Browse Prior Art Database

Head Package with Specific Head to Tape Interface Properties

IP.com Disclosure Number: IPCOM000087294D
Original Publication Date: 1977-Jan-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 47K

Publishing Venue

IBM

Related People

Cheatham, SD: AUTHOR [+2]

Abstract

The drawings show a magnetic head package with improved head-to-tape interface characteristics. The improved head/tape interface characteristics result from positioning a bleed slot and relief surface on the transducing surface of the magnetic head. The relief surface allows the air film to be bled from between the tape surface and the mount surface. The bleeding of this air film serves two purposes: (1) The relief surface begins the initial lowering of the tape over the core for low flying. (2) The relief surface allows a gradual change in the contour causing smoother, more stable performance of the head/tape interface. The final low flying of the tape over the head is achieved when the air film over the relief surface and around the core is bled into the bleed slot.

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Head Package with Specific Head to Tape Interface Properties

The drawings show a magnetic head package with improved head-to-tape interface characteristics. The improved head/tape interface characteristics result from positioning a bleed slot and relief surface on the transducing surface of the magnetic head. The relief surface allows the air film to be bled from between the tape surface and the mount surface. The bleeding of this air film serves two purposes: (1) The relief surface begins the initial lowering of the tape over the core for low flying. (2) The relief surface allows a gradual change in the contour causing smoother, more stable performance of the head/tape interface. The final low flying of the tape over the head is achieved when the air film over the relief surface and around the core is bled into the bleed slot. This package causes a stable head-to-tape interface with low flying height. Fig. 1 shows a rectangular piece of material (for example, ceramic) which is used for head mount 10.

In Fig. 2A, core slot 12 and bleed slot 14 are machined into head mount 10. Fig. 2B shows a core 16 (different core designs may be used with this package), which is capable of being seated in the core slot of Fig. 2A with the lower tang hanging into the bleed slot region.

Fig. 2C shows a composite view of core 16 seated in the core slot of head mount 10. Core 16 is seated in the core slot so that a portion of its upper surface, identified by numeral 18, protrudes ab...