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Ferrite Head Fabrication Process with Chamfered Core Disclosure Number: IPCOM000055297D
Original Publication Date: 1980-Jun-01
Included in the Prior Art Database: 2005-Feb-13

Publishing Venue


Related People

Kehr, WD Lakey, BR [+details]


The figure presents a construction flow chart for making a ferrite narrow-track recording head. In step 1, a core block is formed by bonding together two blocks of ferrite material. The ferrite blocks can be bonded together using a glass material, for instance, with at least one block having a cutout for the coil binding. In step 2, individual cores are sliced from the block formed in step 1. Each core 1 is then ground to an appropriate thickness (step 3). The core 1 is then permanently bonded to another block which acts as a shield 2 or a housing (step 4A). The core with the shield is then temporarily bonded to a chamfered support block 3 with the chamfered support block in turn being bonded to a lapping puck 4.