公开(公告)号：US3881190A

公开(公告)日：1975-04-29

申请号：US39921873

申请日：1973-09-20

Applicant: IBM

Inventor： BROCK GEORGE W ,  SHELLEDY FRANK B ,  SMITH SIDNEY H ,  WILLS ARTHUR B

IPC: G11B5/33 ,  G11B5/39 ,  G11B5/16 ,  G11B5/22

CPC classification number: G11B5/39 ,  G11B5/332

Abstract: A magnetoresistive (MR) head with an unusually desirable spatial resolution includes a shield on each side of the MR element. Information is carried on a magnetizable medium as recorded magnetic areas. The shields are spaced apart by a distance on the order of and less than the shortest recorded wavelength for which the head is meant to be used. The MR element and the shields have their edges nearest the medium in a common plane perpendicular to the vertical component of a signal from the recorded area. An additional shunt bias layer may be provided immediately adjacent and coextensive the MR element, and the head may serve one or many tracks.

Abstract translation: 具有异常期望的空间分辨率的磁阻（MR）头包括在MR元件的每一侧上的屏蔽。 信息在可磁化介质上作为记录磁区进行。 屏蔽物隔开一定距离并且小于头部意图使用的最短记录波长的距离。 MR元件和屏蔽件在垂直于来自记录区域的信号的垂直分量的公共平面中具有最靠近介质的边缘。 附加的分流偏置层可以紧邻MR元件并且共同延伸，并且头可以用于一个或多个轨道。