| 摘要 |
A requisite number of bezels or recesses in a non-permeable substance holding member, for example, a ceramic glass, are filled with magnetic chips, and the non-permeable substance is crystallized or sintered. In process of crystallizing or sintering, the non-permeable substance contracts and firmly holds the magnetic chips. Preferably, some glaze is previously put in the gap between a wall of the bezel and the chip. Magneto-electric converting means, for example, a Hall element, is vapor deposited onto each chip and aligned so as to correspond with each track of a magnetic tape. And then the other non-permeable substance holding member which holds one or more magnetic substance chips with, correspondingly, the magneto-electric converting means is united with the above-mentioned non-permeable substance holding member in order that each magneto-electric converting means is positioned in a gap between the corresponding chips, and a magnetic circuit is formed.
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