Patent ID: 11869868
Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A method for wire-bonding comprising:
feeding a wire through a wire channel of a multifaceted capillary of a wire-bonding machine;
applying a force to press the wire between a bottom surface of the multifaceted capillary and a bonding surface of a substrate, the bottom surface including:
a first face, adjacent to a wire channel, having a first face profile that includes a first surface at a first face angle with the bonding surface;
a second face, adjacent to the first face, having a second face profile that includes a second surface at a second face angle with the bonding surface; and
a third face, adjacent to the second face, having a third face profile that includes a curve having a plateau region that is substantially aligned with the bonding surface; and

delivering power to the wire to raise a temperature of the wire, the raised temperature and the force forming a multi-segment wire-bond, the multi-segment wire-bond including:
a first segment that increases from a first thickness to a second thickness according to a first side cross-sectional profile over a first segment length;
a second segment that increases from the second thickness to a third thickness according to a second side cross-sectional profile over a second segment length, the second side cross-sectional profile being different from the first side cross-sectional profile; and
a third segment that increases from the third thickness to a fourth thickness according to a third side cross-sectional profile over a third segment length, the third side cross-sectional profile being different from the second side cross-sectional profile and the first side cross-sectional profile.