STT MRAM patterning challenges

被引:17
作者
Boullart, Werner
Radisic, Dunja
Paraschiv, Vasile
Cornelissen, Sven
Manfrini, Mauricio
Yatsuda, Koichi
Nishimura, Eiichi
Ohishi, Tetsuya
Tahara, Shigeru
机构
来源
ADVANCED ETCH TECHNOLOGY FOR NANOPATTERNING II | 2013年 / 8685卷
关键词
MAGNETIC TUNNEL-JUNCTION; ETCH CHARACTERISTICS;
D O I
10.1117/12.2013602
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this paper we report on the patterning challenges for the integration of Spin-Transfer Torque Magneto-Resistive-Random-Access Memory (STT MRAM). An overview of the different patterning approaches that have been evaluated in the past decade is presented. Plasma based etching, wet echting, but also none subtractive pattering approaches are covered. The paper also reports on the patterning strategies, currently under investigation at imec.
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页数:9
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共 21 条
  • [1] Magnetic tunnel junction pattern technique
    Chen, E
    Schwarz, B
    Choi, CJ
    Kula, W
    Wolfman, J
    Ounadjela, K
    Geha, S
    [J]. JOURNAL OF APPLIED PHYSICS, 2003, 93 (10) : 8379 - 8381
  • [2] Effect of patterning on the saturation magnetization in MgO based nanopillars
    Cornelissen, S.
    Bianchini, L.
    Helmer, A.
    Devolder, T.
    Kim, Joo-Von
    de Beeck, M. Op
    Van Roy, W.
    Lagae, L.
    Chappert, C.
    [J]. JOURNAL OF APPLIED PHYSICS, 2009, 105 (07)
  • [3] Spin torque switching of 20 nm magnetic tunnel junctions with perpendicular anisotropy
    Gajek, M.
    Nowak, J. J.
    Sun, J. Z.
    Trouilloud, P. L.
    O'Sullivan, E. J.
    Abraham, D. W.
    Gaidis, M. C.
    Hu, G.
    Brown, S.
    Zhu, Y.
    Robertazzi, R. P.
    Gallagher, W. J.
    Worledge, D. C.
    [J]. APPLIED PHYSICS LETTERS, 2012, 100 (13)
  • [4] Ultra-thin Co/Pd multilayers with enhanced high-temperature annealing stability
    Gottwald, M.
    Lee, K.
    Kan, J. J.
    Ocker, B.
    Wrona, J.
    Tibus, S.
    Langer, J.
    Kang, S. H.
    Fullerton, E. E.
    [J]. APPLIED PHYSICS LETTERS, 2013, 102 (05)
  • [5] Evolution of Etch Profile of Magnetic Tunnel Junction Stacks Etched in a CH3OH/Ar Plasma
    Kim, Eun Ho
    Lee, Tae Young
    Chung, Chee Won
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2012, 159 (03) : H230 - H234
  • [6] Investigation on Etch Characteristics of Nanometer-Sized Magnetic Tunnel Junction Stacks Using a HBr/Ar Plasma
    Kim, Eun Ho
    Bin Xiao, Yu
    Kong, Seon Mi
    Chung, Chee Won
    [J]. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2011, 11 (07) : 6616 - 6620
  • [7] Kim J. N., 2012, MAT RES SOC S P, V1458
  • [8] REACTIVE ION ETCHING OF FE-SI-AL ALLOY FOR THIN-FILM HEAD
    KINOSHITA, K
    YAMADA, K
    MATSUTERA, H
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 1991, 27 (06) : 4888 - 4890
  • [9] Etching Magnetic Tunnel Junction with Metal Etchers
    Kinoshita, Keizo
    Utsumi, Hiroaki
    Suemitsu, Katsumi
    Hada, Hiromitsu
    Sugibayashi, Tadahiko
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS, 2010, 49 (08)
  • [10] Lide D. R., 2004, HDB CHEM PHYS