WO2006095655A1 - 半導体集積回路 - Google Patents
半導体集積回路 Download PDFInfo
- Publication number
- WO2006095655A1 WO2006095655A1 PCT/JP2006/304122 JP2006304122W WO2006095655A1 WO 2006095655 A1 WO2006095655 A1 WO 2006095655A1 JP 2006304122 W JP2006304122 W JP 2006304122W WO 2006095655 A1 WO2006095655 A1 WO 2006095655A1
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- WO
- WIPO (PCT)
- Prior art keywords
- pattern
- wiring
- dummy
- semiconductor integrated
- patterns
- Prior art date
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- 239000004065 semiconductor Substances 0.000 title claims description 53
- 238000007667 floating Methods 0.000 claims description 28
- 238000000034 method Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 description 8
- 230000003071 parasitic effect Effects 0.000 description 6
- 238000012937 correction Methods 0.000 description 5
- 238000000605 extraction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/0203—Particular design considerations for integrated circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/31051—Planarisation of the insulating layers
- H01L21/31053—Planarisation of the insulating layers involving a dielectric removal step
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/7684—Smoothing; Planarisation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/5222—Capacitive arrangements or effects of, or between wiring layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/528—Geometry or layout of the interconnection structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Definitions
- the present invention relates to parasitic element extraction for extracting parasitic elements generated during automatic placement and routing in semiconductor circuit design.
- CMP Chemical Mechanical Polishing
- a semiconductor substrate on which a circuit is laid out is completely flattened.
- the present invention relates to a semiconductor integrated circuit in which a dummy pattern is arranged at the time of LSI layout so that it can be processed.
- a semiconductor device with high density and high integration often has a multilayer wiring structure in which a plurality of wiring layers separated by an insulating film are provided on a substrate.
- Each wiring layer constituting such a semiconductor device needs to be finely patterned in the exposure process in the manufacturing process.
- the surface of the substrate on which the pattern mask is placed has irregularities and the flatness is low, the resolution of the exposure process is lowered and a fine pattern cannot be formed.
- CMP if there is a large difference in the degree of wiring congestion in a certain wiring layer, it is difficult to completely planarize the substrate surface.
- dummy wiring or called dummy metal
- area ratio aperture ratio
- Patent Document 1 describes that the dummy pattern itself has a cross shape, and the length of the protruding portion of the cross shape can be arbitrarily changed. According to this technology, the additional capacitance generated in the existing wiring pattern is almost uniform regardless of where the existing wiring pattern formed in the upper or lower wiring layer is located relative to these cross-shaped dummy patterns.
- the wiring interval between the dummy pattern and wiring pattern can be set to a predetermined value by changing the length of the cross-shaped protruding part arbitrarily. Thus, it is possible to make the wiring intervals uniform.
- Patent Document 1 JP-A-6-61230 (Page 3, Fig. 1)
- Patent Document 2 JP 2002-231815 A (Page 5, Fig. 1)
- Patent Document 3 Japanese Patent Laid-Open No. 2003-282569 (Page 9, Figure 1)
- the additional capacitance generated in the existing wiring pattern in the upper or lower wiring layer due to the presence of the dummy pattern can be made almost uniform, but the dummy pattern has a cross shape. Therefore, the amount of data increases. For example, for a rectangular dummy pattern that can be formed with 4 vertices, if the cross shape is expressed in vertex coordinates, it becomes 12 vertices. Because there are more dummy patterns than normal signal wiring patterns, the cross-shaped dummy pattern has more than double the data volume compared to the rectangular dummy pattern. As the data size increases, it becomes difficult to handle even with computer processing, so it is desirable to have a small amount of data.
- the dummy patterns formed in the two wiring layers adjacent to each other in the vertical direction are arranged so as not to overlap each other, so that they are attached to these dummy patterns.
- the additional capacity is not large.
- the area where dummy patterns can be placed is limited, even if the number of signal wiring patterns is small, if the wiring patterns are arranged alternately between different layers, dummy patterns are placed. If this is not possible and the aperture ratio cannot be satisfied, there will be a problem.
