers 5, 6 are formed on a nozzle plate 1 and vibration plate 4 of an ink jet recording head and exposed to light, the photosensitive resin layers 5, 6 are developed by an alkalescent solvent to form an ink passage. After the photosensitive resin layers 5, 6 are brought into contact with an activated reactive gas and surface-modified, the photosensitive resin layer 5 on the nozzle plate 1, and the photosensitive resin layer 6 on the vibration plate 4 are bonded.

公开(公告)号：JPH04316341A

公开(公告)日：1992-11-06

申请号：JP8374991

申请日：1991-04-16

Applicant: SEIKO EPSON CORP

Inventor： KARASAWA YASUSHI

IPC: H01L21/60 ,  H01L21/321

Abstract: PURPOSE:To enable an oxide film to be formed with a simple method and achieve a manufacturing method for suppressing an amount of consumption of a metal salt within a plating liquid when producing a protrusion-shaped electrode which is used in a fine packaging of a semiconductor element using the electroless plating method. CONSTITUTION:After an oxide film 2 is formed on a semiconductor substrate 1 where a circuit is formed using an oxidizer, a nickel/phosphor layer 8 and a gold layer 9 are laminated on an electrode of an aluminum layer 3.

公开(公告)号：JPH04218919A

公开(公告)日：1992-08-10

申请号：JP7922091

申请日：1991-04-11

Applicant: SEIKO EPSON CORP

Inventor： KARASAWA YASUSHI

IPC: H01L21/3205 ,  C23C18/31 ,  H01L21/28 ,  H01L21/321 ,  H01L21/60 ,  H01L23/52 ,  H01L29/43

Abstract: PURPOSE:To realize circuit connection of low cost, high connection reliability and low contact resistance by forming an electrode used for fine package of an electronic element of Pd, Rh, Ru, Ir or an alloy containing the metals. CONSTITUTION:After an Al layer 2 is formed by sputtering method on an Si substrate 1 with a circuit formed, a Pd layer 4, an Ni/P layer 5 and a Pd/P layer 6 are laminated one by one by electroless plating method.

公开(公告)号：JPH03155637A

公开(公告)日：1991-07-03

申请号：JP5139390

申请日：1990-03-02

Applicant: SEIKO EPSON CORP

Inventor： KARASAWA YASUSHI

IPC: H01L21/60 ,  H01L21/28 ,  H01L21/321 ,  H01L29/43

Abstract: PURPOSE:To improve the reliability of wire bonding, and to simplify a manufacturing process is a TAB by selectively laminating palladium, a diffusion preventive metal and a metal enabling metallic joining in succession onto the aluminum wiring metal of an electrode forming section. CONSTITUTION:Electroless plating enabling selective laminating is used as a method in which palladium, a diffusion preventive metal and a metal enabling metallic joining are laminated successively onto an aluminum wiring metal. Palladium is limited up to the etching of the oxide film of the aluminum wiring metal. A silicon substrate 1 having a P-N junction is degreased by alcohol, etched in approximately 1000Angstrom by an aqueous solution mainly comprising sulfuric acid, and dipped into a palladium treating liquid at 10 deg.C containing 10mg/l palladium chloride and 0.1% ammonium fluoride. A nickel-phosphorus layer 6 is plated by an electroless plating bath using nickel sulfate and hypophosphorous acid. Lastly, an NiP surface is activated, and a gold layer 7 is plated by a substitutional electroless gold plating solution, thus manufacturing electrode structure.

公开(公告)号：JPH02276249A

公开(公告)日：1990-11-13

申请号：JP9778189

申请日：1989-04-18

Applicant: SEIKO EPSON CORP

Inventor： KARASAWA YASUSHI

IPC: C23C2/04 ,  C23C28/02 ,  H01L21/321 ,  H01L21/60

Abstract: PURPOSE:To make uniform the laminated height of low-melting point metal layers, such as a solder layer and the like, and to prevent a failure of bonding from generating by a method wherein a gold layer and a metal layer having a melting point of a specified temperature or lower are laminated on an external terminal obtainable by laminating selectively a palladium layer and a nickel alloy layer in order on the wiring metal layer of a semiconductor integrated circuit. CONSTITUTION:A palladium layer 4 is formed on an Al layer 2 which is a bonding pad. Then, a nickel-phosphorus alloy layer 5 is plated in an electroless plating bath. Then, a metal layer 6 is plated with an electroless gold plating solution. Lastly, the layers 2, 4, 5 and 6 are dipped into a heated solder bath while being applied ultrasonic waves to laminate a solder layer 7 having a melting point of 350 deg.C or lower and a bump is manufactured.

