Magnetic record/reproduce head and manufacturing method...

Details Magnetic record/reproduce head and manufacturing method... Magnetic record/reproduce head and manufacturing method...

G - Physics

11

B

352/29.7

G11B 5/187 (2006.01)

Patent

CA 1059623

MAGNETIC RECORD AND/OR REPRODUCE HEAD AND MANUFACTURING METHOD THEREFOR ABSTRACT OF THE DISCLOSURE Two magnetic ferrite pieces having longitudinal channels formed in the side faces thereof are bonded together with a gapping substance so that the resultant channels form a window. The bonded pieces are precisely slotted to a depth below the apex of the window to form a narrow track- defining comb-like array. The resulting slots are adapted to receive compatible ceramic wear support material which is so chosen as to wear slightly faster than the ferrite surfaces. In one embodiment, the slots contain ceramic- convertible glass which is devitrified by firing the array. The assembly is then processed lo form a ceramic- ferrite-ceramic or ceramic-ferrite transducer sandwich which may be further processed to form part of a magnetic record and/or reproduce head. -1-

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