TY - GEN
T1 - Fast identification of operating current for toggle MRAM by spiral search
AU - Wang, Sheng Hung
AU - Chen, Ching Yi
AU - Wu, Cheng Wen
PY - 2010/9/7
Y1 - 2010/9/7
N2 - Magnetic Random Access Memory (MRAM) is a non-volatile memory which is widely studied for its high speed, high density, small cell size, and almost unlimited endurance. However, for deep-submicron process technologies, significant variation in MRAM cells' operating regions results in write failures in cells and reduces the production yield. Currently, memory designers characterize failed MRAM chips to find a suitable current level for reconfiguring their operating current, which is timeconsuming. In this paper, we propose an efficient operating current search method and a built-in circuit for toggle MRAM, which can rapidly find a customized operating current for each MRAM chip. With the built-in circuit, an MRAM chip can dynamically reconfigure its operating current automatically. Production yield and product life-time thus can be increased.
AB - Magnetic Random Access Memory (MRAM) is a non-volatile memory which is widely studied for its high speed, high density, small cell size, and almost unlimited endurance. However, for deep-submicron process technologies, significant variation in MRAM cells' operating regions results in write failures in cells and reduces the production yield. Currently, memory designers characterize failed MRAM chips to find a suitable current level for reconfiguring their operating current, which is timeconsuming. In this paper, we propose an efficient operating current search method and a built-in circuit for toggle MRAM, which can rapidly find a customized operating current for each MRAM chip. With the built-in circuit, an MRAM chip can dynamically reconfigure its operating current automatically. Production yield and product life-time thus can be increased.
UR - http://www.scopus.com/inward/record.url?scp=77956197003&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77956197003&partnerID=8YFLogxK
U2 - 10.1145/1837274.1837506
DO - 10.1145/1837274.1837506
M3 - Conference contribution
AN - SCOPUS:77956197003
SN - 9781450300025
T3 - Proceedings - Design Automation Conference
SP - 923
EP - 928
BT - Proceedings of the 47th Design Automation Conference, DAC '10
T2 - 47th Design Automation Conference, DAC '10
Y2 - 13 June 2010 through 18 June 2010
ER -