Claims
- 1. A packaging and interconnection of a contact structure, comprising:a contact structure made of conductive material and formed on a contact substrate, said contact structure having a base portion vertically formed on said contact substrate, a horizontal portion, one end of which being formed on said base portion, and a contact portion vertically formed on another end of said horizontal portion; a contact trace formed on a surface of said contact substrate and electrically connected to said contact structure at one end, the other end of said contact trace being formed of a contact pad; a printed circuit board (PCB) pad provided on a printed circuit board (PCB) substrate positioned at an outer periphery of said contact structure; a double layer lead for electrically connecting a surface of the contact pad and the PCB pad; an elastomer provided under said contact substrate for allowing flexibility in said interconnection and packaging; and a support structure provided between said elastomer and said PCB substrate for supporting said contact structure, said contact substrate and said elastomer; wherein substantially all portions of said contact structure are projected from said contact substrate to a free space to allow free movements of at least said horizontal portion and said contact portion, and wherein said horizontal portion of said contact structure produces a resilient contact force when said contact structure is pressed against a contact target, thereby scrubbing a surface of the contact target.
- 2. A packaging and interconnection of a contact structure as defined in claim 1, wherein said PCB substrate is made of glass epoxy resin or ceramics.
- 3. A packaging and interconnection of a contact structure as defined in claim 1, wherein said PCB substrate is a multilayer printed circuit board.
- 4. A packaging and interconnection of a contact structure as defined in claim 1, wherein said support structure is made of ceramic, molded plastic or metal.
- 5. A packaging and interconnection of a contact structure as defined in claim 1, wherein said double layer lead is formed in a tape automated bonding (TAB) structure.
- 6. A packaging and interconnection of a contact structure as defined in claim 1, wherein said double layer lead has a gull-wing shape and at least one of conductive leads is used for electrically connecting said contact pad and said PCB pad.
- 7. A packaging and interconnection of a contact structure as defined in claim 1, wherein one end of said double layer lead is connected to said PCB pad through a conductive bump.
- 8. A packaging and interconnection of a contact structure as defined in claim 7, wherein said conductive bump is a solder ball which reflows by application of heat to electrically connect said other end of said double layer lead and said PCB pad.
- 9. A packaging and interconnection of a contact structure as defined in claim 7, wherein said conductive bump is a conductive polymer bump or a compliant bump to electrically connect said other end of said double layer lead and said PCB pad.
- 10. A packaging and interconnection of a contact structure as defined in claim 1, wherein one end of said double layer lead is connected to said PCB pad through a conductive polymer.
- 11. A packaging and interconnection of a contact structure as defined in claim 10, wherein said conductive polymer is a conductive adhesive, conductive film, conductive paste or conductive particles.
- 12. A packaging and interconnection of a contact structure as defined in claim 10, wherein said conductive polymer is a conductive elastomer including an anisotropic conductive adhesive, anisotropic conductive film, anisotropic conductive paste or anisotropic conductive particles to electrically connect said other end of said double layer lead and said PCB pad.
- 13. A packaging and interconnection of a contact structure as defined in claim 1, wherein one end of said double layer lead is formed of an upper lead and a lower lead provided under said upper lead to be respectively connected to corresponding PCB pads provided on said PCB substrate.
- 14. A packaging and interconnection of a contact structure as defined in claim 13, wherein said upper lead and said lower lead are respectively connected to corresponding PCB pads provided on said PCB substrate through corresponding conductive bumps.
- 15. A packaging and interconnection of a contact structure as defined in claim 13, wherein said upper lead and said lower lead are respectively connected to corresponding PCB pads provided on said PCB substrate through corresponding conductive polymers.
