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Insulating Conductive Cores With TEFLON Tape

IP.com Disclosure Number: IPCOM000061562D
Original Publication Date: 1986-Aug-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

Splittstoesser, KE: AUTHOR

Abstract

The core of a conductive MgZn read/write head may be insulated using a small piece of TEFLON* tape. The core on the head is wound with a very fine wire that creates a small coil which produces a magnetic signal that is used to read and write on the surface of a magnetic disk. The wires in this coil are coated with a thin layer of insulation. If this insulation is removed or nicked when being wound around the core, any exposed wire coming in contact with the core will create a short.

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Insulating Conductive Cores With TEFLON Tape

The core of a conductive MgZn read/write head may be insulated using a small piece of TEFLON* tape. The core on the head is wound with a very fine wire that creates a small coil which produces a magnetic signal that is used to read and write on the surface of a magnetic disk. The wires in this coil are coated with a thin layer of insulation. If this insulation is removed or nicked when being wound around the core, any exposed wire coming in contact with the core will create a short. In a clean room environment where the transducer is mounted in a fixture with the rails or air bearing surfaces upward, the precut piece of TEFLON tape 5 is inserted through the window of the core and progressively wrapped around the core 6 of the head 7 by gripping the ends with a pair of curved-end metal tweezers 8, 9, as progressively shown in Figs. 1 and 2. The final position of the tape 5 is shown in Fig. 3, where the final free end of the tape is cut as close to the core as possible and pressed at edge 11. The core is now prepared for coil windings following which the movement of the twisted ends of the coil 13 adjacent the core can be prevented by the application of an adhesive at the locations 12, as shown in Fig. 4. * Trademark of E.I. du Pont de Nemours & Co.

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