WO2006018891A1 - 半導体装置及びその設計方法 - Google Patents
半導体装置及びその設計方法 Download PDFInfo
- Publication number
- WO2006018891A1 WO2006018891A1 PCT/JP2004/011967 JP2004011967W WO2006018891A1 WO 2006018891 A1 WO2006018891 A1 WO 2006018891A1 JP 2004011967 W JP2004011967 W JP 2004011967W WO 2006018891 A1 WO2006018891 A1 WO 2006018891A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cell
- wiring
- power supply
- layer
- semiconductor device
- Prior art date
Links
Classifications
-
- 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
- H01L23/5286—Arrangements of power or ground buses
-
- 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
- H01L2924/01—Chemical elements
- H01L2924/01014—Silicon [Si]
-
- 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
- H01L2924/01—Chemical elements
- H01L2924/01033—Arsenic [As]
-
- 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
- H01L2924/30—Technical effects
- H01L2924/301—Electrical effects
- H01L2924/3025—Electromagnetic shielding
Definitions
- the present invention relates to a semiconductor device and a design method thereof, and more particularly to a semiconductor device having a power supply wiring or a ground wiring and a design method thereof.
- a semiconductor device can constitute various logic circuits.
- the logic circuit operates by being connected to the power supply wiring and ground wiring.
- the number of usable wiring metal layers is limited. For this reason, the main focus is placed on efficiently arranging signal wiring, power supply wiring, and ground wiring in the same wiring layer.
- An object of the present invention is to make it possible to easily determine the arrangement of power supply wiring or ground wiring.
- Another object of the present invention is to reduce the size of a semiconductor device by efficiently arranging power supply wiring or ground wiring.
- Still another object of the present invention is to improve the shielding effect and prevent noise by efficiently arranging power supply wiring or ground wiring.
- a semiconductor device having a first cell in which a power supply wiring or a ground wiring is provided only in the outer peripheral portion except the central portion of the cell in the first layer, and a design method therefor Is done.
- the power supply wiring or the ground wiring is provided only in the outer peripheral portion except for the central portion of the cell, the arrangement of the power supply wiring or the ground wiring can be easily determined. Thus, the design time can be shortened. In addition, since the power supply wiring or the Darling wiring can be efficiently arranged, useless cells are reduced and the semiconductor device can be downsized. In addition, when the power supply wiring or ground wiring is provided in all the spare cells, the power supply wiring or ground wiring can be efficiently arranged, the shielding effect can be improved, and noise can be prevented.
- FIG. 1 is a conceptual diagram showing a configuration example of a semiconductor device according to an embodiment of the present invention.
- FIG. 2 is a surface view of the semiconductor device according to the present embodiment.
- FIG. 3 is a cross-sectional view of the semiconductor device according to the present embodiment.
- FIG. 4 is a surface view of a semiconductor device according to a reference example.
- FIG. 5 is a cross-sectional view of a semiconductor device according to a reference example.
- FIG. 6 is a surface view showing a configuration example of a semiconductor device in which a plurality of cells are arranged according to the present embodiment.
- FIG. 7 is a surface view showing a configuration of a semiconductor device in which a plurality of cells are arranged according to a reference example.
- FIG. 8 is a surface view showing an example of the overall configuration of the semiconductor device according to the present embodiment.
- FIG. 9 is a surface view showing an overall configuration of a semiconductor device according to a reference example.
- FIG. 10 is a conceptual diagram showing a configuration example of a spare cell.
- FIG. 11 is a conceptual diagram showing a configuration example of a normal cell.
- FIG. 12 is a surface view showing a configuration example of a semiconductor device in which a plurality of cells are arranged according to the present embodiment.
- FIG. 13 is a surface view showing a configuration example of a semiconductor device using the spare cell according to the present embodiment as a large current path.
- FIG. 14 is a block diagram illustrating a hardware configuration example of a computer that performs design processing of a semiconductor device. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1, FIG. 2, FIG. 3, FIG. 6 and FIG. 8 show configuration examples of the semiconductor device according to the embodiment of the present invention.
- 4, 5, 7 and 9 show the structure of a semiconductor device according to a reference example.
- the semiconductor device of this embodiment and its design method will be described in comparison with a reference example.