- 16. A packaging and interconnection of a contact structure, comprising:a contact structure made of conductive material and formed on a contact substrate, said contact structure having a base portion vertically formed on said contact substrate, a horizontal portion, one end of which being formed on said base portion, and a contact portion vertically formed on another end of said horizontal portion; a contact trace formed on a surface of said contact substrate and electrically connected to said contact structure at one end, the other end of said contact trace being formed of a contact pad; a printed circuit board (PCB) pad provided on a printed circuit board (PCB) substrate positioned at an outer periphery of said contact structure; a triple layer lead for electrically connecting a surface of the contact pad and the PCB pad; an elastomer provided under said contact substrate for allowing flexibility in said interconnection and packaging; and a support structure provided between said elastomer and said PCB substrate for supporting said contact structure, said contact substrate and said elastomer; wherein substantially all portions of said contact structure are projected from said contact substrate to a free space to allow free movements of at least said horizontal portion and said contact portion, and wherein said horizontal portion of said contact structure produces a resilient contact force when said contact structure is pressed against a contact target, thereby scrubbing a surface of the contact target.
- 17. A packaging and interconnection of a contact structure as defined in claim 16, wherein said PCB substrate is made of glass epoxy resin or ceramics.
- 18. A packaging and interconnection of a contact structure as defined in claim 16, wherein said PCB substrate is a multilayer printed circuit board.
- 19. A packaging and interconnection of a contact structure as defined in claim 16, wherein said support structure is made of ceramic, molded plastic or metal.
- 20. A packaging and interconnection of a contact structure as defined in claim 16, wherein said triple layer lead is formed in a tape automated bonding (TAB) structure.
- 21. A packaging and interconnection of a contact structure as defined in claim 16, wherein said triple layer lead has a gull-wing shape and at least one of conductive leads is used for electrically connecting said contact pad and said PCB pad.
- 22. A packaging and interconnection of a contact structure as defined in claim 16, wherein one end of said triple layer lead is connected to said PCB pad through a conductive bump.
- 23. A packaging and interconnection of a contact structure as defined in claim 22, wherein said conductive bump is a solder ball which reflows by application of heat to electrically connect said other end of said triple layer lead and said PCB pad.
- 24. A packaging and interconnection of a contact structure as defined in claim 22, wherein said conductive bump is a conductive polymer bump or a compliant bump to electrically connect said other end of said triple layer lead and said PCB pad.
- 25. A packaging and interconnection of a contact structure as defined in claim 16, wherein one end of said triple layer lead is connected to said PCB pad through a conductive polymer.
- 26. A packaging and interconnection of a contact structure as defined in claim 25, wherein said conductive polymer is a conductive adhesive, conductive film, conductive paste or conductive particles.
- 27. A packaging and interconnection of a contact structure as defined in claim 25, wherein said conductive polymer is a conductive elastomer including an anisotropic conductive adhesive, anisotropic conductive film, anisotropic conductive paste or anisotropic conductive particles to electrically connect said other end of said triple layer lead and said PCB pad.
- 28. A packaging and interconnection of a contact structure as defined in claim 16, wherein one end of said triple layer lead is formed of an upper lead, an intermediate lead provided under said upper lead, and a lower lead provided under said intermediate lead to be respectively connected to corresponding PCB pads provided on said PCB substrate.
- 29. A packaging and interconnection of a contact structure as defined in claim 28, wherein said upper lead, said intermediate lead, and said lower lead are respectively connected to corresponding PCB pads provided on said PCB substrate through corresponding conductive bumps.
- 30. A packaging and interconnection of a contact structure as defined in claim 28, wherein said upper lead, said intermediate lead, and said lower lead are respectively connected to corresponding PCB pads provided on said PCB substrate through corresponding conductive polymers.
Parent Case Info
This application is a continuation of U.S. patent application Ser. No. 09/240,457 filed on Jan. 29, 1999, now U.S. Pat. No. 6,255,585 B1.
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Continuations (1)
|
Number |
Date |
Country |
Parent |
09/240457 |
Jan 1999 |
US |
Child |
09/765113 |
|
US |