Patent ID: 7578421
Filing Date: 2009-08-25
Classification: B23K,H01L,Y10S

Abstract:
1. A horn-holder pivot type bonding apparatus comprising: a capillary; an ultrasonic horn holding said capillary at one end thereof; a horn holder holding another end of said ultrasonic horn, said horn holder being provided with each of circular arc sections at a forward portion and at a rearward portion thereof, and each circular arc shape of said circular arc section being centered on a virtual pivot point positionally fixed on a bonding surface; a drive means for driving said horn holder to pivot about said virtual pivot point, said drive means being provided one of at substantially a center of an upper portion of said horn holder and above a rear-side portion of said horn holder; and a bonding head, driven in XY directions, provided with each of forward and rearward cams pivotally supported by supporting shafts at portions corresponding to said circular arc sections of said horn holder, each of said cams having circular arc sections being in contact with each of said circular arc sections of said horn holder, and each circular arc shape of said circular arc section of said cam being centered on each of said supporting shafts.