- FIG. 4 is a surface view of a semiconductor device according to a reference example
- FIG. 5 is a cross-sectional view taken along line II-II in FIG.
- a semiconductor device is composed of a large number of cells. 4 and 5 show the configuration of one cell in the semiconductor device.
- the power supply wiring VDD is connected to the Balta layer BLK via the via 411.
- Ground wiring VS S is connected to Balta layer BLK through via 412.
- the input pin 401 is an input terminal of the cell and is connected to the Balta layer BLK.
- the output pin 402 is an output terminal of the cell and is connected to the node layer BLK.
- the power supply wiring VDD and the ground wiring VSS are provided in the same wiring layer.
- the number of wiring metal layers that can be used for wiring is limited.
- the power supply wiring VDD and the ground wiring VSS are efficiently arranged in the same wiring layer.
- the power supply wiring VDD is provided at the left end of the figure
- the ground wiring VSS is provided at the right end of the figure.
- the power supply wiring VDD and the ground wiring VSS can be formed at both ends of the cells in the same layer.
- the power supply wiring VDD can be provided at the upper end of the figure
- the ground wiring VSS can be provided at the lower end of the figure.
- Fig. 7 shows a configuration in which multiple cells are arranged.
- FIG. 7 is a surface view showing a configuration of a semiconductor device in which a plurality of cells CL according to a reference example are arranged.
- the power wiring VDD or the ground wiring V SS force S is provided at the upper end or the lower end of the figure of each cell CL.
- the power supply wiring VDD and the ground wiring VSS are provided only in one horizontal (or vertical) direction in the figure. For this reason, it is necessary to provide the power auxiliary wiring VDDa and the ground auxiliary wiring VSSa so as to be orthogonal to the power wiring VDD and the ground wiring VSS in a place where power shortage is expected.
- FIG. 9 is a surface view showing an overall configuration of a semiconductor device according to a reference example.
- a macro MC such as a RAM is provided.
- the potential supply wiring 901 including the power auxiliary wiring VDDa and the ground wiring VSSa. Since the potential supply wiring 901 needs to be arranged in consideration of the voltage drop and noise, the design is complicated, and the design time is long.
- FIG. 1 is a conceptual diagram showing a configuration example of a semiconductor device according to an embodiment of the present invention.
- Semiconductor The body device is composed of a large number of cells.
- FIG. 1 shows a configuration example of one cell in a semiconductor device.
- the Balta layer BLK is a semiconductor substrate such as silicon, and is provided with a diffusion layer or the like for forming a transistor.
- a layer of the power supply wiring VDD is provided via an insulating layer.
- the power supply wiring VDD is provided only in the outer peripheral portion of the power supply wiring layer except for the center of the cell.
- a ground wiring VSS layer is provided via an insulating layer.
- the ground wiring VSS is provided only in the outer peripheral portion of the ground wiring layer except for the central portion of the cell.
- a layer of the first signal wiring 101 is provided on the ground wiring VSS layer through an insulating layer.
- a layer of the second signal wiring 102 is provided via an insulating layer. Note that signal wiring can be provided in the empty areas of the power supply wiring VDD layer and the ground wiring VSS layer.
- the dedicated layer for the power supply wiring VDD and the dedicated layer for the ground wiring VSS are provided separately.
- the power supply wiring VDD and the ground wiring VSS are formed in a so-called ring shape in different layers.
- FIG. 2 is a surface view of the semiconductor device according to the present embodiment
- FIG. 3 is a cross-sectional view taken along line I—I in FIG.
- the power supply wiring VDD is provided, for example, in the first metal wiring layer, and is connected to the Balta layer BLK via the via 212.
- the ground wiring VSS is provided, for example, in the second metal wiring layer, and is connected to the Balta layer BLK via the via 211.
- the input pin 201 is a cell input terminal and is connected to the Balta layer BLK.
- the output pin 202 is an output terminal of the cell and is connected to the node layer BLK.
- a dedicated layer for the power supply wiring VDD and a dedicated layer for the ground wiring V SS are determined as the wiring layers.
- a ring-shaped power supply wiring VDD is provided in the dedicated power supply wiring layer
- a ring-shaped ground power supply VSS is provided in the dedicated ground wiring layer.
