Characterization of high density spin valve recording heads by novel Magnetic Force Microscope

被引:5
作者
Qian, CX
Tong, HC
Liu, FH
Shi, X
Dey, S
Proksch, RB
Nielson, P
Hachfeld, E
机构
[1] Read Rite Corp, Fremont, CA 94539 USA
[2] Digital Instruments, MFM Zone, Santa Barbara, CA 93117 USA
关键词
Magnetoresistance Sensitivity Mapping (MSM); High Frequency Magnetic Force Microscope (HFMFM); GMR recording head;
D O I
10.1109/20.800917
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
High area density magnetic recording heads with Giant-MagnetoResistance (GMR) read sensors and Focus-Ion-Beam (FIB) trimmed inductive writers were studied with a special Magnetic Force Microscope (MFM). The MFM was equipped with a Magnetoresistance Sensitivity Mapping (MSM) component that directly measures the magnetoresistance of the reader sensor as a function of position, and a High Frequency MFM (HFMFM) capability that maps 3D high frequency writing field distribution. Good agreement between the MSM measurement and the spin stand tests were obtained MFM measurement offers unique high spatial resolutions not readily achievable with any other measurement techniques. It is the ideal tool for current and future high area density heads.
引用
收藏
页码:2625 / 2627
页数:3
相关论文
共 9 条
[1]   Characterisation of MFM tip fields by electron tomography [J].
Ferrier, RP ;
McVitie, S ;
Gallagher, A ;
Nicholson, WAP .
IEEE TRANSACTIONS ON MAGNETICS, 1997, 33 (05) :4062-4064
[2]   SPATIAL-MAPPING OF THE SENSITIVITY FUNCTION OF MAGNETIC RECORDING-HEADS USING A MAGNETIC FORCE MICROSCOPE AS A LOCAL FLUX APPLICATOR [J].
GIBSON, GA ;
SCHULTZ, S ;
CARR, T ;
JAGIELINSKI, T .
IEEE TRANSACTIONS ON MAGNETICS, 1992, 28 (05) :2310-2311
[3]  
LIU FH, INTERMAG 99
[4]   Measuring the gigahertz response of recording heads with the magnetic force microscope [J].
Proksch, R ;
Neilson, P ;
Austvold, S ;
Schmidt, JJ .
APPLIED PHYSICS LETTERS, 1999, 74 (09) :1308-1310
[5]   Quantitative magnetometry using electron holography: Field profiles near magnetic force microscope tips [J].
Streblechenko, DG ;
Scheinfein, MR ;
Mankos, M ;
Babcock, K .
IEEE TRANSACTIONS ON MAGNETICS, 1996, 32 (05) :4124-4129
[6]   STUDY OF TIP MAGNETIZATION BEHAVIOR IN MAGNETIC FORCE MICROSCOPE [J].
SUEOKA, K ;
OKUDA, K ;
MATSUBARA, N ;
SAI, F .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1991, 9 (02) :1313-1317
[7]   DIRECT MEASUREMENT OF THE SENSITIVITY DISTRIBUTION OF MAGNETORESISTIVE HEADS BY THE SXM TECHNIQUE [J].
SUEOKA, K ;
WAGO, K ;
SAI, F .
IEEE TRANSACTIONS ON MAGNETICS, 1992, 28 (05) :2307-2309
[8]  
TONG HC, INTERMAG 99
[9]   MAGNETIC FORCE MICROSCOPY OF RECORDING-HEADS [J].
WAGO, K ;
SUEOKA, K ;
SAI, F .
IEEE TRANSACTIONS ON MAGNETICS, 1991, 27 (06) :5178-5180