为什么我用gds做mw和lef做mw的frame会不一样呢！

zg8312

ISOHID4M这个cell是设计中要用到的，但是standar cell没有，我们就自己做了layout，然后用astro抽取frame给icc place&route使用！
但是出现了问题！我在astro中用import gds的方法抽取的frame，在icc中cell不在cell track上，但是用lef in这个方法做的frame是没有问题的，
lef文件也是同一个gds抽取的！同学们帮我看看问题出在哪里啦？

这张是import gds的方法抽取的frame！isohid4m这个cell离左右的cell都有缝隙！

这张是lef in做的frame！这个就没有缝隙！


这是我import gds to frame的脚本！

1. define lib_name "iso_slow"
   
2. define tech_file "smic18m_5lm.tf"
   
3. define gds_file "ISO.gds"
   
4. define metal1text_num "141"
   
5. define metal2text_num "142"
   
6. define metal3text_num "143"
   
7. define metal4text_num "144"
   
8. define metal5text_num "145"
   
9. define cellpitch_width "0.56"
   
10. define cellpitch_length "3.92"
    
11. define prBoundary_layer "127"
    
12. 
    
13. menuReload "astro_data_prep"
    
14. 
    
15. cmCreateLib
    
16. setFormField "Create Library" "Library Name" lib_name
    
17. setFormField "Create Library" "Set Case Sensitive" "1"
    
18. setFormField "Create Library" "Technology File Name" tech_file
    
19. formOK "Create Library"
    
20. 
    
21. geOpenLib
    
22. setFormField "Open Library" "Library Name" lib_name
    
23. formOK "Open Library"
    
24. 
    
25. auStreamIn
    
26. setFormField "Stream In Data File" "Stream File Name" gds_file
    
27. setFormField "Stream In Data File" "Library Name" lib_name
    
28. setFormField "Stream In Data File" "Use Layer for Boundary" "1"
    
29. setFormField "Stream In Data File" "Boundary Layer" prBoundary_layer
    
30. setFormField "Stream In Data File" "Cell Type Definition File" ""
    
31. formOK "Stream In Data File"
    
32. 
    
33. dbSetCellPortTypes lib_name "*" '(
    
34. ("VDD" "Power")
    
35. ("VSS" "Ground")
    
36. ("ISO" "Input")
    
37. ("I" "Input")
    
38. ("Z" "Output")
    
39. )#f
    
40. 
    
41. cmMarkCellType
    
42. setFormField "Mark Cell Type" "Library Name" lib_name
    
43. setFormField "Mark Cell Type" "Cell Name" ".*"
    
44. setFormField "Mark Cell Type" "pattern match" "1"
    
45. setFormField "Mark Cell Type" "Cell Type" "std cell"
    
46. formOK "Mark Cell Type"
    
47. 
    
48. auExtractBlockagePinVia
    
49. setFormField "Extract Blockage" "Library Name" lib_name
    
50. setFormField "Extract Blockage" "macro" "0"
    
51. setFormField "Extract Blockage" "pad" "0"
    
52. ;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
    
53. formButton "Extract Blockage" "extractBlkg"
    
54. setFormField "Extract Blockage" "Routing Blockage Output Layer" "metBlk"
    
55. setFormField "Extract Blockage" "Poly Blockage As Thin" "1"
    
56. setFormField "Extract Blockage" "Metal1 Blockage As Thin" "1"
    
57. setFormField "Extract Blockage" "Metal2 Blockage As Thin" "1"
    
58. setFormField "Extract Blockage" "Metal3 Blockage As Thin" "1"
    
59. setFormField "Extract Blockage" "Metal4 Blockage As Thin" "1"
    
60. setFormField "Extract Blockage" "Metal5 Blockage As Thin" "1"
    
61. ;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
    
62. formButton "Extract Blockage" "extractPin"
    
63. setFormField "Extract Blockage" "Metal1 Text" metal1text_num
    
64. setFormField "Extract Blockage" "Metal2 Text" metal2text_num
    
65. setFormField "Extract Blockage" "Metal3 Text" metal3text_num
    
66. setFormField "Extract Blockage" "Metal4 Text" metal4text_num
    
67. setFormField "Extract Blockage" "Metal5 Text" metal5text_num
    
68. setFormField "Extract Blockage" "extract connectivity" "0"
    
69. setFormField "Extract Blockage" "text fall through" "0"
    
70. setFormField "Extract Blockage" "double fall through" "0"
    
71. ;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
    
72. formButton "Extract Blockage" "extractVia"
    
73. formOK "Extract Blockage"
    
74. 
    
75. auSetPRBdry
    
76. setFormField "Set PR Boundary" "Library Name" lib_name
    
77. setFormField "Set PR Boundary" "Height" "specify"
    
78. setFormField "Set PR Boundary" "Height Value" cellpitch_length
    
79. setFormField "Set PR Boundary" "Width" "specify"
    
80. setFormField "Set PR Boundary" "Width Value" cellpitch_width
    
81. formOK "Set PR Boundary"
    
82. 
    
83. geConfirmCloseLib
    
84. formYes "Dialog Box"
    
85. 
    
86. 
    
87. 
    

复制代码

xjg@hmes

auSetPRBdry结束后需要下面的操作：
设置WireTrack。
Milkyway : Wire Tracks -> Define Unit Tile Wire Tracks …
设置的原则是横向的offset要设置为0,纵向的offset要设置为Pitch的一半。

zg8312

回复 2# xjg@hmes


    好的！谢谢！我试试！

zg8312

回复 2# xjg@hmes


    但是其中还有一个cell是ISOLOD4M，这个cell是和ISOHID4M这个cell一样的脚本的，但是它好像就没有这个问题的！

half_honey

好高森 马克一下

xjg@hmes

回复 4# zg8312


    两个cell的size是一样的吗？可能是碰巧那个cell满足track。
通常std cell做Milkyway数据都需要做wire track

zg8312

回复 6# xjg@hmes


    两个cell的大小是不同的！按你的要求做了wire track，好像还是不行呢！
有没有cell track的设置呢！

xjg@hmes

回复 7# zg8312


这个cell是你自己做的？cell的boundary size一定要是最小std cell的H/W的整数倍。
wire track设定是针对routing的。我刚开始没有细看你的描述，只看了你的script

zg8312

回复 8# xjg@hmes


    嗯！那我的脚本有没有什么问题呢？

xjg@hmes

回复 9# zg8312


    脚本需要添加wire track，否则routing会有问题