Newly developed inductive write head with electroplated CoNiFe film

被引：55

作者：

Ohashi, K ^{[1
]}

Yasue, Y

Saito, M

Yamada, K

Osaka, T

Takai, M

Hayashi, K

机构：

[1] NEC Ibaraki Ltd, Ibaraki, Osaka 30801, Japan

[2] NEC Corp, Fuchu, Tokyo 183, Japan

[3] Waseda Univ, Shinjuku Ku, Tokyo 169, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1998年 / 34卷 / 04期

关键词：

CoNiFe alloy; electroplating; corrosion resistance; high B-s material; MR head; write head;

D O I：

10.1109/20.706583

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：

A newly developed CoNiFe film is investigated from the viewpoint of its application to MR write heads. Film composition is Co65Ni12Fe23, prepared by electroplating to obtain a b.c.c. plus f.c.c. mixed phase at that composition. Films with mixed phases improve soft magnetic properties (B-s is 2.0-2.1 T and the magnetostriction coefficient is +1.8x10(-6) to +7.4x10(-6)) and also show improved corrosion resistance. Performance of a head with a double layer structure of a 0.3 mu m CoNiFe film and a 4.1 mu m NiFe film is investigated, and a short throat height is found to give better overwrite performance.

引用

页码：1462 / 1464

页数：3

共 10 条

[1] ANDERSON NC, 1987, Patent No. 4661216
[2] Chang J. W., 1992, Proceedings of the Second International Symposium on Magnetic Materials, Processes, and Devices, P275
[3] WRITING PERFORMANCE OF NARROW-GAP HEADS MADE WITH SPUTTERED LAMINATED FEN MATERIALS ON 3800-OE COERCIVITY MEDIA
HU, HL
VO, L
NGUYEN, T
ROBERTSON, N
RE, M
[J]. IEEE TRANSACTIONS ON MAGNETICS, 1994, 30 (06) : 3870 - 3872
[4] SOFT MAGNETISM OF HIGH-NITROGEN-CONCENTRATION FETAN FILMS
ISHIWATA, N
WAKABAYASHI, C
URAI, H
[J]. JOURNAL OF APPLIED PHYSICS, 1991, 69 (08) : 5616 - 5618
[5] FeN/Ta multilayers: Magnetic properties and application to magnetic recording heads
Kim, YK
Partee, C
[J]. IEEE TRANSACTIONS ON MAGNETICS, 1997, 33 (05) : 2815 - 2817
[6] HIGH MOMENT COFE THIN-FILMS BY ELECTRODEPOSITION
LIAO, SH
[J]. IEEE TRANSACTIONS ON MAGNETICS, 1987, 23 (05) : 2981 - 2983
[7] OSAKA T, IN PRESS NEW SOFT MA
[8] High performance write head using NiFe 45/55
Robertson, N
Hu, HL
Tsang, C
[J]. IEEE TRANSACTIONS ON MAGNETICS, 1997, 33 (05) : 2818 - 2820
[9] BATCH FABRICATION OF THIN-FILM MAGNETIC RECORDING HEADS - LITERATURE REVIEW AND PROCESS DESCRIPTION FOR VERTICAL SINGLE TURN HEADS
ROMANKIW, LT
SIMON, P
[J]. IEEE TRANSACTIONS ON MAGNETICS, 1975, MA11 (01) : 50 - 55
[10] RF-DIODE-SPUTTERED IRON NITRIDE FILMS FOR THIN-FILM RECORDING HEAD MATERIALS
WANG, S
KRYDER, MH
[J]. JOURNAL OF APPLIED PHYSICS, 1990, 67 (09) : 5134 - 5136

← 1 →