- Patent Document 3 the separation distance from the dummy pattern is limited depending on the type of the signal wiring pattern.
- the additional capacitance between the wiring pattern arranged in two adjacent wiring layers and the dummy pattern is not considered, and the additional capacitance generated between different layers becomes a problem.
- An object of the present invention is to reduce the added calacity that a dummy pattern is generated in the wiring pattern of the same wiring layer, while the dummy pattern is generated in the wiring pattern of the wiring layer adjacent to the upper layer or the lower layer of the wiring layer.
- the fluctuation of the additional capacity to be It is to unify.
- the wiring directions of a plurality of dummy patterns are arranged to be inclined at 45 degrees or the like with respect to the wiring direction of a wiring pattern such as a signal wiring pattern.
- a plurality of actual pattern groups having a plurality of wiring pattern forces for connecting circuits and elements are arranged in each wiring layer of the plurality of wiring layers, and the actual pattern groups are arranged.
- the plurality of dummy patterns have a reference direction that is the direction of one wiring pattern included in the plurality of wiring patterns. It is arranged in a direction that makes an angle of 45 degrees.
- the present invention provides the semiconductor integrated circuit, wherein a plurality of dummy patterns adjacent to any one of the plurality of wiring patterns among the plurality of dummy patterns have a wiring pattern force adjacent thereto, and the like. It is characterized by being spaced apart.
- each of the plurality of dummy patterns is a rectangle.
- the plurality of dummy patterns include a plurality of rectangles having different sizes.
- a plurality of dummy patterns arranged in each of two wiring layers adjacent in the vertical direction among the plurality of wiring layers intersect at an angle of 90 degrees. It is characterized by.
- the present invention provides the semiconductor integrated circuit, wherein the dummy pattern includes a potential fixing dummy pattern connected to a fixed potential and a floating dummy pattern not connected to the fixed potential, and the potential fixing dummy pattern Of these, a part is arranged adjacent to the wiring pattern.
- the floating dummy pattern occupies 50% or more of the number of the plurality of dummy patterns.
- the present invention provides the semiconductor integrated circuit, wherein the plurality of dummy patterns are fixed electric power. And a floating dummy pattern not connected to the fixed potential, and a part of the floating dummy pattern is arranged adjacent to the wiring pattern, and the wiring dummy pattern is connected to the wiring pattern. A dummy pattern force adjacent to a floating dummy pattern arranged adjacent to the pattern is the potential fixing dummy pattern.
- the fixed potential is a power supply potential or a ground potential.
- the semiconductor integrated circuit of the present invention a region where a plurality of wiring pattern forces for connecting a circuit and an element are also arranged in each wiring layer of the plurality of wiring layers, and the actual pattern group is not arranged
- the plurality of dummy patterns are defined with respect to the reference direction when the direction of one wiring pattern included in the plurality of wiring patterns is a reference direction.
- each wiring layer of the plurality of wiring layers is provided with a plurality of actual pattern groups having a plurality of wiring pattern forces for connecting circuits and elements, and the actual pattern groups are not disposed.
- the plurality of dummy patterns are defined with respect to the reference direction when the direction of one wiring pattern included in the plurality of wiring patterns is a reference direction.
- a plurality of inclined dummy patterns inclined in a direction forming a predetermined angle, and the plurality of inclined dummy patterns of the plurality of inclined dummy patterns are arranged at an equal distance from one wiring pattern of the same wiring layer. It is characterized by being beaten!
- the present invention includes a plurality of dummy patterns that are inclined by, for example, an angle of 45 degrees with respect to a reference direction defined as the direction of one arbitrary wiring pattern.
- the patterns extend parallel to each other.
- the area where the wiring pattern intersects with the inclined dummy pattern of 45 degrees or the like has the same crossing area no matter where the wiring pattern is formed in the adjacent wiring layer. Become. Therefore, the increase in capacitance caused by the inclined dummy pattern of 45 degrees or the like with respect to the wiring pattern of the adjacent wiring layer is uniform regardless of the position of the wiring pattern.
- the inclination dummy pattern such as 45 degrees is necessary because it can be formed into a rectangular shape with a small number of vertices, such as the number of vertices less than 12 vertices.
