A magnetic bubble memory has a reading zone with thin detection elements, coated with an insulating layer which carries thick bubble propagation patterns of high magnetic permeability material, and a bubble stretching zone also including thick propagation patterns of shapes such that the rotating field of the device causes {HEAD ~ the bubbles} to progress along {TAIL ~ the patterns} 
A magnetic bubble memory has a reading zone with thin detection elements , coated with an insulating layer which carries thick bubble propagation patterns of high magnetic permeability material , and a bubble stretching zone also including thick propagation patterns of shapes such that the rotating field of the device causes { HEAD ~ the bubbles } to progress along { TAIL ~ the patterns }
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