WO2005122028A3 - Local preferred direction architecture, tools, and apparatus - Google Patents

Local preferred direction architecture, tools, and apparatus Download PDF

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Publication number
WO2005122028A3
WO2005122028A3 PCT/US2005/019361 US2005019361W WO2005122028A3 WO 2005122028 A3 WO2005122028 A3 WO 2005122028A3 US 2005019361 W US2005019361 W US 2005019361W WO 2005122028 A3 WO2005122028 A3 WO 2005122028A3
Authority
WO
WIPO (PCT)
Prior art keywords
preferred direction
lpd
region
local preferred
tools
Prior art date
Application number
PCT/US2005/019361
Other languages
French (fr)
Other versions
WO2005122028A2 (en
Inventor
Asmus Hetzel
Anish Malhotra
Akira Fujimura
Etienne Jacques
Jon Frankle
David S Harrison
Heath Feather
Alexandre Matveev
Roger King
Original Assignee
Cadence Design Systems Inc
Asmus Hetzel
Anish Malhotra
Akira Fujimura
Etienne Jacques
Jon Frankle
David S Harrison
Heath Feather
Alexandre Matveev
Roger King
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cadence Design Systems Inc, Asmus Hetzel, Anish Malhotra, Akira Fujimura, Etienne Jacques, Jon Frankle, David S Harrison, Heath Feather, Alexandre Matveev, Roger King filed Critical Cadence Design Systems Inc
Priority to EP05771286A priority Critical patent/EP1763805A4/en
Priority to JP2007515561A priority patent/JP2008502152A/en
Publication of WO2005122028A2 publication Critical patent/WO2005122028A2/en
Publication of WO2005122028A3 publication Critical patent/WO2005122028A3/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/30—Circuit design
    • G06F30/39—Circuit design at the physical level
    • G06F30/394—Routing

Abstract

Some embodiments of the invention provide a Local Preferred Direction (LPD) wiring model for use with one or more EDA tools. An LPD wiring model allows at least one wiring layer (200) to have a set of regions (205, 210, 215) that each has a different preferred direction (-45°, 0°, 90°) than the particular wiring layer. In addition, each region (205, 210, 215) has a local preferred direction (-45°, 0°, 90°) that differs from the local preferred direction of at least one other region in the set. Furthermore, at least two regions have two different polygonal shapes and no region in the set encompasses another region in the set. Some embodiments also provide a Graphical User Interface (GUI) that facilitates a visual presentation of an LPD design layout and provides tools to create and manipulate LPD regions in a design layout.
PCT/US2005/019361 2004-06-04 2005-06-04 Local preferred direction architecture, tools, and apparatus WO2005122028A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP05771286A EP1763805A4 (en) 2004-06-04 2005-06-04 Local preferred direction architecture, tools, and apparatus
JP2007515561A JP2008502152A (en) 2004-06-04 2005-06-04 Local preferred architecture, tools, and equipment

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US57743404P 2004-06-04 2004-06-04
US60/577,434 2004-06-04
US11/005,316 2004-12-06
US11/005,316 US7441220B2 (en) 2000-12-07 2004-12-06 Local preferred direction architecture, tools, and apparatus

Publications (2)

Publication Number Publication Date
WO2005122028A2 WO2005122028A2 (en) 2005-12-22
WO2005122028A3 true WO2005122028A3 (en) 2006-11-16

Family

ID=35503798

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/019361 WO2005122028A2 (en) 2004-06-04 2005-06-04 Local preferred direction architecture, tools, and apparatus

Country Status (4)

Country Link
US (2) US7441220B2 (en)
EP (1) EP1763805A4 (en)
JP (2) JP2008502152A (en)
WO (1) WO2005122028A2 (en)

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Also Published As

Publication number Publication date
US20050229134A1 (en) 2005-10-13
US7441220B2 (en) 2008-10-21
US8166442B2 (en) 2012-04-24
WO2005122028A2 (en) 2005-12-22
EP1763805A2 (en) 2007-03-21
US20090024977A1 (en) 2009-01-22
JP2013077844A (en) 2013-04-25
JP2008502152A (en) 2008-01-24
EP1763805A4 (en) 2007-12-12

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