FIELD ACCESS BUBBLE-TO-BUBBLE LOGIC OPERATIONS

被引：3

作者：

CARLSON, HN ^{[1
]}

PERNESKI, AJ ^{[1
]}

RAGO, LF ^{[1
]}

ROTHAUSER, GJ ^{[1
]}

WAGNER, WDP ^{[1
]}

机构：

[1] BELL TEL LABS INC, MURRAY HILL, NJ 07974 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1972年 / MAG8卷 / 03期

关键词：

DATA STORAGE; MAGNETIC;

D O I：

10.1109/TMAG.1972.1067433

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：

Bubble-to-bubble logic operations can greatly enhance the versatility of bubble memory devices. Experience has shown that logic operations reduce the device operating margins to a degree that would allow logic only where the ratio of memory sites to logic gates is greater than one hundred. For example, quasistatic rotating field operation of exclusive OR, AND/OR, and replicate gates was obtained for a plus or minus 3. 5 percent bias margin at 45 to 55 oe rotating field drive for an AND/OR gate to a plus or minus 1. 5 percent bias field margin at 50 to 60 oe rotating field drive for an exclusive OR gate. In all cases these devices were prepared by ion milling or chemical etching T-bar, Y-bar, or chevron patterns in 3000 to 5000 thick Permalloy films on glass. Abstract of Paper 15. 1, presented at the 1972 INTERMAG Conference, Kyoto, Japan, April 10-13.

引用

页码：367 / +

页数：1