US5019673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flip-chip package for integrated circuits
Assignee: NXP USA Inc
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Filing: 1990-08-22
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Granted: 1991-05-28
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Expires: 2010-08-22
Abstract
Abstract A flip-chip package for integrated circuits is provided by over-molding an integrated circuit assembly which includes a flip-chip mounted to a very thin chip carrier. The flip-chip includes an array of bumped pads which fill an array of matching conductive through holes on the chip carrier and securely couple thereto. The chip carrier includes an array of bumped contacts on its back surface which correspond to the bumped pads of the flip-chip. The transfer over molding of the integrated circuit assembly provides a layer of epoxy around the exposed surfaces of the flip-chip providing an environmentally protected and removable integrated circuit package.
Inventors
- 👤 Frank J. Juskey
- 👤 Barry M. Miles
- 👤 Marc V. Papageorge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:46
CPC Classifications
H; H10; H10W; H10W72/00; H10W72/20; H10W72/071; H10W72/072; H10W72/07231; H10W72/07236; H10W72/251; H10W90/00; H10W90/701; H10W90/721; H10W90/724
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
102 words
An integrated circuit package, comprising: an integrated circuit assembly including: a flip-chip having an array of bumped pads positioned on a bottom surface for providing terminals of an integrated circuit formed within said flip-chip; a chip carrier being coupled to said flip-chip on a top major surface having through-holes being filled with said bumped pads of said flip-chip, said chip carrier includes an arrangement of contact pads formed on a major bottom surface which are correspondingly coupled to said bumped pads; said integrated circuit assembly being molded with a curable epoxy to provide a protective layer around exposed surfaces of said flip-chip.
Claim 2
Dependent Claim
102 words
An integrated circuit package, comprising: an integrated circuit assembly including: a flip-chip having an array of bumped pads positioned on a bottom surface for providing terminals of an integrated circuit formed within said flip-chip; a chip carrier being coupled to said flip-chip on a top major surface having through-holes being filled with said bumped pads of said flip-chip, said chip carrier includes an arrangement of contact pads formed on a major bottom surface which are correspondingly coupled to said bumped pads; said integrated circuit assembly being molded with a curable epoxy to provide a protective layer around exposed surfaces of said flip-chip.
Claim 3
Dependent Claim
14 words
The integrated circuit package of claim 1, wherein said contact pads comprise bumped pads.
References Cited (Backward Citations)
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US4700473A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-27 | 1994-11-26 | 1995-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-27 | 1998-11-26 | 1999-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-27 | 2002-11-26 | 2003-05-28 | $7700.00 | Window Closed / Lapsed |