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US 2004/0000579 A1Published application
Forming contact arrays on substrates
OwnerRobert M. Fuerst, David A. Pfaffingerinventors
Life of this patent
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Abstract
An electrical device includes a flat flexible insulating substrate having an opening therethrough. A flat conductive terminal is deposited on one side of the substrate at the opening. A portion of the terminal is formed through the opening so that the terminal has opposite ends at opposite sides of the substrate. One end of the terminal forms a contact portion thereof, and an opposite end of the terminal forms a land portion for receiving a solder ball.
Claims26
An electrical device, comprising:
- a flat flexible insulating substrate having an opening therethrough;
- a flat conductive terminal deposited on one side of the substrate at said opening, a portion of the terminal being formed through the opening so that the terminal has opposite ends at opposite sides of the substrate, one end comprising a contact portion of the terminal and an opposite end comprising a land portion for receiving a solder ball.
A method of fabricating an electrical device, comprising the steps of:
- providing a flat flexible insulating substrate;
- depositing a flat conductive terminal on one side of the substrate, with the terminal having opposite ends;
- removing a portion of the substrate to form an opening beneath at least one end of the terminal;
- and
- forming said at least one end of the terminal through the opening so that opposite ends of the terminal are located at opposite sides of the substrate.
2 more elements
A method of fabricating an electrical device, comprising the steps of:
- providing a flat flexible insulating substrate;
- depositing a flat conductive terminal on one side of the substrate, with the terminal having opposite ends and a central portion between the opposite ends;
- removing portions of the substrate for form openings about the opposite ends of the terminal;
- and
- folding the flat flexible substrate in an area of the central portion of the terminal to cause the opposite ends of the terminal to move through the openings and project from opposite sides of the substrate.
2 more elements
Dependencies are inferred from the claim text.