Method for making high density magnetic bubble domain system

Details Method for making high density magnetic bubble domain system Method for making high density magnetic bubble domain system

G - Physics

11

C

352/37.2

G11C 11/14 (2006.01) G11C 19/08 (2006.01) H01F 10/10 (2006.01) H01F 41/34 (2006.01)

Patent

CA 1071759

METHOD FOR MAKING HIGH DENSITY MAGNETIC BUBBLE DOMAIN SYSTEM Abstract of the Disclosure A method for making a high density magnetic bubble domain system including the functions of read, write, storage, transfer, and annihilation. Only three masking steps are required, of which only one requires critical alignment. The process makes use of the fact that magnetic disks can be placed on non ion implanted regions without adversely affecting the propagation properties of the implanted regions. Thus, the magnetic disks can be used to define ion implantation masks as well as for providing functions such as generation, propagation, reading, and annihilation. Magnetic elements for generation, storage and propagation, reading and annihilation are deposited in the same non-critical masking step, while all conductors used for writing, reading, and transfer are deposited by a single masking step requiring critical alignment.

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