ÇѱÛÁ¦¸ñ(Korean Title) |
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¿µ¹®Á¦¸ñ(English Title) |
A Channel Router under Crosstalk Constraints |
ÀúÀÚ(Author) |
Àå°æ¼±
Çϼøȸ
ÀüÁÖ½Ä
KyoungSon Jhang
Soonhoi Ha
Chu Shik Jhon
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¿ø¹®¼ö·Ïó(Citation) |
VOL 21 NO. 10 PP. 1873 ~ 1882 (1994. 10) |
Çѱ۳»¿ë (Korean Abstract) |
VLSI °øÁ¤ ±â¼úÀÇ ¹ß´Þ·Î Ĩ »ó¿¡¼ Àü¼±°£ °£°ÝÀÌ Á¡Á¡ °¡±î¿Í Áö°í ÀÖ´Ù. ±×¿¡ µû¶ó ±¸ÇöµÈ VLSI ȸ·Î°¡ ºü¸£°í Á¤È®ÇÏ°Ô µ¿ÀÛÇϵµ·Ï Çϱâ À§Çؼ ·¹À̾ƿô ¼³°è °úÁ¤¿¡¼ ÀÎÁ¢ Àü¼±°£ÀÇ °áÇÕ ÃàÀü·®À¸·Î ¹ß»ýÇϴ ȥ¼±À» ÁÙÀÌ´Â °ÍÀ» Áß¿äÇÑ ¿äÀÎÀ¸·Î °í·ÁÇÏ°Ô µÇ¾ú´Ù. ¼³°è °úÁ¤¿¡¼ ³×Æ® º°·Î È¥¼±¿¡ ´ëÇÑ »óÇÑÄ¡°¡ ÁÖ¾îÁö´Â °ÍÀÌ º¸ÅëÀ̸ç, À̸¦ È¥¼± Á¦¾à Á¶°ÇÀ̶ó°í ÇÑ´Ù. ÀÌ ³í¹®¿¡¼´Â È¥¼± Á¦¾à Á¶°ÇÀ» °í·ÁÇÑ ±×¸®µå äÅÐ ¹è¼± ¹®Á¦¸¦ ´Ù·é´Ù. Á¦¾ÈµÈ ¹æ¹ýÀº Æ®·¢ ¼ö ÃÖ¼Òȸ¦ ¸ñÀûÀ¸·Î ÇÏ´Â ±âÁ¸ÀÇ Ã¤³Î ¹è¼± ¹æ¹ýÀ¸·Î »ý¼ºµÈ Ãʱ⠹輱¿¡ ´ëÇØ ¼öÆò ¼±ºÐµéÀ» Àç¹è¿ÇÏ¿© È¥¼± Á¦¾à Á¶°ÇÀ» ¸¸Á·Çϵµ·Ï ÇÑ´Ù. ÀÌ ¹æ¹ýÀº ÁÖ¾îÁø Æ®·¢ ¼ö ³»¿¡¼ È¥¼± Á¦¾à Á¶°ÇÀ» ¸¸Á·ÇÏ´Â ÇØ°¡ ¾ø´Â °æ¿ì¿¡´Â ÃÖ¼ÒÀÇ Æ®·¢ ¼ö Áõ°¡·Î È¥¼± Á¦¾à Á¶°ÇÀ» ¸¸Á·ÇÏ´Â ¹è¼±À» ã´Â´Ù. ½ÇÇè °á°ú ÀÌ ¹æ¹ýÀº Æ®·¢ Àç¹èÄ¡ ¹æ¹ýº¸´Ù È¿À²ÀûÀÓÀ» °üÂûÇÒ ¼ö ÀÖ¾ú´Ù.
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¿µ¹®³»¿ë (English Abstract) |
The inter-wire spacing in a VLSI chip becomes closer as the VLSI fabrication technology rapidly evolves. Accordingly, it becomes important to consider crosstalk caused by the coupling capacitance between adjacent wires in the layout design for the fast and safe VLSI circuits. The upper bounds of the crosstalk for nets, called crosstalk constraint, are usually given in the design specification. This paper deals with the gridded channel routing problem with crosstalk constraints. In this paper, we present a channel routing technique which generates a routing to satisfy crosstalk constraints from an initial routing generated by conventional routers. The proposed technique is based on the repeated rearrangements of horizontal segments in the initial routing. In addition, the proposed technique tries to find a routing to satisfy crosstalk constraints with the minimum increase of the number of tracks in cases where it cannot find a routing to satisfy crosstalk constraints with the given number of tracks. With experiments, we observed that the presented technique is more effective than the track permutation technique.
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