US6948146B2
Expired / Lapsed
US
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Simplified tiling pattern method
Assignee: International Business Machines Corp
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Filing: 2003-01-09
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Granted: 2005-09-20
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Expires: 2023-01-09
Abstract
Abstract The invention provides a design and an integrated circuit having a substantially uniform density and electrical characteristics between parts of the IC that are angled at 45 degrees relative to one another. In particular, the invention provides fill tiling patterns oriented substantially uniformly to electrical structures of either orthogonal or 45 degree angle orientation.
Inventors
- 👤 Robert J. Allen
- 👤 John M. Cohn
- 👤 Peter A. Habitz
- 👤 William C. Leipold
- 👤 Ivan L. Wemple
- 👤 Paul S. Zuchowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:01
CPC Classifications
H; H10; H10W; H10W20/00; H10W20/40; H10W20/41; H10W20/43; G; G06; G06F; G06F30/00; G06F30/30; G06F30/39
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
87 words
An IC including at least one layer having a first electrical structure angled at 45 degrees relative to a second electrical structure, wherein tiles in a tiling pattern in combination with the first and second electrical structures provide a substantially uniform density and electrical characteristics across a respective layer of the IC, and further wherein the tiles have a first edge segment oriented at 22.5 degrees relative to the first electrical structure and a second edge segment oriented at 22.5 degrees relative to the second electrical structure.
Claim 2
Dependent Claim
87 words
An IC including at least one layer having a first electrical structure angled at 45 degrees relative to a second electrical structure, wherein tiles in a tiling pattern in combination with the first and second electrical structures provide a substantially uniform density and electrical characteristics across a respective layer of the IC, and further wherein the tiles have a first edge segment oriented at 22.5 degrees relative to the first electrical structure and a second edge segment oriented at 22.5 degrees relative to the second electrical structure.
Claim 3
Dependent Claim
62 words
The IC of claim 1 , wherein the first second electrical structure is provided orthogonally relative to a plurality of electrical structures of the IC, and the first electrical structure is provided at a 45 degree angle to the plurality of electrical structures of the IC, wherein a size and orientation of each tiling pattern is constant within a respective tiled area.
Claim 4
Dependent Claim
16 words
The IC of claim 2 , wherein the first and second electrical structures are wire segments.
Claim 5
Dependent Claim
14 words
The IC of claim 2 , wherein the tiling pattern consists of square tiles.
Claim 6
Dependent Claim
35 words
IC of claim 2 , wherein the tiling pattern consists of octagonal tiles with a third edge segment parallel to the first electrical structure and a fourth edge segment parallel to the second electrical structure.
Claim 7
Dependent Claim
39 words
The IC of claim 2 , wherein the electrical structure between tiles in the tile pattern and the first electrical structure is identical to the electrical interaction between the tiles in the tile pattern and the second electrical structure.
Claim 8
Dependent Claim
15 words
The IC claim 1 , wherein the first and second electrical structures are wire segments.
Claim 9
Dependent Claim
13 words
The IC claim 1 , wherein the tiling pattern consists of square tiles.
Claim 10
Dependent Claim
36 words
The IC of claim 1 , wherein the tiling pattern consists of octagonal tiles with a third edge segment parallel to the first electrical structure and a fourth edge segment parallel to the second electrical structure.
Claim 11
Dependent Claim
40 words
The IC of claim 1 , wherein the electrical interaction between the tiles in the tile pattern and the first electrical structure, is identical to the electrical interaction between the tiles in the tile pattern and the second electrical structure.
Claim 12
Dependent Claim
88 words
An IC design including at least one layer having a first electrical structure angled at 45 degrees relative to a second electrical structure, wherein tiles in a tiling pattern in combination with the first and second electrical structures provide a substantially uniform density and electrical characteristics across a respective layer of the IC, and further wherein the tiles have a first edge segment oriented at 22.5 degrees relative to the first electrical structure and a second edge seats oriented at 22.5 degrees relative to the second electrical structure.
