公开(公告)号：US20180022968A1

公开(公告)日：2018-01-25

申请号：US15546150

申请日：2016-03-18

Applicant: DEXERIALS CORPORATION

Inventor： Shigeyuki YOSHIZAWA ,  Masao SAITO ,  Yasushi AKUTSU

IPC: C09J9/02 ,  H01B5/16 ,  H01R43/00 ,  H01B13/00 ,  H01R11/01 ,  C09J7/00 ,  H01B1/22

Abstract: Provided is an anisotropic conductive film that allows conductive particles to be sufficiently captured even by connecting terminals disposed at a fine pitch and can suppress a short circuit, and in particular, that can suppress variation of conduction resistance of a connection portion even when partial contact is caused by a thermal pressing tool during anisotropic conductive connection. In an anisotropic conductive film 1A, an insulating adhesive layer 3 contains conductive particles 2. The conductive particles 2 have an aspect ratio of 1.2 or more and are dispersed without being in contact with each other as viewed in a plan view, and an angle formed between a film surface S of the anisotropic conductive film 1A and a major axis direction of each of the conductive particles 2 is less than 40°. The anisotropic conductive film 1A preferably contains columnar conductive glass particles as the conductive particles 2.

公开(公告)号：US20180277505A1

公开(公告)日：2018-09-27

申请号：US15571241

申请日：2016-05-27

Applicant: DEXERIALS CORPORATION

Inventor： Shinichi HAYASHI ,  Masao SAITO ,  Yasushi AKUTSU ,  Reiji TSUKAO

IPC: H01L23/00 ,  C09J9/02 ,  C09J7/10

CPC classification number: H01L24/29 ,  C08K3/36 ,  C08K2201/001 ,  C09J7/10 ,  C09J9/02 ,  C09J163/00 ,  C09J2201/28 ,  C09J2201/602 ,  C09J2203/326 ,  C09J2205/102 ,  C09J2463/00 ,  C09J2471/00 ,  H01L2224/29076 ,  H01L2224/29291 ,  H01L2224/293

Abstract: An anisotropic conductive film includes an insulating adhesive layer and conductive particles disposed thereon. Arrangement axes of the conductive particles having a particle pitch extend in a widthwise direction of the film, and the axes are sequentially arranged with an axis pitch in a lengthwise direction of the film. The particle pitch, axis pitch of the axes, and an angle θ of the axes relative the widthwise direction of the film are determined according to external shapes of terminals so 3 to 40 conductive particles are present on each terminal when a terminal arrangement region of an electronic component is superimposed on the film so a lengthwise direction of each terminal is aligned with the widthwise direction of the film. By using the film, stable connection reliability is obtained and an excessive increase in the density of the conductive particles is suppressed even in the connection of fine pitches.

公开(公告)号：US20170352967A1

公开(公告)日：2017-12-07

申请号：US15538525

申请日：2015-12-22

Applicant: DEXERIALS CORPORATION

Inventor： Shinichi HAYASHI ,  Masao SAITO ,  Reiji TSUKAO ,  Yasushi AKUTSU

IPC: H01R11/01 ,  H01B5/14 ,  H01B1/20

CPC classification number: H01R11/01 ,  H01B1/20 ,  H01B5/14 ,  H01R13/2414 ,  H05K3/323

Abstract: An anisotropic electrically conductive film that is suitable for use in fine-pitch FOG connections and COG connections and that also can reduce increases in production costs associated with increasing the electrically conductive particle density. The anisotropic electrically conductive film includes an electrically insulating adhesive layer and electrically conductive particles disposed within the electrically insulating adhesive layer. The anisotropic electrically conductive film has electrically conductive particle disposition regions that are disposed in a manner corresponding to the arrangement of terminals of electronic components to be connected. The electrically conductive particle disposition regions are formed periodically in the longitudinal direction of the anisotropic electrically conductive film. The anisotropic electrically conductive film also has buffer regions in which no electrically conductive particles are disposed that are formed between adjacent electrically conductive particle disposition regions for connection.