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US5734555A Expired / Lapsed US ⏱️ 0.0 years remaining

Shared socket multi-chip module and/or piggyback pin grid array package

Assignee: Intel Corp
•
Filing: 1994-03-30
•
Granted: 1998-03-31
•
Expires: 2014-03-30
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Abstract

Abstract An electronic package for an integrated circuit (IC). The package has a plurality of first pins extending from a laminated plastic/printed circuit board substrate. The pins are coupled to the integrated circuit and provide a means for mounting the package to an external printed circuit board. The package also has an internal circuit board that is coupled to both the substrate and the IC by a plurality of second pins. Mounted to the circuit board are passive and/or active electrical elements that are connected to the integrated circuit through the second pins. Some of the second pins may extend entirely through the substrate to directly couple the internal circuit board and electrical elements to the external printed circuit board. To improve the thermal impedance of the package, the integrated circuit is mounted to a heat slug which can be attached to a heat sink. The heat sink may also provide a substrate for the internal circuit board.

Inventors

  • 👤 John Francis McMahon

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 15:26
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/0201; H05K1/0203; H05K1/0204; H05K7/00; H05K7/02; H05K7/10; H05K7/1053; H05K7/1076; H05K7/1084; H05K1/14; H05K1/144; H05K2201/00; H05K2201/10; H05K2201/10227; H05K2201/10295; H05K2201/10303; H05K2201/1031; H05K2201/10318; H05K2201/10416

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 98 words
An electronic package, comprising: a first circuit board; a plurality of first pins that terminate at and extend from said first circuit board; an integrated circuit coupled to said first pins; a second circuit board that has a slot; a heat slug that is located within said slot of said second circuit board and is coupled to said integrated circuit; at least one electrical element mounted to said second circuit board; and, a plurality of second pins coupled to said electrical element, said second pins terminate at said second circuit board and extend into said first circuit board.
Claim 2
Dependent Claim 98 words
An electronic package, comprising: a first circuit board; a plurality of first pins that terminate at and extend from said first circuit board; an integrated circuit coupled to said first pins; a second circuit board that has a slot; a heat slug that is located within said slot of said second circuit board and is coupled to said integrated circuit; at least one electrical element mounted to said second circuit board; and, a plurality of second pins coupled to said electrical element, said second pins terminate at said second circuit board and extend into said first circuit board.
Claim 3
Dependent Claim 20 words
The electronic package as recited in claim 1, wherein at least one second pin extends through said first circuit board.
Claim 4
Dependent Claim 23 words
The electronic package as recited in claim 1, further comprising a heat sink attached to said heat slug and said second circuit board.
Claim 5
Dependent Claim 18 words
The electronic package as recited in claim 1, further comprising a plastic element that captures said first pins.
Claim 6
Dependent Claim 21 words
The electronic package as recited in claim 3, wherein said heat slug is located within a slot of said heat sink.
Claim 7
Dependent Claim 19 words
The electronic package as recited in claim 1, wherein said second circuit board is mounted to a heat sink.
Claim 8
Dependent Claim 19 words
The electronic package as recited in claim 1, further comprising an encapsulant between said first and second circuit boards.
Claim 9
Dependent Claim 14 words
The electronic package as recited in claim 1, wherein said electrical element is passive.
Claim 10
Dependent Claim 16 words
The electronic package as recited in claim 1, wherein said electrical element is a voltage regulator.
Claim 11
Dependent Claim 16 words
The electronic package as recited in claim 1, wherein said electrical element is a power converter.
Claim 12
Dependent Claim 25 words
The electronic package as recited in claim 4, further comprising a lid that is mounted to said plastic element and which encloses said integrated circuit.

References Cited (Backward Citations)

US3403300A Cited
US4514784A Cited
US4729061A Cited
US5016138A Cited
US5036431A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2001-03-30 2001-09-29 2002-03-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2005-03-30 2005-09-29 2006-03-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2009-03-30 2009-09-29 2010-03-31 $7700.00 Window Closed / Lapsed

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