Browse Prior Art Database

Wedge Signal Amplifier for Orthoferrite Devices

IP.com Disclosure Number: IPCOM000074490D
Original Publication Date: 1971-May-01
Included in the Prior Art Database: 2005-Feb-23
Document File: 2 page(s) / 28K

Publishing Venue

IBM

Related People

Bogholtz, WE: AUTHOR [+5]

Abstract

The drawing shows a pattern of conductors on an orthoferrite wafer 2 for sensing the presence or absence of a bubble in a conductive loop 3. A conductive loop 4 is pulsed to transfer the bubble from loop 3 to loop 4. Loop 4 is positioned over a wedge shaped scratch 5 in the surface of wafer 2. When loop 4 is pulsed, it draws the bubble into the general area of wedge 5 and it supplies sufficient energy to a bubble to expand it to fill wedge 5. The current in loop 4 is then reversed to collapse the bubble. The voltage associated with the bubble collapse or the absence of such voltage is detected on a third loop 6. The wedge shape provides an accurate and controlled expansion of the bubble, and it permits high-density circuits on the orthoferrite wafer.

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Wedge Signal Amplifier for Orthoferrite Devices

The drawing shows a pattern of conductors on an orthoferrite wafer 2 for sensing the presence or absence of a bubble in a conductive loop 3. A conductive loop 4 is pulsed to transfer the bubble from loop 3 to loop 4. Loop 4 is positioned over a wedge shaped scratch 5 in the surface of wafer 2. When loop 4 is pulsed, it draws the bubble into the general area of wedge 5 and it supplies sufficient energy to a bubble to expand it to fill wedge 5. The current in loop 4 is then reversed to collapse the bubble. The voltage associated with the bubble collapse or the absence of such voltage is detected on a third loop 6. The wedge shape provides an accurate and controlled expansion of the bubble, and it permits high-density circuits on the orthoferrite wafer.

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