WO2010001507A1 - 半導体集積回路装置 - Google Patents
半導体集積回路装置 Download PDFInfo
- Publication number
- WO2010001507A1 WO2010001507A1 PCT/JP2009/000801 JP2009000801W WO2010001507A1 WO 2010001507 A1 WO2010001507 A1 WO 2010001507A1 JP 2009000801 W JP2009000801 W JP 2009000801W WO 2010001507 A1 WO2010001507 A1 WO 2010001507A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cell
- wiring
- cell boundary
- boundary line
- semiconductor integrated
- Prior art date
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 40
- 238000009792 diffusion process Methods 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims description 26
- 230000003287 optical effect Effects 0.000 claims description 25
- 239000002184 metal Substances 0.000 abstract description 96
- 238000012937 correction Methods 0.000 abstract description 51
- 238000012545 processing Methods 0.000 abstract description 15
- 238000013461 design Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
Classifications
-
- 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
- H01L27/0207—Geometrical layout of the components, e.g. computer aided design; custom LSI, semi-custom LSI, standard cell technique
-
- 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
- H01L27/04—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 the substrate being a semiconductor body
- H01L27/10—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 the substrate being a semiconductor body including a plurality of individual components in a repetitive configuration
- H01L27/118—Masterslice integrated circuits
- H01L27/11803—Masterslice integrated circuits using field effect technology
- H01L27/11807—CMOS gate arrays
Definitions
- the present invention relates to a layout structure of a semiconductor integrated circuit effective for improving wiring pattern dimensional accuracy.
- the optical proximity effect is a phenomenon in which the finished value of the wiring width varies depending on the distance to the adjacent wiring.
- the optical proximity effect causes a reduction in wiring dimension accuracy. For this reason, depending on the wiring interval, the wiring width may be reduced below a specified value due to the influence of the optical proximity effect, and in some cases, there is a possibility of disconnection.
- OPC Optical Proximity effect Correction
- Patent Document 1 As a countermeasure for polysilicon wiring, a technique disclosed in Patent Document 1 is known. JP-A-10-32253
- a layout design is usually performed by arranging standard cells registered in a library.
- the distance to the adjacent wiring varies depending on the layout structure of adjacent cells.
- the metal wiring closest to the cell boundary line after placing the cell, it is necessary to determine the distance to the adjacent wiring and then perform OPC correction. Otherwise, particularly in the process of 65 nm or less, the metal wiring closest to the cell boundary line is thinned due to the optical proximity effect, and the possibility of disconnection increases. On the other hand, when OPC correction is performed after cell placement, there is a problem that the amount of data for OPC correction increases and the OPC correction processing time also increases.
- the present invention provides a layout of a semiconductor integrated circuit that can prevent the metal wiring near the cell boundary line from being thinned or disconnected without increasing the data amount of OPC correction and the processing time.
- the purpose is to provide a structure.
- the present invention includes a semiconductor integrated circuit device including first and second standard cells having cell structures different from each other and adjacent to each other at a cell boundary extending in a first direction.
- a rectangular wiring region extending in the first direction and having no other wiring region up to the cell boundary is substantially line symmetric with respect to the cell boundary as an axis of symmetry. As such, they are arranged.
- a rectangular wiring region in which no other wiring region exists between the cell boundary lines in other words, a wiring region closest to the cell boundary line is It arrange
- the semiconductor integrated circuit device includes first and second standard cells having cell structures different from each other and adjacent to each other at a cell boundary extending in a first direction.
- a rectangular wiring region extending in the first direction and having no other wiring region between the cell boundary line is asymmetric with respect to the cell boundary line as an axis of symmetry.
- the wiring region is substantially line-symmetric with respect to the cell boundary line as an axis of symmetry when it is considered that the intervals of a predetermined length or less are connected.
- the cell boundary lines are arranged so as to be substantially line symmetric with respect to the axis of symmetry. For this reason, with respect to the wiring region closest to the cell boundary line, the distance to the adjacent wiring is determined before placing the standard cell. Accordingly, it is possible to predict in advance the magnitude of the wiring width variation due to the optical proximity effect, and it is possible to apply OPC correction in the standard cell state. As a result, OPC correction after cell placement becomes unnecessary, the data amount of OPC correction can be reduced, and the OPC correction processing time can be shortened.
- the present invention it is possible to prevent the metal wiring closest to the cell boundary line from being thinned or disconnected without increasing the data amount of OPC correction and the processing time.
