IP Library Granted Patent US 8,492,911
Granted Patent B2
US 8,492,911 · App. 12/840,016 · Granted Jul 23, 2013

Stacked interconnect heat sink

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Quick Facts
Patent No.
US 8,492,911
App. No.
12/840,016
Granted
Jul 23, 2013
Kind
B2
Abstract

An electronic device includes an integrated circuit and a heat spreader. The integrated circuit includes a substrate with an active via located therein. The heat spreader includes a thermally conductive core. The active via is connected to a corresponding heat spreader via that passes through the thermally conductive core.

Claims (11)

1. An electronic device, comprising;

an integrated circuit having a substrate;

an active via located within said substrate;

a heat spreader comprising a thermally conductive core; and

a heat spreader via that passes through said thermally conductive core and is electrically conductively coupled to said active via.

2. The electronic device as recited in claim 1 , wherein said thermally conductive core is an electrically conductive layer.

3. The electronic device as recited in claim 1 , further comprising a substrate plug located within said substrate and connected to said thermally conductive core.

4. The electronic device as recited in claim 1 , wherein said integrated circuit is a first integrated circuit, and said thermally conductive core is located between said first integrated circuit and a second integrated circuit, said active via being configured to conduct a signal between said first and second integrated circuits.

5. The electronic device as recited in claim 1 , wherein said thermally conductive core is an electrically insulating layer, said heat spreader via directly contacts said electrically insulating layer, and a substrate plug located within said substrate is connected to a heat spreader plug located within said electrically insulating layer.

6. The electronic device as recited in claim 1 , further comprising a substrate plug that intersects only one surface of said substrate.

7. The electronic device as recited in claim 1 , wherein said integrated circuit is a first integrated circuit, and said heat spreader is located between said first integrated circuit and a second integrated circuit electrically connected to said first integrated circuit by said heat spreader via.

Assignments (9)
RELEASE OF SECURITY INTEREST Recorded Apr 15, 2022
From: CORTLAND CAPITAL MARKET SERVICES LLC
To: HILCO PATENT ACQUISITION 56, LLC; BELL SEMICONDUCTOR, LLC; BELL NORTHERN RESEARCH, LLC
Reel/Frame 059723/0382 →
SECURITY INTEREST Recorded Feb 1, 2018
From: HILCO PATENT ACQUISITION 56, LLC; BELL SEMICONDUCTOR, LLC; BELL NORTHERN RESEARCH, LLC
To: CORTLAND CAPITAL MARKET SERVICES LLC, AS COLLATERAL AGENT
Reel/Frame 045216/0020 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 17, 2017
From: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.; BROADCOM CORPORATION
To: BELL SEMICONDUCTOR, LLC
Reel/Frame 044886/0766 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Recorded Feb 3, 2017
From: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
To: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
Reel/Frame 041710/0001 →
PATENT SECURITY AGREEMENT Recorded Feb 11, 2016
From: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 037808/0001 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENT RIGHTS (RELEASES RF 032856-0031) Recorded Feb 2, 2016
From: DEUTSCHE BANK AG NEW YORK BRANCH, AS COLLATERAL AGENT
To: LSI CORPORATION; AGERE SYSTEMS LLC
Reel/Frame 037684/0039 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 3, 2015
From: LSI CORPORATION
To: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
Reel/Frame 035390/0388 →
PATENT SECURITY AGREEMENT Recorded May 8, 2014
From: LSI CORPORATION; AGERE SYSTEMS LLC
To: DEUTSCHE BANK AG NEW YORK BRANCH, AS COLLATERAL AGENT
Reel/Frame 032856/0031 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 20, 2010
From: BACHMAN, MARK A.; OSENBACH, JOHN W.; MERCHANT, SAILESH M.
To: LSI CORPORATION
Reel/Frame 024715/0896 →