IP Library › Granted Patent US 7,545,661
Granted Patent B2
US 7,545,661 · App. 11/876,118 · Granted Jun 9, 2009

Content addressable memory with twisted data lines

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Quick Facts
Patent No.
US 7,545,661
App. No.
11/876,118
Granted
Jun 9, 2009
Kind
B2
Abstract

A content addressable memory (CAM) device having CAM cells arranged in rows and columns. A plurality of pairs of data lines extend along respective columns of the CAM cells, each pair of data lines including at least one data line that is formed by conductive segments disposed in two different conductivity layers of the CAM device.

Claims (5)

1. A content addressable memory (CAM) device comprising:

a CAM array having a plurality of CAM cells that are arranged in rows and columns, and that are all identically oriented; and

a plurality of pairs of data twisted compare lines that extend along respective columns of the CAM cells, each pair of twisted compare lines including at least one twisted compare line that is formed by conductive segments disposed in two conductivity layers of the CAM device; and

a plurality of pairs of twisted bit lines that extend along respective columns of the CAM cells, each pair of twisted bit lines including at least one twisted bit line that is formed by conductive segments disposed in two conductivity layers of the CAM device.

2. The CAM device of claim 1 wherein the two different conductivity layers are metal layers.

Assignments (7)
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Recorded Feb 3, 2017
From: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
To: BROADCOM CORPORATION
Reel/Frame 041712/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 1, 2017
From: BROADCOM CORPORATION
To: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.
Reel/Frame 041706/0001 →
PATENT SECURITY AGREEMENT Recorded Feb 11, 2016
From: BROADCOM CORPORATION
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 037806/0001 →
CHANGE OF NAME Recorded Apr 16, 2015
From: NETLOGIC MICROSYSTEMS, INC.
To: NETLOGIC I LLC
Reel/Frame 035443/0824 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 16, 2015
From: NETLOGIC I LLC
To: BROADCOM CORPORATION
Reel/Frame 035443/0763 →
RELEASE OF SECURITY INTEREST Recorded Aug 30, 2011
From: SILICON VALLEY BANK
To: NETLOGIC MICROSYSTEMS, INC.; NETLOGIC MICROSYSTEMS INTERNATIONAL LIMITED; NETLOGIC MICROSYSTEMS CAYMANS LIMITED
Reel/Frame 026830/0141 →
SECURITY AGREEMENT Recorded Jul 17, 2009
From: NETLOGIC MICROSYSTEMS, INC.; NETLOGIC MICROSYSTEMS INTERNATIONAL LIMITED; NETLOGIC MICROSYSTEMS CAYMANS LIMITED
To: SILICON VALLEY BANK
Reel/Frame 022973/0710 →