- FIG. 1 is a layout plan view showing the configuration of the semiconductor integrated circuit device according to the first embodiment.
- FIG. 2 is a layout plan view showing another configuration of the semiconductor integrated circuit device according to the first embodiment.
- FIG. 3 is a layout plan view showing another configuration of the semiconductor integrated circuit device according to the first embodiment.
- FIG. 4 is a layout plan view showing the configuration of the semiconductor integrated circuit device according to the second embodiment.
- FIG. 5 is a layout plan view showing another configuration of the semiconductor integrated circuit device according to the second embodiment.
- FIG. 6 is a layout plan view showing another configuration of the semiconductor integrated circuit device according to the second embodiment.
- FIG. 7 is a layout plan view showing the configuration of the semiconductor integrated circuit device according to the third embodiment.
- FIG. 8 is a layout plan view showing the configuration of the semiconductor integrated circuit device according to the fourth embodiment.
- FIG. 9 is a layout plan view showing another configuration of the semiconductor integrated circuit device according to the fourth embodiment.
- FIG. 10 shows an example of a standard cell having a cell boundary line.
- FIG. 11 shows an example of layout data using standard cells as shown in FIG.
- FIG. 12 shows another example of a standard cell having a cell boundary line.
- FIG. 13 shows an example of layout data using standard cells as shown in FIG.
- FIG. 14 is an example of layout data using standard cells without cell boundary lines.
- FIG. 15 is a diagram showing cell boundary lines in the layout data of FIG.
- FIG. 1 is a layout plan view showing the configuration of the semiconductor integrated circuit device according to the first embodiment.
- a cell A as a first standard cell and a cell B as a second standard cell are adjacent to each other at a cell boundary line F1 extending in a first direction (vertical direction in the drawing).
- Cell A and cell B have different cell structures.
- PMOS transistors P1, P2 and NMOS transistors N1, N2 are arranged.
- a power supply voltage is supplied to the sources of the PMOS transistors P1 and P2 through metal wirings m3 and m4 drawn from the power supply wiring m1.
- the drains of the PMOS transistors P1 and P2 are shared, and are connected to the drain of the NMOS transistor N1 by the metal wiring m5.
- This metal wiring m5 constitutes the output of the cell A.
- a ground voltage is supplied to the source of the NMOS transistor N2 through the metal wiring m6 drawn from the ground wiring m2.
- a PMOS transistor P3 and an NMOS transistor N3 are arranged in the cell B.
- the power supply voltage is supplied to the source of the PMOS transistor P3 through the metal wiring m7 drawn from the power supply wiring m1.
- the drain of the PMOS transistor P3 is connected to the drain of the NMOS transistor N3 by the metal wiring m8.
- This metal wiring m8 constitutes the output of cell B.
- a ground voltage is supplied to the source of the NMOS transistor N3 through the metal wiring m9 drawn from the ground wiring m2.
- the metal wirings m4, m6, extending in the same direction as the cell boundary line F1 and closest to the cell boundary line F1 (in other words, there is no other wiring region between the cell boundary line F1).
- the rectangular wiring areas m7 and m9 are arranged so as to be substantially line symmetric with respect to the cell boundary line F1.
- the wiring widths w1 and w3 are equal and the distances s1 and s2 to the cell boundary line F1 are equal. Further, the extending length (the range in the direction of the cell boundary line F1) is substantially equal.
- the metal wiring m6 and the metal wiring m9 are compared, the wiring widths w2 and w4 are equal and the distances s3 and s4 to the cell boundary line F1 are equal. Further, the extending length (the range in the direction of the cell boundary line F1) is substantially equal.
- the size of the diffusion region near the cell boundary line F1 is different between the cell A and the cell B. That is, the sides g1 and g2 on the cell boundary line F1 side of the diffusion regions d1 and d2 closest to the cell boundary line F1 in the cell A (in other words, there is no other diffusion region between the cell boundary line F1), The sides g3 and g4 on the cell boundary line F1 side of the diffusion regions d3 and d4 closest to the cell boundary line F1 in the cell B (in other words, there is no other diffusion region between the cell boundary line F1) and the cell boundary line F1
- the boundary line F1 is not symmetrical with respect to the axis of symmetry but is asymmetrical.
- the metal wirings m7 and m9 are formed short in accordance with the diffusion regions d3 and d4 having a small size. Therefore, the metal wirings m4 and m6 in the adjacent cell A are not line symmetric with respect to the cell boundary line F1.
