| 摘要 |
PURPOSE:To obtain a narrow track magnetic head having an excellent electromagnetic conversion characteristic, by allowing an Mn-Zn ferrite and a nonmagnetic ceramic to adhere to each other with glass. CONSTITUTION:An Mn-Zn ferrite consisting of 50-55mol% iron oxide, 26- 35mol% zinc oxide, and the rest of a manganese oxide and various additives and a nonmagnetic ceramic where an average coefficient of thermal expansion at 0-400 deg.C is 80-110X10<-7> are used, and both of them are allowed to adhere to each other with glass having a softening point of 501-600 deg.C. A recording/ reproducing head A and an erasing head B are produced from an obtained block material having no cracks, and a slider 5 consisting of a nonmagnetic ceramic is allowed to adhere to them, thus producing a magnetic head. |
