Anisotropic conductive film with conductive particles forming repeating units of polygons
AssigneeDexerials Corporation
InventorsYasushi Akutsu, Reiji Tsukao
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Abstract
An anisotropic conductive film capable of accommodating bumps with a narrow pitch and reducing the number density of conductive particles in comparison to known anisotropic conductive films. In an anisotropic conductive film, conductive particles are disposed in an insulating resin binder, and repeating units of polygons formed by successively connecting the centers of a plurality of conductive particles are disposed repeatedly in the vertical and horizontal directions in a plan view. The sides of the polygons of the repeating units intersect diagonally with the long-side direction or the short-side direction of the anisotropic conductive film.
Claims16
An anisotropic conductive film comprising conductive particles disposed in an insulating resin binder,
- wherein repeating units of polygons formed by successively connecting the centers of a plurality of conductive particles are repeatedly disposed in a plan view;
- and
- wherein the polygons of the repeating units have sides, at least one of the sides intersecting diagonally with a long-side direction of the anisotropic conductive film and at least one of the sides do not intersect diagonally with a short-side direction of the anisotropic conductive film;
- wherein the repeating units are trapezoids;
- and
- wherein each conductive particle of a repeating unit forms a vertex of the repeating unit.
Dependencies are inferred from the claim text.