- the metal wirings m7 and m9 in the cell B are extended to be adjacent to each other.
- the metal wirings m4 and m6 in the cell A and the cell boundary line F1 are symmetrical with each other.
- the magnitude of the wiring width variation due to the optical proximity effect can be predicted in advance, and OPC correction can be performed in the state of the standard cell.
- OPC correction after cell placement becomes unnecessary, the data amount of OPC correction can be reduced, and the OPC correction processing time can be shortened.
- FIG. 2 is a layout plan view showing another configuration of the semiconductor integrated circuit device according to the present embodiment.
- the configurations of the cell A and the cell B are the same as those in FIG.
- the rectangular wiring areas of the metal wirings m4, m6, m7, and m9 that extend in the same direction as the cell boundary line F1 and that are closest to the cell boundary line F1 have the cell boundary line F1 as the axis of symmetry. It arrange
- the arrangement of contacts is asymmetric with respect to the cell boundary line F1.
- the metal wiring m4 and the metal wiring m7 are symmetrical with respect to the cell boundary line F1 by extending the extension x3 of the metal wiring m7 with respect to the contact c3 with respect to the extension x1 of the metal wiring m4 with respect to the contact c1. It is trying to become.
- the metal wiring m6 and the metal wiring m9 are symmetrical with respect to the cell boundary line F1. I have to.
- the 2 can also predict in advance the fluctuation of the wiring width due to the optical proximity effect with respect to the metal wiring in the vicinity of the cell boundary line F1, and can perform OPC correction in the standard cell state. For this reason, OPC correction after cell placement becomes unnecessary, the amount of data for OPC correction can be reduced, and the OPC correction processing time can be shortened.
- the area ratio of the metal wiring layer can be increased by extending the metal wiring region, and the thickness of the metal wiring layer in the cell can be kept uniform. Also, the yield is improved by extending the extension to the contact.
- FIG. 3 is a layout plan view showing another configuration of the semiconductor integrated circuit device according to the present embodiment.
- the configuration of the cell A is different from that in FIG. 1, and there is no PMOS transistor P2, and both NMOS transistors N1 and N2 are connected to the PMOS transistor P1.
- a dummy pattern D1 of metal wiring is arranged in the vicinity of the cell boundary line F1 of the cell A. Then, the rectangular wiring regions of the metal wirings D1, m6, m7, and m9 that extend in the same direction as the cell boundary line F1 and are closest to the cell boundary line F1 are substantially symmetrical with respect to the cell boundary line F1. It is arranged to be.
- the dummy pattern D1 is usually not arranged in the cell A. Therefore, the metal wiring m7 in the adjacent cell B does not have a wiring region that is line-symmetric with respect to the cell boundary line F1. In this case, regarding the metal wiring m7, the distance to the adjacent metal wiring cannot be determined within the cell.
- the size of the wiring width variation due to the optical proximity effect can be predicted in advance for the metal wiring m7 in the vicinity of the cell boundary F1, and the standard cell In this state, OPC correction can be applied. For this reason, OPC correction after cell placement becomes unnecessary, the amount of data for OPC correction can be reduced, and the OPC correction processing time can be shortened.
- FIG. 4 is a layout plan view showing the configuration of the semiconductor integrated circuit device according to the second embodiment.
- the cell A as the first standard cell and the cell B as the second standard cell are adjacent to each other at the cell boundary line F1 extending in the first direction (vertical direction in the drawing).
- Cell A and cell B have different cell structures.
- PMOS transistors P1, P2 and NMOS transistors N1, N2 are arranged.
- the sources of the PMOS transistors P1 and P2 are shared, and the power supply voltage is supplied by the metal wiring m3 drawn from the power supply wiring m1.
- the drains of the PMOS transistors P1 and P2 are connected by a metal wiring m4, and further connected to the drains of the NMOS transistors N1 and N2.
- This metal wiring m4 constitutes the output of the cell A.
- the sources of the NMOS transistors N1 and N2 are shared, and a ground voltage is supplied by the metal wiring m5 drawn from the ground wiring m2. With such a configuration, the cell A realizes a predetermined circuit function.
- PMOS transistors P3 and P4 and NMOS transistors N3 and N4 are arranged.
- the sources of the PMOS transistors P3 and P4 are shared, and the power supply voltage is supplied by the metal wiring m7 drawn from the power supply wiring m1.
- the drain of the PMOS transistor P3 is connected to the drain of the NMOS transistor N3 by the metal wiring m6.
