| US 7,578,421 B2 | ||
| Horn-holder pivot type bonding apparatus | ||
| Kohei Seyama, Musashimurayama (Japan) | ||
| Assigned to Kabushiki Kaisha Shinkawa, Tokyo (Japan) | ||
| Filed on Mar. 06, 2007, as Appl. No. 11/714,560. | ||
| Claims priority of application No. 2006-058925 (JP), filed on Mar. 06, 2006. | ||
| Prior Publication US 2007/0205252 A1, Sep. 06, 2007 | ||
| Int. Cl. B23K 20/10 (2006.01) | ||
| U.S. Cl. 228—1.1 [228/180.5; 228/4.5; 228/904; 228/110.1] | 15 Claims |
| 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.
|