PLATED GOLD FILM AND PRODUCTION METHOD THEREFOR

申请公布号：JP2007177291(A)

申请号：JP20050377355

申请日期：2005.12.28

申请公布日期：2007.07.12

申请人：

SHINSHU UNIV;MIKUNI KOGYO:KK

发明人：FUJISHIGE MASATSUGU;ARAI SUSUMU;O MINE

分类号：C25D5/18;C25D3/48;C25D5/34

主分类号：C25D5/18

摘要：PROBLEM TO BE SOLVED: To provide a gold plating method for forming a plated gold film having superior hardness and electric conductivity, on an electric connection part. SOLUTION: This gold plating method includes: employing a non-cyanide gold plating bath containing a cationic additive; and supplying a pulse current having a pulse period of 5 msec to 300 msec and a duty ratio of 0.001 to 0.5 between a cathode of a body to be plated and an anode. Thus plated gold film is formed of a single metallic element, comprises crystallites with an average particle diameter of 17 nm to 25 nm, and has a Vickers hardness of 160 Hv or higher. COPYRIGHT: (C)2007,JPO&INPIT

BUBBLE GENERATION METHOD AND DEVICE THEREOF

UNIT HOSPITAL

METHOD FOR JOINTING PROPELLER PIPE AND EXISTENT MAN-HOLE TO EACH OTHER

CONSTRUCTION OF ANCHOR AND HANGER THEREFOR

CRUSHING OF CONCRETE PILE HEAD

CONSTRUCTION OF COLUMN-LINE TYPE UNDERGROUND CONTINUOUS WALL

UNUSED CIRCUIT SELECTOR

DEVELOPING DEVICE

MEMBER FOR ELECTRIFICATION

ANTIBACTERIAL DEODORANT FOR FIBER

PRODUCTION OF CHENILLE YARN

POLYPHENYLENE SULFIDE CONJUGATE FIBER

PRODUCTION OF HIGH-TENACITY POLYVINYL ALCOHOL-BASED YARN HAVING SLIGHT DISCOLORATION

METHOD FOR SUPPRESSING SLUDGING IN TIN ELECTRO-PLATING

MICROWAVE PLASMA CVD APPARATUS

PRODUCTION OF THIN DIELECTRIC FILM

BOBBIN FOR SPINNING FRAME

WIG

FORMATION OF NITRIDE FILM

TRANSPORT CARRIAGE