- the drain of the PMOS transistor P4 is connected to the drain of the NMOS transistor N4 by the metal wiring m8.
- This metal wiring m8 constitutes the output of cell B.
- the sources of the NMOS transistors N3 and N4 are shared, and a ground voltage is supplied by the metal wiring m9 drawn from the ground wiring m2. With such a configuration, the cell B realizes a predetermined circuit function.
- the metal wiring m4 has a rectangular wiring region (a portion surrounded by a broken line) M1 having a side e1 near the cell boundary F1 as one side and a rectangular having a side e2 near the cell boundary F1 as a side.
- the metal wiring m6 is close to the rectangular wiring region (a portion surrounded by a broken line) M3 having a side e3 close to the cell boundary F1 as one side and the cell boundary F1.
- a rectangular wiring region (a portion surrounded by a broken line) M4 having the side e4 as one side.
- the wiring areas M1, M2, M3, and M4 are rectangular wiring areas that are closest to the cell boundary line F1, in other words, no other wiring areas exist between the cell boundary line F1.
- the rectangular wiring regions M1, M2, M3, and M4 that extend in the same direction as the cell boundary line F1 and are closest to the cell boundary line F1 are substantially lined with the cell boundary line F1 as the symmetry axis. They are arranged so as to be symmetrical.
- the length (that is, the length of the sides e1 and e3) extending in the direction of the cell boundary line F1 is substantially equal to the range.
- the respective wiring widths w2 and w4 are equal, and the respective distances s3 and s4 to the cell boundary line F1 are equal.
- the length (that is, the length of the sides e2 and e4) extending in the direction of the cell boundary line F1 is substantially equal to the range.
- the magnitude of the wiring width variation due to the optical proximity effect can be predicted in advance, and OPC correction can be performed in the state of the standard cell. For this reason, OPC correction after cell placement becomes unnecessary, the amount of data for OPC correction can be reduced, and the OPC correction processing time can be shortened.
- FIG. 5 is a layout plan view showing another configuration of the semiconductor integrated circuit device according to the present embodiment.
- the configuration of the cell A is different from that in FIG. 4, and there is no PMOS transistor P2, and both NMOS transistors N1 and N2 are connected to the PMOS transistor P2.
- a dummy pattern D1 of metal wiring is arranged in the vicinity of the cell boundary line F1 of the cell A.
- the rectangular wiring region of the metal wiring D1 and the wiring regions M2, M3, and M4 that extend in the same direction as the cell boundary line F1 and that are closest to the cell boundary line F1 are substantially formed with the cell boundary line F1 as the axis of symmetry. Are arranged in line symmetry.
- the dummy pattern D1 is usually not arranged in the cell A. Therefore, the wiring region M3 in the adjacent cell B does not have a wiring region that is line symmetric with respect to the cell boundary line F1. In this case, with respect to the wiring region M3, the distance to the adjacent metal wiring cannot be determined within the cell.
- FIG. 6 is a layout plan view showing another configuration of the semiconductor integrated circuit device according to the present embodiment.
- the configurations of cell A and cell B are different from those in FIG.
- the rectangular wiring region of the dummy pattern D1 the rectangular wiring region M2 of the metal wiring m5, and the metal wiring m6 that extend in the same direction as the cell boundary line F1 and are closest to the cell boundary line F1.
- the rectangular wiring region M3 and the rectangular wiring region M4 of the metal wiring m8 are arranged so as to be substantially line symmetric with respect to the cell boundary line F1.
- the magnitude of the wiring width variation due to the optical proximity effect can be predicted in advance, and OPC correction can be performed in the state of the standard cell. For this reason, OPC correction after cell placement becomes unnecessary, the amount of data for OPC correction can be reduced, and the OPC correction processing time can be shortened.
- FIG. 7 is a layout plan view showing the configuration of the semiconductor integrated circuit device according to the third embodiment.
- the cell A as the first standard cell and the cell B as the second standard cell are adjacent to each other at the cell boundary line F1 extending in the first direction (vertical direction in the drawing).
- Cell A and cell B have different cell structures.
- PMOS transistors P1, P2 and NMOS transistors N1, N2 are arranged.
- the sources of the PMOS transistors P1 and P2 are supplied with the power supply voltage by the metal wirings m3 and m4 drawn from the power supply wiring m1.
- the drains of the PMOS transistors P1 and P2 are shared, and are connected to the drain of the NMOS transistor N1 by the metal wiring m5.
