| 摘要 |
PURPOSE:To prevent occurrence of chipping off of the edge section of a magnetic head so as to manufacture a highly reliable magnetic head, by forming a core block, from which the core of the magnetic head is manufactured by slicing, in such a way that after a pair of magnetic substance bodies are butt welded to each other track width controlling grooves are installed to the united body and glass is molded to the grooves. CONSTITUTION:A groove 21C is installed to one 21 of a pair of oxide magnetic substance bodies 21 and 22. Then gap spacers are formed on the gap forming surface of the magnetic bodies 21 and 22 by sputtering method, etc., and the magnetic bodies 21 and 22 are welded to each other with their gap forming surfaces by heating the spacers. Plural track width controlling grooves are then installed to the united magnetic substance body 25 and glass 26 is molded to the grooves. Thus, a core block 27 is formed. The core block 27 is sliced to manufacture cores. Since the track width controlling grooves are worked after the gap forming surfaces are finished, discrepancy in the track and chipping off of the edge section can be prevented. as a result, a highly accurate and highly reliable magnetic head can be manufactured. |
