Patent ID: 7524194

Claim:
A method of forming a contact structure on a terminal of an electronic component, said method comprising: forming a patterned sacrificial material on said electronic component, said sacrificial material patterned to include an opening over said terminal defining a base of said contact structure and a molded surface defining a beam of said contact structure, said molded surface contoured to define a cross-sectional-width contour for said beam to increase an area moment of inertia of said beam relative to a beam having an equivalent mass per unit length but lacking said contour; forming said contact structure in said opening and on said molded surface; and removing said sacrificial material from said electronic component, wherein said cross-sectional-width contour of said beam perpendicular to a length of said beam is not rectangular, and wherein the patterned sacrificial material consists of a single layer of material, and said forming said contact structure in said opening comprises forming said contact structure in a single opening in said single layer of material.