- This metal wiring m5 constitutes the output of the cell A.
- the source of the NMOS transistor N2 is supplied with the ground voltage by the metal wiring m6 drawn from the ground wiring m2. With such a configuration, the cell A realizes a predetermined circuit function.
- a PMOS transistor P3 and an NMOS transistor N3 are arranged in the cell B.
- a power supply voltage is supplied to the source of the PMOS transistor P3 through a metal wiring m7 drawn from the power supply wiring m1.
- the drain of the PMOS transistor P3 is connected to the drain of the NMOS transistor N3 by the metal wiring m8.
- This metal wiring m8 constitutes the output of cell B.
- the source of the NMOS transistor N3 is supplied with the ground voltage by the metal wiring m9 drawn from the ground wiring m2.
- dummy patterns D1 and D2 are arranged between the metal wirings m4 and m6 that are closest to the cell boundary line F1.
- dummy patterns D3 and D4 are arranged between the metal wirings m7 and m9 closest to the cell boundary line F1. That is, in the configuration of FIG. 7, the metal wirings m4 and m6 and the dummy pattern D1 in the cell A are used as the rectangular wiring area closest to the cell boundary line F1 (no other wiring area exists until the cell boundary line F1).
- D2 in the cell B metal wirings m7, m9 and dummy patterns D3, D4 are arranged, respectively.
- the widths w5 of the dummy patterns D1, D2, D3, and D4 are equal, and the distances s1, s2, s3, and s4 to the cell boundary line F1 are also equal.
- the metal wirings m4 and m6 and the dummy patterns D1 and D2 in the cell A, and the metal wirings m7 and m9 and the dummy patterns D3 and D4 in the cell B are substantially lined with respect to the cell boundary line F1. They are arranged so as to be symmetrical.
- the magnitude of the wiring width variation due to the optical proximity effect can be predicted in advance, and OPC correction can be performed in the state of the standard cell. For this reason, OPC correction after cell placement becomes unnecessary, the amount of data for OPC correction can be reduced, and the OPC correction processing time can be shortened.
- the area of the metal wiring can be increased by arranging the dummy pattern, the area ratio of the metal wiring layer can be adjusted, the film thickness of the metal wiring layer in the cell is kept uniform, Yield can be improved.
- the dummy patterns D1, D2, D3, and D4 may be metal wirings for configuring input / output terminals.
- the rectangular wiring region closest to the cell boundary line in two adjacent cells is lined with respect to the cell boundary line so that the magnitude of the wiring width variation due to the optical proximity effect can be predicted in advance. They were arranged so as to be symmetrical.
- a rectangular wiring area that extends in the same direction as the cell boundary line and does not have any other wiring area between the cell boundary line is asymmetrical with respect to the cell boundary line as an axis of symmetry. It has become. Then, when it is considered that an interval of a predetermined length or less is connected, these wiring regions are substantially line symmetric with respect to the cell boundary line as an axis of symmetry.
- the predetermined length here is a length of an interval that can be regarded as being substantially connected in terms of the optical proximity effect.
- the wiring region is substantially line-symmetric with respect to the cell boundary line. Will be placed. Therefore, as in the above-described embodiments, the magnitude of the wiring width variation due to the optical proximity effect can be predicted in advance, and OPC correction can be performed in the standard cell state.
- FIG. 8 is a layout plan view showing the configuration of the semiconductor integrated circuit device according to the fourth embodiment.
- the cell A as the first standard cell and the cell B as the second standard cell are adjacent to each other at the cell boundary line F1 extending in the first direction (vertical direction in the drawing).
- the configurations of the cell A and the cell B are almost the same as those in FIG.
- the metal wirings m7 and m9 in the cell B are extended longer, and only one dummy pattern (dummy pattern D3) is arranged between them.
- the interval t between the wiring areas is set to a predetermined length or less so that the wiring areas can be considered to be connected in terms of the optical proximity effect.
- the interval t is smaller than the wiring width w.
- the wiring regions X1 and X2 are substantially line symmetric with respect to the cell boundary line F1. That is, the wiring regions X1 and X2 both have a width w and the distance to the cell boundary line F1 is s.
- the dummy patterns D1, D2, and D3 may be metal wirings for configuring input / output terminals.
- the dummy patterns D1, D2, and D3 may be connected to any one of the metal wirings m4, m6, m7, and m9.
- the substantial wiring regions X1 and X2 are formed over the entire cells A and B in the first direction, but may be formed in a part thereof.
