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Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
ÀÓº£µðµå NAND-Çü Ç÷¡½Ã ¸Þ¸ð¸®¸¦ À§ÇÑ Built-In Self Repair |
¿µ¹®Á¦¸ñ(English Title) |
Built-In Self Repair for Embedded NAND-Type Flash Memory |
ÀúÀÚ(Author) |
±èÅÂȯ
ÀåÈÆ
Tae Hwan Kim
Hoon Chang
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¿ø¹®¼ö·Ïó(Citation) |
VOL 03 NO. 05 PP. 0129 ~ 0140 (2014. 05) |
Çѱ۳»¿ë (Korean Abstract) |
±âÁ¸ÀÇ ¸Þ¸ð¸®¿¡¼ ¹ß»ýÇÏ´Â ´Ù¾çÇÑ °íÀåµéÀ» °ËÃâÇϱâ À§ÇÑ ±â¹ýÀ¸·Î BIST(Built-in self test)°¡ ÀÖ°í °íÀåÀÌ °ËÃâµÇ¸é Spare¸¦ ÇÒ´çÇÏ¿© ¼ö¸®ÇÏ´Â BIRA(Built-in redundancy analysis)°¡ ÀÖ´Ù. ±×¸®°í BIST¿Í BIRA¸¦ ÅëÇÕÇÑ ÇüÅÂÀÎ BISR(Built-in self repair)¸¦ ÅëÇØ Àüü ¸Þ¸ð¸®ÀÇ ¼öÀ²À» Áõ°¡½Ãų ¼ö ÀÖ´Ù. ±×·¯³ª ÀÌÀü¿¡ Á¦¾ÈµÈ ±â¹ýµéÀº RAMÀ» À§ÇØ Á¦¾ÈµÈ ±â¹ýÀ¸·Î RAMÀÇ ¸Þ¸ð¸® ±¸Á¶¿Í Ư¼ºÀÌ ´Ù¸¥ NAND-Çü Ç÷¡½Ã ¸Þ¸ð¸®¿¡ »ç¿ëÇϱ⿡´Â NAND-Çü Ç÷¡½Ã ¸Þ¸ð¸®ÀÇ °íÀ¯ °íÀåÀÎ Disturbance¸¦ Áø´ÜÇϱ⠾î·Æ´Ù. µû¶ó¼ º» ³í¹®¿¡¼´Â NAND-Çü Ç÷¡½Ã ¸Þ¸ð¸®¿¡¼ ¹ß»ýÇÏ´Â Disturbance °íÀåÀ» °ËÃâÇÏ°í °íÀåÀÇ À§Ä¡µµ Áø´ÜÇÒ ÀÖ´Â BISD(Built-in self diagnosis)¿Í °íÀå ºí·ÏÀ» ¼ö¸®ÇÒ ¼ö ÀÖ´Â BISRÀ» Á¦¾ÈÇÑ´Ù.
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¿µ¹®³»¿ë (English Abstract) |
BIST(Built-in self test) is to detect various faults of the existing memory and BIRA(Built-in redundancy analysis) is to repair detected faults by allotting spare. Also, BISR(Built-in self repair) which integrates BIST with BIRA, can enhance the whole memory¡¯s yield. However, the previous methods were suggested for RAM and are difficult to diagnose disturbance that is NAND-type flash memory¡¯s intrinsic fault when used for the NAND-type flash memory with different characteristics from RAM¡¯s memory structure. Therefore, this paper suggests a BISD(Built-in self diagnosis) to detect disturbance occurring in the NAND-type flash memory and to diagnose the location of fault, and BISR to repair faulty blocks.
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Å°¿öµå(Keyword) |
NAND-Çü Ç÷¡½Ã ¸Þ¸ð¸®
BISD
BISR
Áø´Ü ¾Ë°í¸®Áò
Áߺ¹ ºÐ¼®
NAND-type Flash Memory
BISD
BISR
Diagnosis Algorithm
Redundancy Analysis
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