ANISOTROPIC CONDUCTIVE SHEET, MANUFACTURING METHOD THEREOF, AND PRODUCT USING THE SAME

• Main Authors: SENO KOJI, HARUTA YUICHI
• Format: Patent
• Language: English
• Published: 02.10.2006
• Subjects: BASIC ELECTRIC ELEMENTS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CURRENT COLLECTORS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; LINE CONNECTORS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PRINTED CIRCUITS

There is provided an anisotropic conductive sheet capable of surely achieving a predetermined electrical connection even with an object having a very small arrangement pitch of electrodes to be connected, a manufacturing method thereof, and a product using the anisotropic conductive sheet. The anisotropic conductive sheet includes: an insulation sheet made of elastic polymer material having a plurality of conductive path forming through holes extending in the thickness direction; and a conductive path elements arranged as a unitary block with the respective conductive path forming through holes of the insulation sheet. An exposure mask used has a plurality of light transmitting through holes each having a diameter reduced from a first surface toward a second surface and formed according to a pattern corresponding to the pattern of the conductive path elements to be formed. The conductive path forming through holes are formed by applying a laser beam via the light transmitting through holes from the second surface of the exposure mask.