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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Current Result Document : 5 / 20 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) RF Sputtering ¹ýÀ¸·Î Á¦ÀÛÇÑ °­À¯Àüü ¸Þ¸ð¸®ÀÇ ÇϺÎÀü±Ø¿ë RuO©ü ¹Ú¸·ÀÇ Æ¯¼º¿¡ °üÇÑ ¿¬±¸
¿µ¹®Á¦¸ñ(English Title) Properties of RuO©ü Thin Films for Bottom Electrode in Ferroelectric Memory by Using the RF Sputtering
ÀúÀÚ(Author) °­¼ºÁØ   Á¤¾çÈñ   Seong-Jun Kang   Yang-Hee Joung  
¿ø¹®¼ö·Ïó(Citation) VOL 04 NO. 05 PP. 1127 ~ 1134 (2000. 12)
Çѱ۳»¿ë
(Korean Abstract)
RF magnetron reactive sputtering ¹ýÀ¸·Î RuO2 ¹Ú¸·À» Á¦ÀÛÇÏ¿©, O2/(Ar O2) ºñ¿Í ±âÆǿµµ¿¡ µû¸¥ ¹Ú¸·ÀÇ °áÁ¤È­ Ư¼º, ¹Ì¼¼±¸Á¶, Ç¥¸é°ÅÄ¥±â, Àü±âÀû ºñÀúÇ×À» Á¶»çÇÏ¿´´Ù. O2/(Ar O2) ºñ°¡ °¨¼ÒÇÏ°í ±âÆǿµµ°¡ Áõ°¡ÇÔ¿¡ µû¶ó RuO2 ¹Ú¸·Àº (110) ¸é¿¡¼­ (101) ¸éÀ¸·Î ¿ì¼±¹èÇâ¹æÇâÀÌ º¯ÇÏ¿´´Ù. O2/(Ar O2) ºñ°¡20% ¿¡¼­ 50% ·Î Áõ°¡ÇÔ¿¡ µû¶ó, RuO2 ¹Ú¸·ÀÇ Ç¥¸é°ÅÄ¥±â´Â 2.38nm ¿¡¼­ 7.81nm·Î, ºñÀúÇ×Àº 103.6 ¥ì¥Ø-cm ¿¡¼­ 227 ¥ì¥Ø-cm·Î Áõ°¡ÇÏ´Â Ãß¼¼¸¦ ³ªÅ¸³»´Â ¹Ý¸é¿¡, ÁõÂø¼Óµµ´Â 47nm/min¿¡¼­ 17nm/min ·Î °¨¼ÒÇÏ¿´´Ù. ±âÆǿµµ°¡ »ó¿Â¿¡¼­ 500¡É ·Î Áõ°¡ÇÔ¿¡ µû¶ó ºñÀúÇ×Àº 210.4¥ì¥Ø-cm ¿¡¼­ 93.7¥ì¥Ø-cm·Î °¨¼ÒÇÏ¿´°í, Ç¥¸é°ÅÄ¥±â´Â 300¡É ¿¡¼­ ÁõÂøÇÑ ¹Ú¸·ÀÌ 2.3nm ·Î °¡Àå ¿ì¼öÇÏ¿´´Ù. ¿­Ã³¸® ¿Âµµ°¡400¡É¿¡¼­ 650¡É ·Î Áõ°¡ÇÔ¿¡ µû¶ó ºñÀúÇ×Àº RuO2 ¹Ú¸·ÀÇ °áÁ¤¼º Çâ»óÀ¸·Î ÀÎÇØ °¨¼ÒÇÏ¿´´Ù. ÀÌµé °á°ú·ÎºÎÅÍ O2/(Ar O2) ºñ 20%, ±âÆǿµµ loot ¿¡¼­ ÁõÂøÇÑ RuO2 ¹Ú¸·ÀÇ Ç¥¸é°ÅÄ¥±â ¹× ºñÀúÇ× Æ¯¼ºÀÌ °¡Àå ¿ì¼öÇÏ¿© °­À¯Àüü ¹Ú¸·ÀÇ ÇϺÎÀü±ØÀ¸·Î »ç¿ëÇϱ⿡ ÀûÇÕÇÔÀ» ¾Ë ¼ö ÀÖ¾ú´Ù.
¿µ¹®³»¿ë
(English Abstract)
RuO2 thin films are prepared by RP magnetron reactive sputtering and their characteristics of crystalliBation,microstructure, surface roughness and resistivity are studied with various O2/(Ar O2)ratios and substrate temperatures. As O2/(Ar O2) ratio decreases and substrate temperature increases, the preferred growing plane of RuO2 thin films are changed from (110) to (101) plane. With increase of the O2/(Ar O2) ratio from 2075 to 50%, the surface roughness and the resistivity of RuO2 thin films increase from 2.38nm to 7.81nm, and from 103.6 ¥ì¥Ø-cm to 227 ¥ì¥Ø-cm, respectively, but the deposition rate decreases from 47nm/min to 17nm/min. On the other hand, as the substrate temperature increases from room temperature to 500¡É, resistivity decreases from 210.5 ¥ì¥Ø-cm to 93.7 ¥ì¥Ø-cm. RuO2 thin film deposited at 300¡É shows a excellent surface roughness of 2.38 m. As the annealing temperature increases in the range between 400¡É and 650¡É, the resistivity decreases because of the improvement of crystallinity. We find that RuO2 thin film deposited at 20% of O2/(Ar O2) ratio and 300¡É of substrate temperature shows excellent combination of surface smoothness and low resistivity so that it is well qualified for bottom electrode for ferroelectric thin films.
Å°¿öµå(Keyword)
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