CONDUCTIVE PARTICLE, INSULATION COATED CONDUCTIVE PARTICLE, ANISOTROPIC CONDUCTIVE ADHESIVE, CONNECTION STRUCTURE AND METHOD OF PRODUCING CONDUCTIVE PARTICLE

• Main Authors: MATSUZAWA MITSUHARU, MATSUZAKI TOSHIAKI, ENOMOTO NANA, NAKAGAWA MASAYUKI, EJIRI YOSHINORI, WATANABE YASUSHI, AKAI KUNIHIKO, YAMAMURA TAIZO
• Format: Patent
• Language: English; Japanese
• Published: 01.02.2016
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; CONDUCTORS; CURRENT COLLECTORS; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRICITY; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; INSULATORS; LINE CONNECTORS; METALLURGY; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

PROBLEM TO BE SOLVED: To provide a conductive particle which can achieve both excellent conduction reliability and excellent insulation reliability when it is used as a conductive particle to be blended with an anisotropic conductive adhesive.SOLUTION: A conductive particle 100a comprises a resin particle 101, and a metal layer 103 disposed on the surface of the resin particle 101. The metal layer 103 comprises a palladium particle 105 and a nickel particle 107 and has a projection 109 on its external surface. The nickel particle 107 is disposed between the projection 109 and the resin particle 101 and covers the palladium particle 105.SELECTED DRAWING: Figure 1 【課題】異方導電性接着剤に配合される導電粒子として用いられたときに優れた導通信頼性及び絶縁信頼性を両立することができる導電粒子を提供する。【解決手段】樹脂粒子１０１と、樹脂粒子１０１の表面に配置された金属層１０３と、を備え、金属層１０３が、パラジウム粒子１０５と、ニッケル粒子１０７と、を含むと共に、外表面に突起１０９を有し、ニッケル粒子１０７が、突起１０９と樹脂粒子１０１との間に配置されていると共にパラジウム粒子１０５を被覆している、導電粒子１００ａ。【選択図】図１