Please use this identifier to cite or link to this item:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/41754
Title: | 以傅立葉描述元為基礎之光學鄰近修正壓縮表示法 Compact Representation of Optical Proximity Correction Geometry Based on Fourier Descriptor Method |
Authors: | Tsung-Che Hsieh 謝宗哲 |
Advisor: | 陳中平(Chung-Ping Chen) |
Keyword: | 傅立葉描述元,傅立葉轉換,光學鄰近修正術,光學成像模擬,圖形表示法, Fourier descriptor,Fourier transform,Optical Proximity Correction,aerial image simulation,shape representation, |
Publication Year : | 2009 |
Degree: | 碩士 |
Abstract: | 隨著半導體產業不斷的進步,製程不斷的演進,製程線寬從180奈米一直進步到65 甚至45奈米。 當線寬尺寸逼近光波長時,光線穿過光罩後會產生繞射,這些繞射光疊加的結果會與光罩上的圖形跟我們所期望的結果相去甚遠,曝光後的圖形因而嚴重失真。所以有許多增加解析度的技術陸續被提出。而光學鄰近修正技術 (OPC) 就是其中一種增強解析度的方法,為了補償曝光後圖形失真的現象,我們可以經由修改光罩上的圖形,像是在邊緣多加一些襯線,讓繞射光在疊加後滿足我們實際的要求。但是在做完光學鄰近修正術 (OPC) 後,原本的形狀改變了,儲存這些形狀所需要的資料量也變高許多。
在本篇論文,我們提出一種以傅立葉描述元為基礎的表示法,用來表示做完光學鄰近修正術 (OPC) 後的結果。實驗結果顯示,相較於傳統的方法,我們可以節省約5倍的資料儲存量。 The geometry complexity of Optical Proximity Corrected (OPC) Mask and the aerial image are often overwhelming. To speed up the processing time of mask development, OPC quality assurance, and data storage, compact representation of the OPC mask and aerial image are of great importance. In this thesis, we proposed a novel compact representation method based on the fourier descriptor (FD) method. FD is a widely used contour representation method for image processing. Our experimental result show that more than 5x reduction ratio of the data volume are observed with minor errors. To the best of authors knowledge, FD is applied to OPC data representation in the first time. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/41754 |
Fulltext Rights: | 有償授權 |
Appears in Collections: | 電子工程學研究所 |
Files in This Item:
File | Size | Format | |
---|---|---|---|
ntu-98-1.pdf Restricted Access | 4.55 MB | Adobe PDF |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.