MAGNETIC HEAD ASSEMBLY HAVING MULTIPLE SIMILARLY SHAPED LAYERS AND METHOD OF MANUFACTURING SAME

摘要

A magnetic head assembly for cooperating with a relatively moving magnetic medium and for reading and/or writing one or several tracks of magnetic information and for erasing the edges and old information adjacent the edges of the newly written track after it is written and the method for making the assembly is disclosed. The assembly comprises three similarly shaped layers; a middle layer of substantially constant width including a read/write magnetic core and a first non-magnetic spacer integrally secured thereto, a pair of outer layers secured against the sides of the middle layer in a sandwiched structure, each of the outer layers comprising an erase magnetic core having an end leg portion and a second non-magnetic spacer integrally secured to the erase core, the outer layers aligned similarly with respect to each other and opposite to the middle layer such that the second non-magnetic spacers contact the magnetic read/write core of the first layer, and a single erase coil disposed over respective end legs of the pair of erase cores.