摘要 |
PURPOSE: To achieve stable formation of insulating layers on electrode surfaces other than the conducting parts between the electrodes and conductive particles by forming on the electrode surfaces the insulating layers which, when an anisotropic conductive film is heated and pressed, are broken by the conductive particles of the anisotropic conductive film and achieve conduction between the conductive particles and the electrodes. CONSTITUTION: An anisotropic conductive film 7 is placed between a glass substrate 1 on which is formed an electrode 2 covered with an insulating layer 5 and a flexible printed board 3 on which is formed an electrode 4 covered with an insulating layer 6, and is heated and pressed. Then the adhesive layer 7a of the film 7 pressed flows and conductive particles 7b between the electrodes 2, 4 are pressed by the electrodes 2, 4 and allowed to penetrate through the insulating layers 5, 6 to make contact with the electrodes 2, 4. Therefore, even if the adhesive layer 7a has absorbed moisture and condensation forms on the layer 7a, leakage currents to the electrodes 2, 4 are shut off at the layers 5, 6 other than the contact region. Therefore, initial insulation resistance can be enhanced, and good insulation reliability can be secured. |