- FIG. 9 is a layout plan view showing another configuration of the semiconductor integrated circuit device according to the present embodiment.
- the configurations of the cell A and the cell B are the same as those in FIG.
- the substantial wiring regions X3 and X4 extending in the first direction and having no other wiring region between the cell boundary line F1 are substantially formed with the cell boundary line F1 as the axis of symmetry. It is formed so as to be symmetrical with respect to the line. That is, the widths of the wiring regions X3 and X4 are both w, and the distance to the cell boundary line F1 is both s.
- the wiring regions X3 and X4 are formed in a part of the cell A and the cell B in the first direction.
- the dummy patterns D1 and D2 are arranged at the interval t, and in the wiring area X4, the metal wiring m7 is arranged.
- the wiring regions of the metal wirings m6 and m9 are also arranged so as to be line symmetric with respect to the cell boundary line F1.
- the wiring region is substantially line-symmetric with respect to the cell boundary line.
- the width, the distance to the cell boundary line, and the extending length are substantially equal. Is the case.
- substantially equal means that a difference that does not cause a difference in influence on adjacent wirings is allowed in view of the optical proximity effect.
- layout design is generally performed by arranging standard cells registered in a library.
- Each standard cell has various logic functions such as an inverter, NAND, NOR, and flip-flop.
- Standard cell layout data usually includes a cell boundary, as in cell X shown in FIG.
- layout data is created by arranging each cell (cell X, Y, Z) so that the cell boundary line touches.
- the cell boundary line is virtual at the time of layout design and does not exist in the final semiconductor integrated circuit. Therefore, in the standard cell layout data, it is not always necessary to provide a cell boundary line at a position as shown in FIG.
- the cell boundary line may be set outside of FIG. 10, and adjacent cells may be overlapped and arranged as shown in FIG.
- the cell boundary line is located at the positions X1 and X2 of the cell boundary line of the standard cell itself.
- adjacent cells are arranged so as to overlap each other, and the cell boundary line of the standard cell is located in the adjacent cell.
- the cell boundary line it is assumed that there is a cell boundary line at positions Y1 and Y2 between the cell boundary lines of the standard cell itself.
- the cell boundary line is at positions Z1 and Z2.
- a block that realizes one logical function in the semiconductor integrated circuit device is regarded as one standard cell.
- a block realizing a logic function refers to a circuit block having various logic functions such as an inverter, NAND, NOR, and flip-flop. Then, it is considered that there is a cell boundary line at the boundary where the blocks realizing the logical function are adjacent to each other.
- the signal line wiring is not connected to other standard cells in the wiring layer and is independent.
- the cell lines X, Y, and Z arranged adjacent to each other are independent of each other in signal line wiring, and no signal line is connected between the cells.
- the power supply wiring is connected between the cells. That is, the boundary of the standard cell, that is, the position of the cell boundary line can be recognized by looking at the configuration of the signal line in the cell.
- the signal line wiring for connecting the cells is usually formed in a wiring layer above the signal line wiring in the cell.
