作者：郭士誠 徐健綸 指導老師：曾奕倫. introduction gdsii owlvision introduction our...

作者：郭士誠 徐健綸 指導老師：曾奕倫

OwlVision GDSII Viewer 縮放功能增修

IntroductionGDSIIOwlVision

IntroductionOur problem

Our approachConclusion

Outline

Layout of an Inverter

LayoutA file for storing integrated circuit layout data.

GDSIIDe-facto standard in the semiconductor

industry.Oasis

New formatSmaller file size

CIF (Caltech Intermediate Form)

Layout Formats

HEADER 600; # version BGNLIB; UNITS; USERUNITS 0.0010; PHYSUNITS 9.999999999999999E-10;

BGNSTR; # Begin of structure CREATION {2001-11-11 4:43:34}; # creation time LASTMOD {2004-8-31 13:39:37}; # last modification time STRNAME via;

BOUNDARY; ... ENDEL;

ENDSTR;

ENDLIB;

GDSII-Header

Header

Cell

Polygon

BGNSTR; # Begin of structure STRNAME via;

BOUNDARY; LAYER 49; DATATYPE 0; XY 5; X: -2000; Y: -2000; X: 2000; Y: -2000; X: 2000; Y: 2000; X: -2000; Y: 2000; X: -2000; Y: -2000; ENDEL;

ENDSTR;

GDSII-Cell

BOUNDARY; LAYER 51; DATATYPE 0; XY 5; X: -2000; Y: -

2000; X: 2000; Y: -2000; X: 2000; Y: 2000; X: -2000; Y: 2000; X: -2000; Y: -2000; ENDEL;

BOUNDARY; LAYER 50; DATATYPE 0; XY 5; X: - 1000; Y: - 1000; X: 1000; Y: - 1000; X: 2000; Y: 1000; X: - 1000; Y: 1000; X: - 1000; Y: - 1000; ENDEL;

49

5051

49

51

50

BGNSTR; # Begin of structureSTRNAME inv1;

SREF;SNAME via;XY 1; X: 23000; Y: 70500;ENDEL;

ENDSTR;

GDSII-Cell

BOUNDARY;LAYER 46;DATATYPE 0;XY 5; X: 3000; Y: 74000; X: 8000; Y: 74000; X: 8000; Y: 79000; X: 3000; Y: 79000; X: 3000; Y: 74000;ENDEL;

GDSII- BOUNDARY

3000, 84000

3000, 74000

8000, 74000

8000, 79000

PATH;LAYER 46;DATATYPE 0;WIDTH 2000;XY 6; X: 12500; Y: 92500; X: 12500; Y: 84000; X: 7000; Y: 84000; X: 7000; Y: 57000; X: 12500; Y: 57000; X: 12500; Y: 49000;ENDEL;

GDSII-PATH 12500, 92500 12500,

84000

7000, 57000

12500, 57000

7000, 84000

12500, 49000

OwlVisionBy I-Lun Tseng

VirtuosoCadence

LakerSpringsoft ( 思源 )

GDSII Viewers/Editors

A software package written in JAVA

Free software

Can be run on most operating systems

OwlVision

Problem

Our approach

圖片位移量 X

1/2 視窗大小 (1/2) * Wwin

放大後圖片大小 Wimg

Image Positions

最大移動距離 :Xmax

Calculation of Image Positions

Scroll Bar Value : 𝛼 𝛼 = 0

Image Position : XX = * X𝛼 max

Scroll Bar Value : 𝛼

𝛼 = 0.5Image Position : XX = * X𝛼 max = (0.5) * Xmax

Scroll Bar Value : 𝛼 𝛼 = 1

Image Position : XX = * X𝛼 max = Xmax

(1/2)XmaxXmax

Calculation of Image Positions

Xmax* 𝛼

(1/2) * Wwin

Xmax*𝛼 + (1/2) * Wwin

Wimg

Implementation

Image Width : Wimg = 750Window width : Wwin = 500Image Position : XX = 0Scroll Bar Value : 𝛼

𝛼 = Xmax / Wimg = 0

β = ( * Xmax + Wwin ) / Wimg = 2/3

Image Width : Wimg = 1125Window width : Wwin = 500β = 2/3Scroll Bar Value : 𝛼

𝛼 = 0Image Position : XX = * X𝛼 max = -50

Zoom Area

Calculation of Zoom Area

Xmax* 𝛼

x1

( x1+x2) / 2

x2

IC 半導體設計是個非常嚴謹的學問，設計的好壞嚴重關係到產品的良率。而曾奕倫老師開發的 OwlVision

是個非常實用的 IC 設計軟體，能參與這個軟體的開發，讓我們獲益良多。我們希望再未來還能夠繼續加強這個軟體，再增進我們開發實務經驗的同時，也讓在 IC 設計產業的同仁們可以有個免費且方便的開發環境。

Conclusion

問題與回顧

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