公开(公告)号：US3825885A

公开(公告)日：1974-07-23

申请号：US26675872

申请日：1972-06-27

Applicant: IBM

Inventor： HENDEL R ,  JAMBA T ,  KEEFE G ,  ROSIER L

IPC: G11C11/14 ,  G11C19/08

CPC classification number: G11C19/0816 ,  G11C19/0875

Abstract: A structure for increasing the reliability of a magnetic bubble domain memory system in which the operating margins of various components within the system are enlarged so that the margins of the components will have a larger area of overlap. For components in which a lessening of the effect of the bias field Hz is desirable (splitters, generators, corner propagation elements, etc.), a thin layer of magnetically soft material (for instance, permalloy) is provided which extends over the area of the magnetic sheet in which the component function takes place. This thin layer is in addition to the overlay elements used to provide the function. In a memory system, selectively placed ''''thin patches'''' of permalloy or strips of permalloy are used in the critical component areas to improve operating margins of these components.

Abstract translation: 一种用于增加气泡域存储系统的可靠性的结构，其中系统内的各种部件的操作余量被扩大，使得部件的边缘将具有更大的重叠面积。 对于其中希望减小偏置场Hz的影响（分离器，发生器，拐角传播元件等）的部件，提供了薄的软磁材料（例如坡莫合金），其延伸在 发生组件功能的磁性片。 这个薄层是用于提供功能的叠加元素的补充。 在存储器系统中，在关键部件区域中使用选择性地放置坡莫合金或坡莫合金条的“薄贴片”以改善这些部件的操作裕度。