Patent ID: 6311890
Filing Date: 2001-11-06
Classification: B23K,H01L,Y10S

Abstract:
A wire bonding capillary used for wire bonding on a semiconductor device having a plurality of components comprising:a wire bonding capillary tool including:a capillary tip having an elongated hole therethrough terminating at one end of the capillary tip anda face on the one end of the capillary tip, the face including a first frusto-conical surface extending from a portion of the elongated hole of the capillary tip, a second frusto-conical surface having a portion thereof connected to the first frusto-conical surface, a substantially horizontal annular surface having a portion connected to the second frusto-conical surface, said substantially horizontal annular surface defined by the radius of curvature of the capillary tip, and a concave surface with a degree of curvature, said concave surface extending from a portion of the substantially horizontal annular surface, the degree of curvature of the concave surface defined by a radius of curvature and the degree of curvature of the concave surface providing clearance of the capillary tip from adjacent components of said plurality of components.