- the present invention it is possible to prevent the metal wiring closest to the cell boundary line from being thinned or disconnected without increasing the amount of OPC correction data and processing time. This is useful for improving the yield of semiconductor integrated circuits, reducing costs, and shortening the development period.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Design And Manufacture Of Integrated Circuits (AREA)
Abstract
Description
m1 電源配線
m2 接地配線
m4,m6,m7,m9 メタル配線
D1,D2,D3,D4 ダミーパターン
d1,d2,d3,d4 拡散領域
g1,g2,g3,g4 拡散領域の辺
c1,c2,c3,c4 コンタクト
M1,M2,M3,M4 配線領域
X1,X2,X3,X4 実質的な配線領域
t 配線領域の間隔
図1は第1の実施形態に係る半導体集積回路装置の構成を示すレイアウト平面図である。図1の構成では、第1のスタンダードセルとしてのセルAおよび第2のスタンダードセルとしてのセルBが、第1の方向(図における縦方向)に延びるセル境界線F1において隣接している。
図4は第2の実施形態に係る半導体集積回路装置の構成を示すレイアウト平面図である。図4の構成では、第1のスタンダードセルとしてのセルAおよび第2のスタンダードセルとしてのセルBが、第1の方向(図における縦方向)に延びるセル境界線F1において隣接している。
図7は第3の実施形態に係る半導体集積回路装置の構成を示すレイアウト平面図である。図7の構成では、第1のスタンダードセルとしてのセルAおよび第2のスタンダードセルとしてのセルBが、第1の方向(図における縦方向)に延びるセル境界線F1において隣接している。
上述の各実施形態では、光近接効果による配線幅変動の大きさを予め予測できるように、隣接する2つのセルにおいて、セル境界線に最も近い矩形の配線領域を、セル境界線に対して線対称になるように配置するものとした。
Claims (7)
- セル構造が互いに異なっており、かつ、第1の方向に延びるセル境界線において隣接する第1および第2のスタンダードセルを備え、
前記第1および第2のスタンダードセルにおいて、
前記第1の方向に延び、かつ、前記セル境界線までの間に他の配線領域が存在しない矩形の配線領域が、前記セル境界線を対称軸として実質的に線対称になるように、配置されており、かつ、
前記セル境界線まで間に他の拡散領域が存在しない拡散領域の前記セル境界線側の辺が、前記セル境界線を対称軸として非対称になっている
ことを特徴とする半導体集積回路装置。 - セル構造が互いに異なっており、かつ、第1の方向に延びるセル境界線において隣接する第1および第2のスタンダードセルを備え、
前記第1および第2のスタンダードセルにおいて、
前記第1の方向に延び、かつ、前記セル境界線までの範囲に他の配線領域が存在しない矩形の配線領域が、前記セル境界線を対称軸として実質的に線対称になるように、配置されており、かつ、
前記セル境界線を対称軸として実質的に線対称になっている矩形の配線領域において、コンタクトの配置が、前記セル境界線を対称軸として非対称になっている
ことを特徴とする半導体集積回路装置。 - 請求項1または2記載の半導体集積回路装置において、
前記配線領域のうち、少なくとも一部は、電源配線または接地配線と接続されている
ことを特徴とする半導体集積回路装置。 - 請求項1または2記載の半導体集積回路装置において、
前記配線領域のうち、少なくとも一部は、ダミーパターンである
ことを特徴とする半導体集積回路装置。 - セル構造が互いに異なっており、かつ、第1の方向に延びるセル境界線において隣接する第1および第2のスタンダードセルを備え、
前記第1および第2のスタンダードセルにおいて、
前記第1の方向に延び、かつ、前記セル境界線までの間に他の配線領域が存在しない矩形の配線領域が、前記セル境界線を対称軸として非対称になっており、
所定長以下の間隔をつながっているものとみなしたとき、前記配線領域が、前記セル境界線を対称軸として実質的に線対称になっており、
前記所定長は、光近接効果の面において、実質的につながっているものとみなせる間隔の長さである
ことを特徴とする半導体集積回路装置。 - 請求項5記載の半導体集積回路装置において、
前記配線領域のうち、少なくとも一部は、電源配線または接地配線と接続されている
ことを特徴とする半導体集積回路装置。 - 請求項5記載の半導体集積回路装置において、
前記配線領域のうち、少なくとも一部は、ダミーパターンである
ことを特徴とする半導体集積回路装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200980100120.6A CN101785096B (zh) | 2008-07-04 | 2009-02-24 | 半导体集成电路器件 |
JP2009519685A JPWO2010001507A1 (ja) | 2008-07-04 | 2009-02-24 | 半導体集積回路装置 |
US12/542,263 US8004014B2 (en) | 2008-07-04 | 2009-08-17 | Semiconductor integrated circuit device having metal interconnect regions placed symmetrically with respect to a cell boundary |
US13/113,644 US8368225B2 (en) | 2008-07-04 | 2011-05-23 | Semiconductor integrated circuit device having improved interconnect accuracy near cell boundaries |
US13/714,020 US8698273B2 (en) | 2008-07-04 | 2012-12-13 | Semiconductor integrated circuit device having improved interconnect accuracy near cell boundaries |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-176143 | 2008-07-04 | ||
JP2008176143 | 2008-07-04 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/542,263 Continuation US8004014B2 (en) | 2008-07-04 | 2009-08-17 | Semiconductor integrated circuit device having metal interconnect regions placed symmetrically with respect to a cell boundary |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010001507A1 true WO2010001507A1 (ja) | 2010-01-07 |
Family
ID=41465617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/000801 WO2010001507A1 (ja) | 2008-07-04 | 2009-02-24 | 半導体集積回路装置 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPWO2010001507A1 (ja) |