- the dummy pattern force is inclined at an angle of 5 degrees or the like, when these inclined dummy patterns are located in the vicinity of the wiring pattern of the same wiring layer, the dummy pattern is changed to the wiring pattern as before.
- the area of the portion where these inclined dummy patterns are close to the wiring pattern is reduced, and these inclined dummy patterns are generated in the wiring pattern.
- the additional capacity to be reduced is small.
- the aperture ratio can be set to a desired value by arranging a plurality of inclined dummy patterns.
- the unit that the dummy pattern arranged on the same wiring layer as the wiring pattern exerts on the wiring pattern The additional capacity per length is made uniform.
- the inclined dummy pattern of 45 degrees or the like is arranged so as to form an angle of 90 degrees in relation to the dummy patterns of different wiring layers.
- the crossing area of the dummy patterns intersecting between the line layers is constant, and the additional capacitance generated by the dummy patterns of different wiring layers can be made uniform.
- the dummy pattern adjacent to the wiring pattern is connected to a fixed potential, the influence of the coupling capacitance of other wiring pattern forces can be shielded. Further, since the floating dummy pattern is provided in addition to the dummy pattern arranged adjacent to the wiring pattern, it is possible to reduce the number of dummy patterns that have to be removed along with the layout correction.
- the floating dummy pattern is used as the dummy pattern arranged adjacent to the wiring pattern in the present invention, the number of dummy patterns that must be removed along with the layout correction can be suppressed.
- the floating dummy Since the pattern is interposed between the potential fixing dummy pattern connected to the fixed potential and the wiring pattern, the potential fixing dummy pattern is separated from the wiring pattern and the additional capacitor is connected in series. The additional capacity given to the wiring pattern by the fixed dummy pattern can be reduced.
- the additional capacitance generated between the wiring pattern and the dummy pattern formed in the same wiring layer can be reduced, and the dummy pattern and the wiring layer can be reduced. Can be made uniform, and the calculation accuracy of the parasitic capacitance extraction can be improved.
- the positions of the plurality of dummy patterns in the same wiring layer are positioned so that the wiring pattern force is also equidistant from each other. It is possible to equalize the additional capacity.
- a floating dummy pattern is provided which can obtain a shield effect by a dummy pattern of a fixed potential adjacent to the wiring pattern, reduce the influence of crosstalk, and can easily peel off the wiring. Thus, rewiring can be facilitated.
- the potential fixing dummy pattern is arranged with the floating dummy pattern sandwiched between the wiring patterns, the additional capacitance given to the wiring pattern by the potential fixing dummy pattern can be reduced, and parasitic capacitance extraction can be performed. The calculation accuracy can be increased.
- FIG. 1 is a diagram showing a main configuration of a semiconductor integrated circuit according to a first embodiment of the present invention.
- FIG. 2 is a diagram showing a modification of the semiconductor integrated circuit, showing a state in which the dummy pattern is divided into small pieces.
- FIG. 3 is a diagram showing a turn arrangement relationship between two dummy layers in the upper and lower adjacent wiring layers in the semiconductor integrated circuit.
- FIG. 4 is a diagram showing a main configuration of a semiconductor integrated circuit according to a second embodiment of the present invention.
- the rectangular dummy pattern 1 is the signal wiring pattern in the same wiring layer as the two signal wiring patterns 2 of the plurality of wiring pattern groups (actual pattern groups) constituting the semiconductor integrated circuit. 2 is not arranged, and is arranged in a vacant area and is inclined at approximately 45 degrees with respect to the signal wiring pattern 2 and arranged in parallel and at equal intervals.
- the dummy pattern and the signal wiring pattern 3 are wirings formed in a wiring layer adjacent to the wiring layer of the dummy pattern 1 or the signal wiring pattern 2, for example, a wiring layer located immediately above the wiring layer, Part of In FIG.
- a dummy pattern 12 is a dummy pattern in which the dummy pattern 1 of FIG. 1 is divided into small pieces.
- the plurality of dummy patterns 1 and dummy patterns 12 adjacent to the signal wiring pattern 2 are each arranged apart from the signal wiring pattern 2 by a set distance S1.
