Browse Prior Art Database

Magnetic Head Manufacture

IP.com Disclosure Number: IPCOM000044098D
Original Publication Date: 1984-Nov-01
Included in the Prior Art Database: 2005-Feb-05
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Bachicha, MR: AUTHOR [+3]

Abstract

In the automated manufacture of magnetic recording heads, an electrically conductive path between the head's magnetic ferrite members and a ground plane is established by automatically delivering a small, low-melting pellet of an electrically conductive material to a location adjacent the ferrite member and a ground plane member, and then subjecting the pellet to heat. It is necessary to provide an electrically conductive path, or joint, between a magnetic head's core and its adjoining metal mounting platform. This path acts as a static-charge bleed-off path from the head to the platform or ground plane. In an automated process, the head's core legs are automatically inserted through holes in the metal platform. A solid pellet of a composite material (for example, a low temperature melting wax, plastic, epoxy resin, etc.

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Magnetic Head Manufacture

In the automated manufacture of magnetic recording heads, an electrically conductive path between the head's magnetic ferrite members and a ground plane is established by automatically delivering a small, low-melting pellet of an electrically conductive material to a location adjacent the ferrite member and a ground plane member, and then subjecting the pellet to heat. It is necessary to provide an electrically conductive path, or joint, between a magnetic head's core and its adjoining metal mounting platform. This path acts as a static-charge bleed-off path from the head to the platform or ground plane. In an automated process, the head's core legs are automatically inserted through holes in the metal platform. A solid pellet of a composite material (for example, a low temperature melting wax, plastic, epoxy resin, etc., which is filled with electrically conductive particles or powder, such as aluminum, iron, copper, silver, carbon, etc.) is automatically fed to a location adjacent a core leg and the metal platform. Once the pellet is so positioned, a heat source, such as a focused beam of light, is automatically applied to the pellet. The pellet then melts to produce an electrical connection between the core leg and the metal platform.

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