CN (1) | CN101785096B (ja) |
WO (1) | WO2010001507A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102918643A (zh) * | 2011-04-06 | 2013-02-06 | 松下电器产业株式会社 | 半导体集成电路装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004342757A (ja) * | 2003-05-14 | 2004-12-02 | Toshiba Corp | 半導体集積回路及びその設計方法 |
JP2007110166A (ja) * | 2007-01-15 | 2007-04-26 | Toshiba Corp | レイアウトパターンの作成装置及びレイアウトパターンの作成方法 |
JP2007317814A (ja) * | 2006-05-25 | 2007-12-06 | Matsushita Electric Ind Co Ltd | スタンダードセルを用いた半導体集積回路とその設計方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4383752B2 (ja) * | 2003-02-19 | 2009-12-16 | パナソニック株式会社 | マスクパタン生成方法およびマスクパタン生成装置 |
CN100442525C (zh) * | 2004-12-20 | 2008-12-10 | 松下电器产业株式会社 | 单元、标准单元、使用标准单元的布局方法和半导体集成电路 |
-
2009
- 2009-02-24 CN CN200980100120.6A patent/CN101785096B/zh active Active
- 2009-02-24 WO PCT/JP2009/000801 patent/WO2010001507A1/ja active Application Filing
- 2009-02-24 JP JP2009519685A patent/JPWO2010001507A1/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004342757A (ja) * | 2003-05-14 | 2004-12-02 | Toshiba Corp | 半導体集積回路及びその設計方法 |
JP2007317814A (ja) * | 2006-05-25 | 2007-12-06 | Matsushita Electric Ind Co Ltd | スタンダードセルを用いた半導体集積回路とその設計方法 |
JP2007110166A (ja) * | 2007-01-15 | 2007-04-26 | Toshiba Corp | レイアウトパターンの作成装置及びレイアウトパターンの作成方法 |
Also Published As
Publication number | Publication date |
---|---|
CN101785096B (zh) | 2013-06-26 |
CN101785096A (zh) | 2010-07-21 |
JPWO2010001507A1 (ja) | 2011-12-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8319257B2 (en) | Semiconductor device and layout design method therefor | |
US8159013B2 (en) | Semiconductor integrated circuit device having a dummy metal wiring line | |
US8004014B2 (en) | Semiconductor integrated circuit device having metal interconnect regions placed symmetrically with respect to a cell boundary | |
KR100284104B1 (ko) | 반도체장치및그제조방법,로직셀라이브러리및그제조방법,반도체집적회로및폴리데이터 | |
JP5509599B2 (ja) | 半導体集積回路 | |
US20100001763A1 (en) | Semiconductor integrated circuit, layout design method of semiconductor integrated circuit, and layout program product for same | |
US7290234B2 (en) | Method for computer aided design of semiconductor integrated circuits | |
US20100164614A1 (en) | Structure and System of Mixing Poly Pitch Cell Design under Default Poly Pitch Design Rules | |
JP2008235350A (ja) | 半導体集積回路 | |
JP2007036194A (ja) | デバイス性能の不整合低減方法および半導体回路 | |
TW201923448A (zh) | 工程變更指令(eco)單元架構及實施 | |
US8810280B2 (en) | Low leakage spare gates for integrated circuits | |
KR20160105263A (ko) | 시스템 온 칩 및 이의 레이아웃 설계 방법 | |
US7867671B2 (en) | Photo-mask having phase and non-phase shifter parts for patterning an insulated gate transistor | |
US8227869B2 (en) | Performance-aware logic operations for generating masks | |
WO2010001507A1 (ja) | 半導体集積回路装置 | |
JP4562456B2 (ja) | 半導体集積回路 | |
JP2009099044A (ja) | パターンデータ作成方法、設計レイアウト作成方法及びパターンデータ検証方法 | |
JP2008258425A (ja) | 標準セルおよびこれを有する半導体装置 | |
US20100138803A1 (en) | Apparatus and method of supporting design of semiconductor integrated circuit | |
JP2009182237A (ja) | 露光条件設定方法、パターン設計方法及び半導体装置の製造方法 | |
JP2004006514A (ja) | ゲートアレイ半導体装置の基本セル,ゲートアレイ半導体装置,および,ゲートアレイ半導体装置のレイアウト方法 | |
JPH10261781A (ja) | 半導体装置及びシステム | |
JP2007129094A (ja) | 半導体装置 | |
JP2006303099A (ja) | スタンダードセル構造 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980100120.6 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009519685 Country of ref document: JP |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09773085 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 09773085 Country of ref document: EP Kind code of ref document: A1 |