- FIG. 6 is a surface view showing a configuration example of the semiconductor device in which a plurality of cells CL are arranged according to the present embodiment.
- the power supply wiring VDD is formed in a ring shape on the power supply wiring dedicated layer.
- the ground wiring vss is formed in a ring shape in the ground wiring dedicated layer.
- Multiple quadrangular cells CL are arranged. Four or more other cells are adjacent to the four sides of the quadrangular cell CL.
- the power supply wiring V DD is connected to each other in the power supply wiring dedicated layer
- the ground wiring VSS is connected to each other in the ground wiring dedicated layer.
- a power supply wiring VDD and a ground wiring VSS are formed at the connection portion of the plurality of cells CL.
- the power supply wiring VDD and the ground wiring VSS can be formed only in one direction in the horizontal direction in the figure, it is necessary to provide the power supply auxiliary wiring VDDa and the ground auxiliary wiring VSSa.
- the power supply wiring VDD and the ground wiring VSS can be formed in both the horizontal direction and the vertical direction in the figure, so that it is not necessary to provide the power supply auxiliary wiring VDDa and the ground auxiliary wiring VSSa. Is easy and the design time can be shortened. Further, in the present embodiment, since it is not necessary to provide the power auxiliary wiring VDDa and the ground auxiliary wiring VSSa, it is possible to prevent a useless region from being generated in the lower layer. As a result, the semiconductor chip area can be reduced and the number of layout steps can be reduced.
- the spare cell ECL can be disposed in the gap.
- the production time of the Balta layer BLK takes a long time, and the subsequent production time of the wiring layer is relatively short.
- the logic circuit can be changed only by changing the wiring layer without changing the Balta layer BLK. That is, it is possible to easily cope with the logic change by changing the spare cell ECL to the normal cell CL.
- FIG. 10 is a conceptual diagram showing a configuration example of the spare cell ECL
- FIG. 11 is a conceptual diagram showing a configuration example of the normal cell CL.
- the power supply wiring VDD is provided on the entire surface of the power supply wiring dedicated layer on the Balta layer BLK via an insulating layer.
- the ground wiring VSS is provided on the entire surface of the dedicated ground wiring layer on the dedicated layer of the power wiring VDD via an insulating layer. That is, the power supply wiring VDD is provided in all the cells in the power supply wiring dedicated layer, and the ground line VSS is provided in all the cells in the ground wiring dedicated layer.
- the ring-shaped power supply wiring VDD is provided on the power supply wiring dedicated layer on the Balta layer BLK via an insulating layer.
- a ring-shaped ground wiring VSS is provided in the dedicated ground wiring layer via an insulating layer. That is, the power supply wiring VDD is provided only in the outer peripheral portion except for the center portion of the cell in the power supply wiring exclusive layer, and the ground wiring VSS is provided only in the outer peripheral portion except for the central portion of the cell in the ground wiring layer.
- the logic of the semiconductor device can be changed.
- the power supply wiring VDD is arranged on the entire surface of the cell.
- a ring-shaped power supply wiring VDD is arranged in the cell. The same applies to the ground wiring VSS.
- FIG. 13 is a surface view showing a configuration example of the semiconductor device using the spare cell ECL according to the present embodiment as a large current path.
- a power supply pad I / O (input / output) cell 1301 and a normal I / O cell 1302 are provided on the outer periphery of the semiconductor device.
- the power supply wiring dedicated layer a plurality of normal cells CL and spare cells ECL are provided, which are adjacent to each other, and the power supply wirings VDD on the outer periphery of the normal cell CL and the spare cell ECL are connected to each other.
- the ground wiring VSS is connected to each other in a dedicated ground wiring layer.
- the power supply voltage VDD is supplied to the power supply wiring VDD from the power pad ⁇ 0 cell 1301.
- the large current circuit 1 304 is composed of one cell (or macro) having a ring-shaped power supply wiring VDD and consumes a large current.
- a large current path 1303 is provided between the power supply pad I / O cell 1301 and the large current circuit 1304.
- the large current path 1303 is a power supply trunk line in which a plurality of spare cells ECL are arranged side by side.