- an angle of approximately 45 degrees is formed between the two signal wiring patterns 2 shown in FIG. 1 or FIG. 2 with respect to the direction (reference direction) of the signal wiring pattern 2 (wiring pattern). Place dummy pattern 1 or 12 in the direction to be formed.
- the signal wiring pattern 3 (second wiring) wired to a wiring layer (second wiring layer) different from the wiring layer (first wiring layer) on which the dummy pattern 1 is arranged.
- the dummy pattern 1 Since the dummy pattern 1 is also arranged at approximately 45 degrees with respect to the signal wiring pattern), the portion of the dummy pattern 1 that intersects the signal wiring pattern 3 is regularly arranged along the signal wiring pattern 3, and this Thus, the additional capacitance exerted by the dummy pattern 1 on the signal wiring pattern 3 is constant with respect to the unit length of the signal wiring pattern 3 regardless of the position of the signal wiring pattern 3.
- the signal wiring pattern 3 shown in FIG. 1 is in the horizontal direction, since the dummy pattern 1 is arranged at approximately 45 degrees with respect to the signal wiring pattern 2, the same is true even if the signal wiring pattern 3 is in the vertical direction.
- the increment of the additional capacity per unit length can be made uniform. Also for the signal wiring pattern 2, since a plurality of adjacent dummy patterns 1 or 12 are spaced apart by the same distance of the set distance S1, the additional capacity per unit length of the additional capacity by the dummy pattern 1 or 12 Incremental amount can be made uniform.
- the force indicating the configuration in which the dummy pattern 1 is inclined at about 45 degrees with respect to the signal wiring patterns 2 and 3 is not shown, but this is not shown, but at least two dummy If dummy pattern 1 forms a predetermined angle with respect to signal wiring pattern 2 to the extent that pattern 1 and one signal wiring pattern 3 intersect, the two dummy patterns 1 (multiple inclined dummy patterns) ), One signal wiring pattern 3 (second signal wiring pattern) intersects two dummy patterns 1 and one signal wiring pattern 3 in the same shape regardless of their positions. Therefore, the increment of the additional capacity per unit length can be made uniform, as in the case where the tilt angle is about 45 degrees. However, in this case, the increment of the additional capacity per unit length differs depending on whether the direction of the signal wiring pattern 3 is the horizontal direction or the vertical direction.
- dummy pattern 1 is arranged adjacent to signal wiring pattern 2 in the same layer at an angle of approximately 45 degrees, dummy pattern 1 is orthogonal or parallel to signal wiring pattern 2. It is a little farther than the case where it is arranged in the direction. That is, if they are arranged orthogonally or in parallel, the force that the two vertices of dummy pattern 1 are equidistant from signal wiring pattern 2 in the vicinity of signal wiring pattern 2 By tilting dummy pattern 1 by approximately 45 degrees Since one vertex is left and the other vertex is separated from the signal wiring pattern 2, the dummy pattern 1 is slightly separated by this amount. As a result, the additional capacitance generated in the signal wiring pattern 2 can be reduced.
- a dummy pattern 12 in which the dummy pattern 1 is divided into small pieces is arranged.
- the additional capacitance when the dummy pattern 12 is placed next to the signal wiring pattern 2 in the same layer depends on the size of the dummy pattern.
- the additional capacitance for the wiring pattern 2 can be reduced.
- FIG. 3 shows a plurality of inclined dummy patterns in the wiring layer in which the signal wiring pattern 3 is formed so as to intersect with the inclined dummy pattern 1 formed in the lower wiring layer at an angle of approximately 90 degrees.
- a configuration in which 13 is arranged is shown.
- the plurality of upper dummy patterns 13 are arranged with an inclination of approximately 45 degrees in the direction opposite to the inclination direction of the plurality of lower dummy patterns 1 with the wiring direction of the signal wiring pattern 2 as the reference direction. Has been.
