JPS58146085A - Block replicator - Google Patents

Abstract

PURPOSE:To execute summarized dividing of bubbles, by arranging the 1st conductor having a waveform for extending bubbles and the 2nd conductor for dividing bubbles between a major loop and minor loops in such a way that they cross each other through an insulating layer. CONSTITUTION:A conductor 1 having a waveform for extending bubbles and another conductor 2 for dividing bubbles are arranged between a major loop 10 and minor loops 11 formed by ion implantation in such a way that they cross each other with an insulating layer in between. Therefore, the summarized dividing of bubbles are made possible and the operation margin of this block replicator can be widened as a block replicator which can sufficiently operate even in a high-bias magnetic field.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a block replicator for ion implanted magnetic bubble memory devices.

Conventionally, in magnetic puzzle elements, in order to transfer magnetic bubbles (hereinafter simply referred to as bubbles), T-perbatan,
YY Burn, Toru vh is made by forming a zero-shaped permalloy piece such as asymmetrical Que Bronbur on magnetic garnet.
vhta (hereinafter referred to as permilion vise), Shikashih
In the magnetic bubble element #C using a permalloy transfer burn such as ce), the bubble diameter @ 2 am earK
Reducing the size to below was very difficult in terms of lithography technology and drive technology for forming the padding. In 1970, an ion-implanted Continuous Disk Bubble device (hereinafter referred to as a CD device) was proposed as a method for obtaining a higher density magnetic bubble device.

The basic concept behind magnetic bubble V transfer using an ion-implanted layer was proposed by N.I.B.
@dIngs) No. 104! 18339 page (1971
41) as a paper by Welfe et al. Also.

Ion implantation magnetic pagourme 9 elements OfR 1cm and s IBvo Lin et al.
aas-on Magnetics) Volume 15, Volume 16
42 pages (1979) and The Bell System Technical Journal (T.
he Bel18system Technical
Journal )I! ! 59-1) 229th page (
192,101) and other papers.

Conventionally, in permalloy devices, various replicators and block replicators have been developed and put into practical use, and they are useful for shortening the cycle time and improving reliability of the device. However, block replicators for CD devices have not yet been developed. And this ninety-seven development is a CD
This is an important factor in achieving a device configuration comparable to a Ver. 10 device.

The object of the present invention is to provide a newly developed contiguous disk block replicator.

According to the present invention, a single layer or multilayer magnetic llI! capable of retaining magnetic bubbles is provided. In order to extend the magnetic bubble between the major and minor loops, a waveform is created to wrap around the minor loop. The conductors of the WJl are arranged in a plurality of minor loops, and the second conductors intersect with the first conductor and are arranged through a total insulation layer to divide the magnetic bubbles. 11 of the present invention is obtained with reference to the drawings. A weaving example will be explained.

FIG. 1 is a button layout diagram showing one embodiment of the present invention.A method for forming an ion implantation pattern is well known. Between the major loop 10 and the minor loop 110 formed by ion implantation, a finely corrugated conductor 1 for expanding the bubble and a tth conductor 2 for dividing the bubble are placed in separate layers so as to cross each other. The operation of the present invention will be explained using a diagram of the primary structure of the present invention, which is constructed by placing insulating layers in between.

Figure 2 (a) F1 state when the rotating magnetic field H1 is applied in the direction of the arrow! ! If we use the right side of the 0 diagram as the phase reference, we get 1.
With phase e = 80-~90'', the chasitic walls 20 and 21 become stable in the major loop 10 and the minor loop 11, respectively.The bubbles 22 of each minor loop are attracted to the chasitic wall 21 and deformed. Figure 2 shows the state in which a stretching current ■1 is passed through the stretched conductor 4 when the phase is close to 90°. 2
2Fi is stretched and extends across the divided conductor 2 along the stretched conductor 1 to become safe. Next, Fig. 2 (1c) is shown in Fig. 2 (b).
) is extended to the bubble 22 shown in FIG.
The 7-divided current I indicates the state of 71 when the divided current IC flows.
C goes to the split conductor button 20 γ pin ycr) Bubble 2 inside
2 [The waveform and length of the current are as shown in Fig. 3, and the current is passed so as to generate a magnetic field in the erasing direction.7 In Fig. 3, the phase of the divided electric current flLIC is near θ = 120°. Due to the magnetic field caused by the large rising current at , the expanded bubble 22 is split into two on each minor loop, forming bubbles 23 and 24. After this, the latter half of the divided current IC continues to flow through the divided conductor button 2 until just before the phase θ-270''', and a peak of potential is formed on the right side of the 1 divided conductor button, so that the bubble is divided into two. bubble 24
is blocked here. - Ten thousand puzzles 23 are attracted to the charsite wheel 21 and continue to move as shown in Figure 2 (
d) shows that all the currents Ii*Ict-off-5**0 The first half bubble 23 of the zero-divided bubbles is attracted to the charsite wall and continues to move until it reaches the next cusp. The bubble 24 in the latter half is an extended conductor button 20
Although it was blocked in front, it was eventually attracted to the charge loop 20 that appeared in the major loop 10 and stabilized there. Minor loop 11 holds bubble 23 where bubble 22 should be, and major loop l
Bubbles 24 corresponding to each inner loop are obtained on O. Therefore, there is no need to return to the minor loop again after detecting a series of bubbles 24. In this way, two conductor pirns are placed at 15 that intersect each other between the major and minor loops, and the extension 1 division By passing a current of 1, bubbles can be split all at once. Also.

In this method, the bubble is expanded and the nine-shaped I! #C is maintained by the magnetic field caused by the current Is, which is sufficient to operate in a high bias magnetic field in which the bubble is difficult to expand rJ,
The operating margin as a block replicator is 1,000 f-
It can be made wider than a book using only a sheet wall. Also, the non-example can be used as a bubble eraser on the minor loop. Second flash (al V
In the state shown in c, the divided current T is applied to the divided conductor button 2.
The erase current IAt flows in the same direction as C♂, and the t bubble of the magnetic field caused by the split conductor button 2 is erased.

As explained above, if the present invention is applied, a block/+1 blicator that divides all the bubbles on the minor loop at once can be obtained. Furthermore, the present invention is effective not only for the circular transfer button shown in the embodiment, but also for transfer buttons of triangular, square, and other shapes. It goes without saying that the shape of the second conductor can be modified in accordance with the spirit of the present invention, not just the shape shown in this embodiment.

[Brief explanation of the drawing]

1st rpJ is a button layout diagram showing an example of non-inventive hair, FIG. 2(a) ~ 1altf! '! Figure 1 is a state diagram showing Q operation, and Figure 3 is a current timing diagram. In the figure, 1 is an extended conductor button, 2 is a divided conductor button, and 10i'! Major loop, l lit! Minor loop, 20, 21 is Charsito wall, 22.23
．． 24 is a magnetic puzzle: 1 o 1 bile 2 prisoners (a) t 21! ] <c> Age 5 factor 1F8 (degree)

Claims (1)

[Claims] In a major/inner type magnetic bubble element in which a means for transporting magnetic bubbles is formed by ion implantation into a single-layer or multilayer magnetic film capable of holding magnetic bubbles, Place the corrugated first conductor over multiple minor loops so that each minor loose tip is gold-colored. Also, a 2nd V conductor intersecting the #ll conductor is arranged with an insulating layer interposed therebetween! Features block replicator.