- the large current path 1303 allows a large current to flow because the area of the power supply wiring VDD is large. Similarly, the area of the ground wiring VSS increases.
- the large current circuit 1304 is connected to the power pad ⁇ cell 1301 via the large current path 1303. Can receive a large current.
- FIG. 8 is a surface view showing an example of the overall configuration of the semiconductor device according to the present embodiment.
- the semiconductor device has a macro MC in addition to a large number of cells CL.
- the macro MC is, for example, a RAM.
- the cell CL will be described as including a macro MC.
- the macro MC has the same configuration as the cell CL described above, and includes a ring-shaped power supply wiring VDD and a ground wiring VSS.
- the Senole CL is provided with the power supply wiring VDD only in the outer peripheral portion except for the center portion of the cell in the dedicated power wiring layer, and only in the outer peripheral portion except for the central portion of the cell in the dedicated ground wiring layer.
- a ground wiring VSS is provided.
- the plurality of cells CL are adjacent to each other, and the power wiring VDD is connected to each other in the power wiring dedicated layer, and the ground wiring VSS is connected to each other in the ground wiring dedicated layer. Accordingly, the combined power supply wiring VDD and ground wiring VSS are provided at the connection portion between the cells CL. Since the cell CL force is square, the power supply wiring VDD and the ground wiring VSS can be arranged in both the horizontal direction and the vertical direction. As a result, when determining the arrangement of the power supply wiring VDD and the ground wiring VSS, the design is easy and the design time can be shortened.
- the power supply wiring VDD and the ground wiring VSS can be configured in the vertical direction and the horizontal direction. Therefore, the power supply auxiliary wiring VD Da and the ground auxiliary wiring VSSa are newly provided. The work to be added can be reduced. In addition, since it is not necessary to provide power supply auxiliary wiring (power supply trunk line) VDDa or the like, it is possible to reduce the semiconductor chip area.
- a spare cell ECL having a large area of the power supply wiring VDD and the ground wiring VSS is arranged, whereby the power supply wiring VDD and the ground of the entire semiconductor chip are arranged.
- the wiring VSS area is increased, the shielding effect is improved, and noise can be prevented.
- FIG. 14 is a block diagram illustrating a hardware configuration example of a computer that performs the design process of the semiconductor device.
- This computer can create design data for semiconductor devices using CAD (computer-aided design).
- the bus 1401 includes a central processing unit (CPU) 1402, R M1403, RAM 1404, network interface 1405, input device 1 406, an output device 1407 and an external storage device 1408 are connected.
- CPU central processing unit
- RAM random access memory
- network interface 1405 input device 1 406, an output device 1407 and an external storage device 1408 are connected.
- the CPU 1402 performs data processing and calculation, and controls the above-described constituent units connected via the bus 1401.
- the ROM 1403 stores a boot program in advance, and the computer is started when the CPU 1402 executes this boot program.
- a computer program is stored in the external storage device 1408, and the computer program is copied to the RAM 1404 and executed by the CPU 1402. This computer performs design processing of the semiconductor device and the like by executing a computer program.
- the external storage device 1408 is, for example, a hard disk storage device or the like, and the stored content does not disappear even when the power is turned off.
- the external storage device 1408 can record a computer program, design data, and the like on a recording medium, and can read out the computer program and the like from the recording medium.
- the network interface 1405 can input and output computer programs, design data, and the like to the network.
- the input device 1406 is, for example, a keyboard and a pointing device (mouse), and can perform various designations or inputs.
- the output device 1407 is a display, a printer, or the like.
- the semiconductor device design method according to the present embodiment can be realized by a computer executing a program.
- means for supplying the program to the computer for example, a computer-readable recording medium such as a CD-ROM on which a powerful program is recorded, or a transmission medium such as the Internet for transmitting the powerful program is also applied as an embodiment of the present invention. can do.
- a computer program product such as a computer-readable recording medium in which the above program is recorded can be applied as an embodiment of the present invention.
- the above program, recording medium, transmission medium, and computer program product are included in the scope of the present invention.
- the recording medium for example, a flexible disk, a hard disk, an optical disk, a magneto-optical disk, a CD-ROM, a magnetic tape, a nonvolatile memory card, a ROM, or the like can be used.