Claim 13
Dependent Claim
88 words
An IC design including at least one layer having a first electrical structure angled at 45 degrees relative to a second electrical structure, wherein tiles in a tiling pattern in combination with the first and second electrical structures provide a substantially uniform density and electrical characteristics across a respective layer of the IC, and further wherein the tiles have a first edge segment oriented at 22.5 degrees relative to the first electrical structure and a second edge seats oriented at 22.5 degrees relative to the second electrical structure.
Claim 14
Dependent Claim
55 words
The IC design of claim 11 , wherein the first electrical structure is provided orthogonally relative to other structures of the IC, and the second electrical structure is provided at a 45 degree angle to other structures of IC, wherein a size and orientation of each tiling pattern is constant within a respective tiled area.
Claim 15
Dependent Claim
17 words
The IC design of claim 12 , wherein the first and second electrical structures are wire segments.
Claim 16
Dependent Claim
15 words
The IC design of claim 12 , wherein the tiling pattern consists of square tiles.
Claim 17
Dependent Claim
37 words
The IC design of claim 12 , wherein the tiling pattern consists of octagonal tiles with a third edge segment parallel to the first electrical structure and a fourth edge segment parallel to the second electrical structure.
Claim 18
Dependent Claim
41 words
The IC design of claim 12 , wherein the electrical interaction between the tiles in the tile pattern and the first electrical structure is identical to the electrical interaction between the tiles in the tile pattern and the second electrical structure.
Claim 19
Dependent Claim
17 words
The IC design of claim 11 , wherein the first and second electrical structures are wire segments.
Claim 20
Dependent Claim
15 words
The IC design of claim 11 , wherein the tiling pattern consists of square tiles.
Claim 21
Dependent Claim
37 words
The IC design of claim 11 , wherein the tiling pattern consists of octagonal tiles with a third edge segment parallel to the first electrical structure and a fourth edge segment parallel to the second electrical structure.
Claim 22
Dependent Claim
41 words
The IC design of claim 11 , wherein the electrical interaction between the tiles in the tile pattern and the first electrical structure, is identical to the electrical interaction between the tiles in the tile pattern and the second electrical structure.
Claim 23
Independent Claim
79 words
A method of designing tiling patterns for an IC including at least one layer having a first electrical structure angled at 45 degrees relative to a second electrical structure, comprising the step of: applying a tiling pattern to the layer of the IC, the tiling pattern comprising square tiles having a first edge segment oriented at 22.5 degrees relative to the first electrical structure and a second edge seats oriented at 22.5 degrees relative to the second electrical structure.
Claim 24
Independent Claim
79 words
A method of designing tiling patterns for an IC including at least one layer having a first electrical structure angled at 45 degrees relative to a second electrical structure, comprising the step of: applying a tiling pattern to the layer of the IC, the tiling pattern comprising square tiles having a first edge segment oriented at 22.5 degrees relative to the first electrical structure and a second edge seats oriented at 22.5 degrees relative to the second electrical structure.
Claim 25
Independent Claim
94 words
A method of designing tiling patterns for an IC including at least one layer having a first electrical structure angled at 45 degrees relative to a second electrical structure, comprising the step of: applying a tiling pattern to the layer of the IC, the tiling pattern comprising octagonal tiles with one side parallel to the first electrical structure, a second side parallel to the second electrical structure, a third side oriented at 22.5 degrees relative to the first electrical structure and a fourth side oriented at 22.5 degrees relative to the second electrical structure.
Claim 26
Independent Claim
94 words
A method of designing tiling patterns for an IC including at least one layer having a first electrical structure angled at 45 degrees relative to a second electrical structure, comprising the step of: applying a tiling pattern to the layer of the IC, the tiling pattern comprising octagonal tiles with one side parallel to the first electrical structure, a second side parallel to the second electrical structure, a third side oriented at 22.5 degrees relative to the first electrical structure and a fourth side oriented at 22.5 degrees relative to the second electrical structure.
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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) | 2008-09-19 | 2009-03-21 | 2009-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-09-19 | 2013-03-21 | 2013-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-09-19 | 2017-03-21 | 2017-09-20 | $7700.00 | Window Closed / Lapsed |