- the force indicating the layout relationship of the plurality of dummy patterns 1 and 13 in the two adjacent wiring layers As for the other wiring layers, an inclined dummy pattern is formed between the two adjacent upper and lower wiring layers. Each dummy pattern is arranged so that they intersect each other at an angle of approximately 90 degrees. Therefore, the area where two or more dummy patterns 1 formed on one wiring layer and a plurality of dummy patterns 13 formed on other wiring adjacent to the wiring layer overlap each other between two wiring layers adjacent in the vertical direction is , Become constant. As a result, the additional capacitance generated between the dummy patterns in the upper and lower adjacent wiring layers is the same between any two wiring layers and is made uniform. Therefore, it is possible to increase the parasitic element extraction system.
- the dummy patterns 1 and 13 that extend long have been described.
- the dummy pattern 12 of a small piece also has an inclined dummy pattern between two adjacent upper and lower wiring layers.
- the intersection angle may be set to approximately 90 degrees.
- the shapes of the dummy patterns 1, 12, and 13 are rectangular.
- the present invention is not limited to a rectangle. Even when the shape of the dummy pattern is not rectangular, if a plurality of non-rectangular dummy patterns are regularly arranged at an inclination of approximately 45 degrees with respect to the signal wiring pattern, the dummy patterns and the dummy patterns are arranged.
- the crossing area with the signal wiring pattern formed in another wiring layer adjacent to the wiring layer of the pattern is the same area regardless of the position of the signal wiring pattern.
- the capacity increment given by the dummy pattern can be made uniform regardless of the position of the signal wiring pattern in the adjacent wiring layer.
- the adjacent plurality of dummy patterns 13 are equal to the signal wiring pattern 3 in the same wiring layer. If they are arranged so as to be separated by the set distance S1, the amount of increase per unit length of the additional capacitance with respect to the signal wiring pattern 3 of the same wiring layer due to the presence of these dummy patterns 13 can be made uniform. However, when the shape of the dummy pattern 13 becomes complicated, the data amount of the inclined dummy pattern 13 increases.
- dummy pattern 11 is a dummy pattern connected to a fixed potential such as a power supply or ground
- dummy pattern 12 is not electrically connected to any of a plurality of wiring patterns on a semiconductor integrated circuit including signal wiring pattern 2.
- the floating pattern and the connection pattern 5 are wiring patterns that connect the dummy patterns 11, and these dummy patterns 11 and 12 are arranged in a region without the signal wiring pattern 2 for adjusting the area ratio.
- a dummy pattern 11 connected to the power source or the ground is arranged adjacent to the signal wiring pattern 2 in FIG. In this way, there is almost no capacitive coupling that occurs via the dummy pattern 12 between the two signal wiring patterns 2.
- the so-called shielding effect works and the crosstalk phenomenon can be suppressed.
- at least one dummy pattern 11 arranged adjacent to the signal wiring pattern 2 does not need to be connected to a fixed potential, and at least one dummy pattern 11 is not connected to the fixed potential (not shown). However, for the one dummy pattern 11, the shielding effect of the present invention can be obtained.
- the dummy pattern 12 shows a state in which all are floating dummy patterns.
- the dummy pattern to be peeled off can be limited to only the portions that require layout.
- layout correction occurs, rewiring is easier if the number of dummy patterns 12 that must be removed is minimized, so 50% or more of the dummy patterns 12 are floating dummy patterns. Hope there is.
- the shielding effect is not shown.
- the additional capacitance generated in the signal wiring pattern 2 can be made smaller than in the state shown in FIG. The reason for this is that the additional capacity decreases due to the separation of the dummy pattern 12 connected to the power supply or ground with respect to the signal wiring pattern 2, and the dummy pattern 12 and the signal wiring whose potential is fixed to the power supply or ground. This is because the floating dummy pattern 11 is interposed between the pattern 12 and the capacitance is connected in series, so that the additional capacitance can be further reduced.
- the dummy pattern is arranged in an inclined state with respect to the actual wiring pattern, such as approximately 45 degrees, so that the additional capacitance generated in the wiring pattern is reduced.
- the additional capacitance generated between adjacent wiring layers can be made uniform, timing convergence can be improved, and LSI design with severe timing constraints can be used. Useful for semiconductor integrated circuits.
