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US 5,208,716 AGranted
Magnetoresistant magnetic head for longitudinal recording and process for producing such a head
AssigneeCommissariat a l'Energie Atomique
InventorJean-Pierre Lazzari
Life of this patent
Estimating the term…
Abstract
Magnetoresistant magnetic reading head and process for producing the same. The head comprises a magnetoresistant strip beneath a magnetic spacer. This strip is obtained by etching using the spacer partly as a mask. Therefore, the magnetoresistant element is self-aligned with respect to the spacer and is buried beneath it. Such a device finds particular application in magnetic recording and reading.
Claims3
A magnetic reading head comprising:
- a horizontal lower magnetic layer;
- a horizontal upper magnetic layer interrupted by a gap filled with a non-magnetic spacer, said spacer having a predetermined length (L) and thickness;
- two magnetic vertical connectors connecting said lower and upper magnetic layer;
- a H-shaped magnetoresistant element with two large strips and a ribbon linking said two large strips, said ribbon being placed beneath said spacer and having a predetermined length (l) less than said predetermined length (L) of said spacer and a predetermined thickness equal to said predetermined thickness of said spacer;
- and
- two reading terminals connected to contacts made on said two large strips wherein said head being adapted to read a track written over a width 1 less than the width L of the track.
3 more elements
Dependencies are inferred from the claim text.