- the arrangement of the power supply wiring or the ground wiring can be easily determined by providing the power supply wiring or the ground wiring only in the outer peripheral portion except for the central portion of the cell. Time can be shortened.
- the power supply wiring or the Darling wiring can be efficiently arranged, useless cells are reduced and the semiconductor device can be downsized.
- the power supply wiring or ground wiring can be efficiently arranged, the shielding effect can be improved, and noise can be prevented.
Landscapes
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Design And Manufacture Of Integrated Circuits (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2004/011967 WO2006018891A1 (ja) | 2004-08-20 | 2004-08-20 | 半導体装置及びその設計方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2004/011967 WO2006018891A1 (ja) | 2004-08-20 | 2004-08-20 | 半導体装置及びその設計方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006018891A1 true WO2006018891A1 (ja) | 2006-02-23 |
Family
ID=35907288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/011967 WO2006018891A1 (ja) | 2004-08-20 | 2004-08-20 | 半導体装置及びその設計方法 |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2006018891A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63142656A (ja) * | 1986-12-05 | 1988-06-15 | Fuji Xerox Co Ltd | セミカスタム半導体集積回路 |
JPS6459831A (en) * | 1987-08-31 | 1989-03-07 | Toshiba Corp | Semiconductor integrated circuit |
JPS6474737A (en) * | 1987-09-17 | 1989-03-20 | Sanyo Electric Co | Master slice type semiconductor device |
-
2004
- 2004-08-20 WO PCT/JP2004/011967 patent/WO2006018891A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63142656A (ja) * | 1986-12-05 | 1988-06-15 | Fuji Xerox Co Ltd | セミカスタム半導体集積回路 |
JPS6459831A (en) * | 1987-08-31 | 1989-03-07 | Toshiba Corp | Semiconductor integrated circuit |
JPS6474737A (en) * | 1987-09-17 | 1989-03-20 | Sanyo Electric Co | Master slice type semiconductor device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20080258177A1 (en) | method of manufacturing a semiconductor device and a semiconductor device | |
US7543249B2 (en) | Embedded switchable power ring | |
US9754923B1 (en) | Power gate placement techniques in three-dimensional (3D) integrated circuits (ICs) (3DICs) | |
US20150035070A1 (en) | Method and layout of an integrated circuit | |
US20240037309A1 (en) | Multiplexer | |
US20220115369A1 (en) | Semiconductor devices, methods of designing layouts of semiconductor devices and methods of fabricating semiconductor devices | |
TWI771698B (zh) | 多工器電路、多工器及製造多工器方法 | |
JP2004273844A (ja) | 半導体集積回路 | |
US8312397B2 (en) | Method for generating layout pattern of semiconductor device and layout pattern generating apparatus | |
US11158570B2 (en) | Semiconductor devices having electrostatic discharge layouts for reduced capacitance | |
JP3996735B2 (ja) | 半導体装置 | |
WO2006018891A1 (ja) | 半導体装置及びその設計方法 | |
JP3644138B2 (ja) | 半導体集積回路及びその配置配線方法 | |
JP4786989B2 (ja) | 半導体集積回路装置 | |
TW201941396A (zh) | 錯開的自對準閘極接觸件 | |
JP4447210B2 (ja) | 電源端子パターン生成方法及び半導体装置 | |
JP5540910B2 (ja) | 集積回路、集積回路設計装置及び集積回路設計方法 | |
JP4441541B2 (ja) | 半導体装置 | |
JP6836137B2 (ja) | 半導体装置及びそのレイアウト設計方法 | |
WO2006062505A1 (en) | Asic device with multiple power supply voltages | |
JP2003115542A (ja) | マクロセルを有する半導体集積回路、及びその設計方法 | |
JP4211264B2 (ja) | 半導体装置及びその設計方法 | |
WO2013094002A1 (ja) | 回路設計支援装置、回路設計支援方法、及び、回路設計支援プログラム | |
JP2000058660A (ja) | 半導体自動配線装置、半導体自動配線方法および半導体自動配線プログラムを記録した媒体 | |
JP2003216675A (ja) | 半導体集積回路のレイアウト設計方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase | ||
NENP | Non-entry into the national phase |
Ref country code: JP |