公开(公告)号：JPS63146208A

公开(公告)日：1988-06-18

申请号：JP11010187

申请日：1987-05-06

Applicant: SEIKO EPSON CORP

Inventor： KARASAWA YASUSHI

IPC: G11B5/66 ,  G11B5/706 ,  G11B5/73

Abstract: PURPOSE:To improve a noise characteristic by forming an intermediate film consisting of nickel, zinc and phosphorus and specific magnetic film on a nonmagnetic substrate. CONSTITUTION:This magnetic recording medium is formed with the intermediate film consisting of nickel, zinc, and phosphorus and contg. >=1wt% zinc on the nonmagnetic substrate subjected to mirror finishing. The magnetic film of any among the film consisting of cobalt, nickel, zinc, and phosphorus and contg. 0.1-20wt% zinc, or consisting of cobalt, nickel, manganese, and phosphorus and contg. 0.2-2wt% manganse of consisting of cobalt, manganese and phosphorus and contg. 0.5-2wt% manganese is formed on the intermediate layer. Noise output is thereby decreased.

公开(公告)号：JPS62293516A

公开(公告)日：1987-12-21

申请号：JP13762086

申请日：1986-06-13

Applicant: SEIKO EPSON CORP

Inventor： ONO YOSHIHIRO ,  KARASAWA YASUSHI

IPC: C23C18/34 ,  G11B5/858 ,  H01F41/24

Abstract: PURPOSE:To produce a magnetic recording medium having different magnetic characteristics by immersing a nonmagnetic substrate into an aq. soln. in which either of bivalent iron ions and tervalent iron ions or both thereof are dissolved then immersing the substrate into an electroless plating liquid. CONSTITUTION:The characteristics required for the magnetic recording medium vary with the characteristics of a magnetic memory device. The magnetic characteristics of a magnetic film depends on the compsn. of a plating liquid in the case of an electroless plating film and the production process of this invention is capable of producing the magnetic recording medium having the different magnetic characteristics without changing the compsn. of the plating liquid. More specifically, the nonmagnetic substrate is immersed into the aq. soln. in which either of the bivalent iron ions or tervalent ion ions or both thereof are dissolved and thereafter the substrate is immersed into the electroless plating liquid contg. cobalt ion or cobalt ions and nickel ions, by which the magnetic film having the different characteristics is formed on the substrate.

公开(公告)号：JP2010224096A

公开(公告)日：2010-10-07

申请号：JP2009069614

申请日：2009-03-23

Applicant: SEIKO EPSON CORP

Inventor： KOMA TOKUO ,  TANASE KENJI ,  KARASAWA YASUSHI ,  IKEHARA TADAYOSHI

IPC: G02F1/13357 ,  G02B5/20 ,  G02F1/1335

Abstract: PROBLEM TO BE SOLVED: To provide a display device capable of improving color purity. SOLUTION: The display device 100 is provided with: an illumination part 300 including organic EL elements 40a-40c; a plurality of pixels 19 which are arranged so as to overlap the illumination part 300 and are arranged like a matrix; and a reflective liquid crystal display part 200 including red, green, and blue color filters 17 provided to the plurality of pixels 19, and constituted so that the organic EL elements 40a-40c of the illumination part 300 are provided according to each of the blue, green, and red color filters 17 of the reflective liquid crystal display part 200, and wavelength of light emitted from the organic EL elements 40a-40c of the illumination part 300 is different according to colors of the blue, green, and red color filters 17 of the reflective liquid crystal display part 200. COPYRIGHT: (C)2011,JPO&INPIT

公开(公告)号：JP2010008844A

公开(公告)日：2010-01-14

申请号：JP2008169989

申请日：2008-06-30

Applicant: Seiko Epson Corp ,  セイコーエプソン株式会社

Inventor： TANASE KENJI ,  KOMA TOKUO ,  KARASAWA YASUSHI ,  IKEHARA TADAYOSHI

IPC: G02F1/13357 ,  G02F1/1335

Abstract: PROBLEM TO BE SOLVED: To increase the flexibility of optical characteristics of an optical filter, using a metal thin film, and to restrain deterioration of display quality. SOLUTION: The display device 1 includes a reflective or transflective liquid crystal device 100 that provides display using dots AG, each comprising two or more sub-pixels, and a lighting device 200 which is provided opposite to the liquid crystal device and has a plurality of light-emitting elements 230 having a light-shielding layer, the plurality of light-emitting element portions being arranged so that a light-emitting element portion forms a light-shielding region of substantially equal size for each two or more sub-pixels. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了增加使用金属薄膜的滤光器的光学特性的灵活性，并且抑制显示质量的劣化。 解决方案：显示装置1包括反射或半透射型液晶装置100，其提供使用包括两个或更多个子像素的点AG的显示，以及与液晶装置相对设置的照明装置200， 多个发光元件230具有遮光层，所述多个发光元件部分被布置成使得发光元件部分形成对于每个两个或更多个子像素的基本相同尺寸的遮光区域， 像素。 版权所有（C）2010，JPO＆INPIT