US5789807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
On-chip power distribution for improved decoupling
Assignee: International Business Machines Corp
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Filing: 1997-11-26
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Granted: 1998-08-04
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Expires: 2017-11-26
Abstract
Abstract A specific structure which improves the decoupling capacitance for the power conductors in parallel metal layers of a semiconductor device. The power conductors are arranged so that conductors vertically adjacent to each other in the two outer of three metal layers are never connected to the same supply voltage terminal, but rather to opposing terminals. To improve current carrying capacity and reduce area, a power conductor in one outer plane is connected to a power conductor in the other outer plane which is displaced vertically and laterally from the first power conductor. The connection is made through special stitch conductors in the intervening plane. The resulting structure improves power supply decoupling for the finished device by providing significantly greater capacitance associated with the power distribution system of the chip.
Inventors
- 👤 Anthony Correale, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:17
CPC Classifications
H; H10; H10W; H10W20/00; H10W20/40; H10W20/41; H10W20/427
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
187 words
An integrated circuit comprising: first and second supply voltage terminals; semiconductor material; at least three electric conductor planes disposed in the semiconductor material; a plurality of parallel power conductors disposed within the outer two of three of the electric conductor planes, the power conductors arranged so that vertically adjacent parallel conductors are never connected to the same supply voltage terminal to provide substantial capacitance between the power conductors; a plurality of stitches disposed within the intervening plane, each of the plurality of stitches arranged to be perpendicular to the power conductors, each stitch connected at one end through a via in the semiconductor material to a power conductor in one of the outer two planes and at the other end through a via in the semiconductor material to a power conductor in the other of the outer two planes, the two power conductors connected to a stitch also being connected to the same supply voltage terminal; and a plurality of signal conductors disposed in each of the three electric conductor planes so as not to intersect or be in connection with a power conductor or a stitch.
Claim 2
Dependent Claim
187 words
An integrated circuit comprising: first and second supply voltage terminals; semiconductor material; at least three electric conductor planes disposed in the semiconductor material; a plurality of parallel power conductors disposed within the outer two of three of the electric conductor planes, the power conductors arranged so that vertically adjacent parallel conductors are never connected to the same supply voltage terminal to provide substantial capacitance between the power conductors; a plurality of stitches disposed within the intervening plane, each of the plurality of stitches arranged to be perpendicular to the power conductors, each stitch connected at one end through a via in the semiconductor material to a power conductor in one of the outer two planes and at the other end through a via in the semiconductor material to a power conductor in the other of the outer two planes, the two power conductors connected to a stitch also being connected to the same supply voltage terminal; and a plurality of signal conductors disposed in each of the three electric conductor planes so as not to intersect or be in connection with a power conductor or a stitch.
Claim 3
Dependent Claim
14 words
The integrated circuit of claim 1 wherein the semiconductor material contains an insulation layer.
Claim 4
Dependent Claim
22 words
The integrated circuit of claim 1 wherein the first supply voltage is a positive voltage and the second supply voltage is ground.
Claim 5
Dependent Claim
22 words
The integrated circuit of claim 2 wherein the first supply voltage is a positive voltage and the second supply voltage is ground.
Claim 6
Dependent Claim
122 words
An integrated circuit comprising: first and second supply voltage terminals; semiconductor material; at least three electric conductor planes disposed in the semiconductor material; a plurality of parallel power conductors disposed within the outer two of three of the electric conductor planes, the power conductors arranged so that vertically adjacent conductors are never connected to the same supply voltage terminal, each power conductor in one of the two outer planes connected to at least one vertically and laterally displaced parallel power conductor in the other of the two outer planes, the connection being made through the intervening electric conductor plane to provide substantial capacitance between the power conductors; and a plurality of signal conductors disposed in each of the three electric conductor planes.
Claim 7
Dependent Claim
122 words
An integrated circuit comprising: first and second supply voltage terminals; semiconductor material; at least three electric conductor planes disposed in the semiconductor material; a plurality of parallel power conductors disposed within the outer two of three of the electric conductor planes, the power conductors arranged so that vertically adjacent conductors are never connected to the same supply voltage terminal, each power conductor in one of the two outer planes connected to at least one vertically and laterally displaced parallel power conductor in the other of the two outer planes, the connection being made through the intervening electric conductor plane to provide substantial capacitance between the power conductors; and a plurality of signal conductors disposed in each of the three electric conductor planes.
Claim 8
Dependent Claim
14 words
The integrated circuit of claim 5 wherein the semiconductor material contains an insulation layer.
Claim 9
Dependent Claim
22 words
The integrated circuit of claim 5 wherein the first supply voltage is a positive voltage and the second supply voltage is ground.
Claim 10
Dependent Claim
22 words
The integrated circuit of claim 6 wherein the first supply voltage is a positive voltage and the second supply voltage is ground.
References Cited (Backward Citations)
US3777221A
Cited
US4623911A
Cited
US4866507A
Cited
US4811082A
Cited
US4947229A
Cited
US4785135A
Cited
US5081561A
Cited
US5101323A
Cited
US5391921A
Cited
US5063432A
Cited
US5111271A
Cited
US5468997A
Cited
US5165055A
Cited
US5208725A
Cited
US5285018A
Cited
US5459355A
Cited
US5410107A
Cited
US5598029A
Cited
US5446311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-08-03 | 2002-02-02 | 2002-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-03 | 2006-02-02 | 2006-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-03 | 2010-02-02 | 2010-08-04 | $7700.00 | Window Closed / Lapsed |