Patent ID: 8551275

Claim:
An adhesive application method of applying adhesive to a protruding part formed on a flexible printed circuit, wherein the adhesive application method comprises: a protruding part forming step of forming the protruding part which protrudes from the flexible printed circuit; an adhesive preparing step of forming an adhesive layer on the surface of a plate member; a positioning step of positioning, after the adhesive preparing step, the protruding part formed in the protruding part forming step at a position facing the adhesive layer; an adhesive applying step of allowing, after the positioning step, a leading edge of the protruding part and the adhesive layer to be brought into contact with each other such that the surface of the substrate around the protruding part does not contact the adhesive layer; and a moving step of automatically moving the flexible printed circuit and the plate member relative to each other by using a transferring apparatus, wherein the moving step comprises: a first step of moving the flexible printed circuit toward the surface of the plate member along a direction perpendicular to the surface of the plate member while the leading edge of the protruding part and the adhesive layer are in contact with each other, a second step of moving, after the first step, the flexible printed circuit in a first direction for a first predetermined distance from an origin, which is a position at which the leading edge of the protruding part and the adhesive layer contacts each other, and then moving the flexible printed circuit in a second direction within a plane parallel with the surface of the plate member for a second predetermined distance from the origin, wherein the second direction is not parallel with the first direction and forms a predetermined angle with the first direction, and the second step is performed while the surface of the flexible printed circuit around the protruding part is not in contact with the adhesive layer, and the leading edge of the protruding part and the adhesive layer are in contact with each other; and a third step of moving the flexible printed circuit away from the surface of the plate member along the direction perpendicular to the surface of the plate member after the second step.