Production of magnetic haed
专利汇可以提供Production of magnetic haed专利检索，专利查询，专利分析的服务。并且PURPOSE: To form back core wider in width than front core by etching magnetic core wafers by using resist films consisting of narrow width parts and broad width parts formed in plural rows on the butt surface of said wafer.
CONSTITUTION: Resistor films arrayed with narrow width parts 2a and broad width parts 3b in series are coated in plural rows on a magnetic core wafer 1 which is then etched therethrough. After the resists are removed, gap spacer films 7a of a desired thickness are deposited and deep grooves 9a are formed by working with a cutter in the grooves 8a having been formed by etching and glass inserting grooves 10
aWc and winding grooves 11
aWb . On the other hand, another sheet of wafer is formed similarily (except that the spacer films, glass inserting grooves and winding grooves are not provided) and is butted to the abovementioned wafer. After glasses 14
aWc are inserted into the grooves formed by both wafers 12, 13 and are fused, the assembly is cut at X-X', Y-Y', Z-Z' and the tape contact face is rounded by polishing, thence the assembly is cut at M-M', N-N', etc. to obtain the individual magnetic head cores.
COPYRIGHT: (C)1979,JPO&Japio，下面是Production of magnetic haed专利的具体信息内容。
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