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
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- Design And Manufacture Of Integrated Circuits (AREA)
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007507085A JPWO2006095655A1 (ja) | 2005-03-11 | 2006-03-03 | 半導体集積回路 |
US11/883,539 US7541625B2 (en) | 2005-03-11 | 2006-03-03 | Semiconductor integrated circuit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005069696 | 2005-03-11 | ||
JP2005-069696 | 2005-03-11 |
Publications (1)
Publication Number | Publication Date |
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WO2006095655A1 true WO2006095655A1 (ja) | 2006-09-14 |
Family
ID=36953254
Family Applications (1)
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PCT/JP2006/304122 WO2006095655A1 (ja) | 2005-03-11 | 2006-03-03 | 半導体集積回路 |
Country Status (4)
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US (1) | US7541625B2 (ja) |
JP (1) | JPWO2006095655A1 (ja) |
CN (1) | CN100481347C (ja) |
WO (1) | WO2006095655A1 (ja) |
Cited By (4)
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US7709962B2 (en) * | 2006-10-27 | 2010-05-04 | Infineon Technologies Ag | Layout structure having a fill element arranged at an angle to a conducting line |
JP2014033047A (ja) * | 2012-08-02 | 2014-02-20 | Nikon Corp | 固体撮像装置、及び撮像装置 |
JP2018046116A (ja) * | 2016-09-13 | 2018-03-22 | 株式会社東芝 | 半導体装置 |
JP7357582B2 (ja) | 2020-04-20 | 2023-10-06 | 住友電気工業株式会社 | フレキシブルプリント配線板 |
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JP2010267933A (ja) | 2009-05-18 | 2010-11-25 | Elpida Memory Inc | ダミーパターンの配置方法及びダミーパターンを備えた半導体装置 |
JP2012212697A (ja) * | 2009-08-21 | 2012-11-01 | Panasonic Corp | 半導体装置 |
CN102270625A (zh) * | 2010-06-04 | 2011-12-07 | 中芯国际集成电路制造(上海)有限公司 | 一种虚拟金属填充结构及带虚拟金属填充物的平面电感器 |
US11334703B2 (en) * | 2017-06-29 | 2022-05-17 | Taiwan Semiconductor Manufacturing Co., Ltd. | Integrated circuit layouts with fill feature shapes |
CN109240000B (zh) * | 2018-11-14 | 2024-01-26 | 惠科股份有限公司 | 一种扇出线结构及显示装置 |
CN112366203B (zh) * | 2020-10-23 | 2023-01-03 | 福建省晋华集成电路有限公司 | 图案布局以及其形成方法 |
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JPH0661230A (ja) | 1992-05-28 | 1994-03-04 | Nec Corp | 半導体集積回路装置 |
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- 2006-03-03 WO PCT/JP2006/304122 patent/WO2006095655A1/ja active Application Filing
- 2006-03-03 US US11/883,539 patent/US7541625B2/en not_active Expired - Fee Related
- 2006-03-03 CN CNB2006800063485A patent/CN100481347C/zh not_active Expired - Fee Related
- 2006-03-03 JP JP2007507085A patent/JPWO2006095655A1/ja not_active Withdrawn
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Cited By (4)
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US7709962B2 (en) * | 2006-10-27 | 2010-05-04 | Infineon Technologies Ag | Layout structure having a fill element arranged at an angle to a conducting line |
JP2014033047A (ja) * | 2012-08-02 | 2014-02-20 | Nikon Corp | 固体撮像装置、及び撮像装置 |
JP2018046116A (ja) * | 2016-09-13 | 2018-03-22 | 株式会社東芝 | 半導体装置 |
JP7357582B2 (ja) | 2020-04-20 | 2023-10-06 | 住友電気工業株式会社 | フレキシブルプリント配線板 |
Also Published As
Publication number | Publication date |
---|---|
US20080164496A1 (en) | 2008-07-10 |
US7541625B2 (en) | 2009-06-02 |
CN101128921A (zh) | 2008-02-20 |
JPWO2006095655A1 (ja) | 2008-08-14 |
CN100481347C (zh) | 2009-04-22 |
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