Patent ID: 7699209

Claim:
A bonding method for a bonding apparatus for bonding a wire between a first bonding point and a second bonding point, comprising the steps of: preparing a movement mechanism for moving, in XYZ directions, a capillary having a wire inserted therethrough and executing bonding on a work, an electrical conduction state acquisition device for detecting an electrical conduction state by applying an electric current from the wire to the work, an imaging device for taking image of the work, and a computer having a bonding control section for controlling the bonding apparatus and a memory unit for storing data; an electrical non-bonding detection step for electrically detecting non-bonding between the first bonding point and the wire by processing electrical conduction state signals acquired by said electrical conduction state acquisition device and indicative of electrical conduction state between the first bonding point and the wire; an optical non-bonding detection step for optically detecting non-bonding between the first bonding point and the wire by processing images acquired by said imaging device; a data acquisition step for acquiring, from said memory unit, data on whether the first bonding point is a predetermined bonding point on which said electrical non-bonding detection step is not applicable; and a non-bonding verification step for verifying non-bonding of the first bonding point using said optical non-bonding detection step when the first bonding point is said predetermined bonding point that is determined, based upon data acquired in said data acquisition step.