| http://www.w3.org/ns/prov#value | - Then, as shown in FIG. 4c, on the insulation layer 31' of only the lapping control sensor, an insulation material is further deposited by using a lift off process or the like so as to form an insulation layer 31 having a thickness of for example 0.1 ??m or more, which is greater than that of the insulation layer in other areas.
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