A disk drive in which magnetic head-to-disk capacitive coupling is eliminated

摘要: A thin film magnetic data transducer which prevents capacitive coupling between the and disk of a drive system, has circuit is maintained at same potential as disk, usually ground potential. With pole tips potential, charging consequent current flow or arcing discharge noise two are prevented. Noise from due to variable coil during rotation also eliminated. The fabricated by depositing successive layers an electrical insulating material, conducting material for planar coil, in order named on substrate. comprises spiral turns joined with each other within encircle providing gap outside coil. extension part connects frame disks,