Contact tip structure for microelectronic interconnection elements and method of making same

Electrical contact structures, comprising:

• a plurality of interconnection elements disposed in relatively rough (coarse) relationship with one another;
• a plurality of contact tip structures affixed by joints to respective ones of the interconnection elements, the contact tip structures being disposed in relatively precise positional relationship with one another.

Method of interconnecting two electronic components, comprising:

• joining prefabricated contact tip structures to interconnection elements extending from a surface of a one of two electronic components;
• and
• urging the contact tip structures against corresponding terminals on an other of the two electronic components.

Contact tip structures adapted in use for joining to ends of interconnection elements, comprising:

• a plurality of contact tip structures fabricated and residing upon a sacrificial substrate at predetermined positions on the sacrificial substrate;
• wherein, in use, the sacrificial substrate is separated from the contact tip structures after the contact tip structures are joined to a corresponding plurality of interconnection elements.

Prefabricated contact tip structures adapted in use for making connections to terminals of an electronic component, comprising:

• a plurality of metallic structures formed upon a sacrificial substrate, said metallic structures adapted in use to be joined to interconnection elements and effecting electrical connections between the interconnection elements and terminals of an electronic component.