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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ ³í¹®Áö C : ÄÄÇ»ÆÃÀÇ ½ÇÁ¦

Á¤º¸°úÇÐȸ ³í¹®Áö C : ÄÄÇ»ÆÃÀÇ ½ÇÁ¦

Current Result Document : 3 / 3 ÀÌÀü°Ç ÀÌÀü°Ç

ÇѱÛÁ¦¸ñ(Korean Title) ¹ÝµµÃ¼°øÁ¤ ÀÌ»óŽÁö ¹× Ŭ·¯½ºÅ͸µÀ» À§ÇÑ ½Éº¼¸¯ Ç¥Çö¹ýÀÇ Àû¿ë
¿µ¹®Á¦¸ñ(English Title) Application of Symbolic Representation Method for Fault Detection and Clustering in Semiconductor Fabrication Processes
ÀúÀÚ(Author) ³ë¿õ±â   È«»óÁø   Woong-Kee Loh   Sang Jeen Hong  
¿ø¹®¼ö·Ïó(Citation) VOL 15 NO. 11 PP. 0806 ~ 0818 (2009. 11)
Çѱ۳»¿ë
(Korean Abstract)
¹ÝµµÃ¼(semiconductor) ±â¼úÀº 1950³â´ë¿¡ ÁýÀû ȸ·Î(integrated circuit, IC)°¡ ¹ß¸íµÈ ÀÌÈÄ ¿À´Ã³¯±îÁö ±Þ¼ÓÇÑ ¹ßÀüÀ» °ÅµìÇÏ°í ÀÖ´Ù. ÇϳªÀÇ ¿ÏÀüÇÑ ¹ÝµµÃ¼¸¦ Á¦Á¶Çϱâ À§Çؼ­´Â ¸Å¿ì ´Ù¾çÇÏ°í ±ä °øÁ¤À» °ÅÃÄ¾ß ÇÑ´Ù. ¹ÝµµÃ¼ Á¦Á¶ »ý»ê¼ºÀ» ³ôÀ̱â À§ÇÏ¿© °øÁ¤µéÀÌ Á¾·áµÇ±â Àü¿¡ ¹Ì¸® ÀÌ»ó(fault)À» ¹ß°ßÇϱâ À§ÇÑ ÀÌ»óŽÁö ¹× ºÐ·ù(fault detection and classification, FDC)¿¡ ´ëÇÑ ¸¹Àº ¿¬±¸°¡ ÁøÇàµÇ°í ÀÖ´Ù. À̸¦ À§ÇÏ¿© ´Ù¾çÇÑ ¹ÝµµÃ¼ Àåºñ¿¡ °®°¡Áö Á¾·ùÀÇ ¼¾¼­¸¦ ºÎÂøÇÏ¿© ÀÏÁ¤ÇÑ ½Ã°£ °£°ÝÀ¸·Î ¿øÇÏ´Â °ªÀ» ÃøÁ¤ÇÑ´Ù. ÀÌ·¯ÇÑ ÃøÁ¤ °ªÀº ½Ç¼ö °ªµéÀÇ ¿¬¼ÓÀ̹ǷΠ½Ã°è¿­(time-series) µ¥ÀÌÅÍÀÇ ÀÏÁ¾ÀÌ´Ù. º» ³í¹®¿¡¼­´Â ¹ÝµµÃ¼ °øÁ¤¿¡¼­ÀÇ ÀÌ»óŽÁö ¹× Ŭ·¯½ºÅ͸µÀ» ¼öÇàÇÏ´Â ¾Ë°í¸®ÁòÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈµÈ ¾Ë°í¸®ÁòÀº ½Ã°è¿­ µ¥ÀÌÅ͸¦ ½Éº¼¸¯ Ç¥Çö¹ý(symbolic representation)À¸·Î º¯È¯ÇÏ¿© ÀÌ»óÀ» ŽÁöÇÏ´Â ±âÁ¸ÀÇ ¾Ë°í¸®ÁòÀ» ¼öÁ¤ÇÑ °ÍÀÌ´Ù. º» ³í¹®ÀÇ °øÇåÀº ÀϹÝÀûÀÎ ½Ã°è¿­ µ¥ÀÌÅÍ¿¡ ´ëÇÑ ±âÁ¸ÀÇ ÀÌ»óŽÁö ¾Ë°í¸®ÁòÀ» ¼öÁ¤ÇÏ¿© ¹ÝµµÃ¼ °øÁ¤ µ¥ÀÌÅÍ¿¡ ´ëÇؼ­µµ È°¿ëÇÒ ¼ö ÀÖÀ½À» º¸ÀÏ »Ó¸¸ ¾Æ´Ï¶ó, ÀÌ»óŽÁö ¹× Ŭ·¯½ºÅ͸µÀÇ Á¤È®¼ºÀ» ³ôÀÌ´Â ½ÇÇè °á°ú¸¦ Á¦½ÃÇÏ´Â °ÍÀÌ´Ù. ½ÇÇè °á°ú, º» ³í¹®¿¡¼­ Á¦¾ÈÇÑ ¾Ë°í¸®ÁòÀº ±àÁ¤ ¿À·ù(false positive) ¹× ºÎÁ¤ ¿À·ù(false negative)¸¦ ¸ðµÎ ¹ß»ýÇÏÁö ¾Ê¾Ò´Ù.
¿µ¹®³»¿ë
(English Abstract)
Since the invention of the integrated circuit (IC) in 1950s, semiconductor technology has undergone dramatic development up to these days. A complete semiconductor is manufactured through a diversity of processes. For better semiconductor productivity, fault detection and classification (FDC) has been rigorously studied for finding faults even before the processes are completed. For FDC, various kinds of sensors are attached in many semiconductor manufacturing devices, and sensor values are collected in a periodic manner. The collection of sensor values consists of sequences of real numbers, and hence is regarded as a kind of time-series data. In this paper, we propose an algorithm for detecting and clustering faults in semiconductor processes. The proposed algorithm is a modification of the existing anomaly detection algorithm dealing with symbolically-represented time-series. The contributions of this paper are: (1) showing that a modification of the existing anomaly detection algorithm dealing with general time-series could be used for semiconductor process data and (2) presenting experimental results for improving correctness of fault detection and clustering. As a result of our experiment, the proposed algorithm caused neither false positive nor false negative.
Å°¿öµå(Keyword) ½Éº¼¸¯ Ç¥Çö¹ý   ½Ã°è¿­ µ¥ÀÌÅÍ   ¹ÝµµÃ¼ °øÁ¤   ÀÌ»óŽÁö   Ŭ·¯½ºÅ͸µ   ¾Ë°í¸®Áò   symbolic representation   time-series   semiconductor process   fault detection   clustering   algorithm  
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