Cadence Innvous导出GDS没有STDCELL/IO/NET/VIA问题的解决方法-海口c网

Cadence Innvous导出GDS没有STDCELL/IO/NET/VIA问题的解决方法

article/2025/8/20 11:49:27

Cadence Innvous导出GDS之后，可以重新导入Cadence Virtuoso进行查看。

1. Innovus设计完成后的GDS导出命令

导出gds命令：
streamOut [-help] <fileName> [-attachNetProp <string>] [-dieAreaAsBoundary] [-libName <string>] [-mapFile <string>] [-mode <string>] [-noStructureName] [-offset {x y}] [-outputMacros] [-pvs_fill] [-reportFile <string>] [-structureName <string>] [-units <integer>] [-merge <string> [-noTSV <tsv_name_list>] [-uniquifyCellNames ]] [-area {x1 y1 x2 y2} [-strict ]] [-format {stream oasis} [-outputInstanceName <string>] [-outputNetName <string>]] [-attachInstanceName <integer> | -outputInstanceName <string>] [-attachNetName <integer> | -outputNetName <string>]

-help # Prints out the command usage
# (list, required)
-area {x1 y1 x2 y2} # -area x1 y1 x2 y2 (box, optional)
-attachInstanceName # -attachInstanceName (int, optional)
-attachNetName # -attachNetName (int, optional)
-attachNetProp # -attachNetProp { {<prop_name> <attr_num>} … } (string, optional)
-dieAreaAsBoundary # output die area as boundary (bool, optional)
-format {stream oasis} # Specify tape out file format (enum, optional)
-libName # -libName libraryName (string, optional)
-mapFile # -mapFile mapFile (string, optional)
-merge # -merge {list of external Stream files} (string, optional)
-mode # -mode {ALL|FILLONLY|NOFILL|NOINSTANCES} (string, optional)
-noStructureName # merge GDSII file withOut loading design (bool, optional)
-noTSV <tsv_name_list> # A list of TSV via names that should be from merge file not be written out from design. (string, optional)
-offset {x y} # -offset x y (point, optional)
-outputInstanceName # Write the instance name string to oasis file. (string, optional)
-outputMacros # output macros (bool, optional)
-outputNetName # Write the net name string to oasis file. (string, optional)
-pvs_fill # Will merge the PVS fill data attached to the current DB (see set_pvs_fill) into the output gds file, and instantiate the
# PVS top fill cell at 0,0 R0 inside the top design cell. The PVS fill format must be ‘gds’ (see the global pvs_fill_data
# variable) (bool, optional)
-reportFile # -reportFile fileName (string, optional)
-strict # Truncate the object outside the area (bool, optional)
-structureName # top structure name (string, optional)
-uniquifyCellNames # uniquify conflict cell name in merge file (bool, optional)
-units # -units {100|200|400|800|1000|2000|4000|8000|10000|20000} (int, optional)

一般命令：

streamOut ./export/my_chip.gds \
-mapFile ./import/techfile.layermap \
-libName MY_CHIP \
-units 1000 \
-mode ALL \
-merge {./import/gds/iopin.gds \
./import/gds/scc55nll_hs_hvt.gds} \
-dieAreaAsBoundary

2. 布线和通孔无法导出的问题

导入的mapfile可能会存在问题，比如techfile.layermap文件中各个层的定义为：

M1		drawing		41		0
M2		drawing		42		0
M3		drawing		43		0
M4		drawing		44		0
...
V1		drawing		60		0
V2		drawing		61		0
V3		drawing		62		0
V4		drawing		63		0

这个drawing标签Innovus无法识别，无法将工程文件内的Route和VIA导出，因此需要进行扩展，具体扩展方法如下：

M1		NET			41		0
M1		SPNET		41		0
M1		PIN			41		0
M1		LEFPIN		41		0
M1		FILL		41		0
M1		FILLOPC		41		0
M1		VIA			41		0
M1		VIAFILL		41		0
M1		VIAFILLOPC	41		0
M1		LEFOBS		41		0
M1		LEFOBS		41		0V1		VIA			60		0
V1		VIAFILL		60		0
V1		VIAFILLOPC	60		0
...

M1是全的，V1可能不全，但目前三个标签本人导出的时候没有问题。

接下来对比一下原来未改动的导出信息和改动后的导出信息：

#改动前
Stream Out Information Processed for GDS version 5:
Units: 1000 DBU
Object                             Count
----------------------------------------
Instances                          67543
Ports/Pins                             0
Nets                                   0Via Instances                      0
Special Nets                           0Via Instances                      0
Metal Fills                            0Via Instances                      0
Metal FillOPCs                         0Via Instances                      0
Metal FillDRCs                         0Via Instances                      0
Text                                   0
Blockages                              0
Custom Text                            0
Custom Box                             0
Trim Metal                             0

# 改动后：
Stream Out Information Processed for GDS version 5:
Units: 1000 DBU
Object                             Count
----------------------------------------
Instances                          67543
Ports/Pins                             0
Nets                              481548metal layer M2                307527metal layer M3                140037metal layer M4                 29403metal layer M5                  4581Via Instances                 353389
Special Nets                         804metal layer M1                   762metal layer M5                    20metal layer TM2                   22Via Instances                  14003
Metal Fills                            0Via Instances                      0
Metal FillOPCs                         0Via Instances                      0
Metal FillDRCs                         0Via Instances                      0
Text                                   0
Blockages                              0
Custom Text                            0
Custom Box                             0
Trim Metal                             0