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EP0262028A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Process for producing thin film planar structure magnetic heads, and head obtained by this process

Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1987-09-14
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Granted: —
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Expires: 2007-09-14
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Abstract

Abstract Translated from French Dans un substrat (10), on grave un caisson que l'on remplit par une couche magnétique (16). On forme un bobinage (20) dans une couche isolante (18) l'on forme des plots magnétiques (23, 24). Dans une couche isolante (32) on forme deux couches magnétiques (30, 31). Puis dans une couche dure (34) on forme deux pièces polaires (46, 48) déparées par un espaceur amagnétique (42). Application à la lecture et à l'enregistrement d'informations sur un support magnétique. In a substrate (10), a box is etched which is filled with a magnetic layer (16). A winding (20) is formed in an insulating layer (18), magnetic studs (23, 24) are formed. In an insulating layer (32) two magnetic layers (30, 31) are formed. Then in a hard layer (34) two pole pieces (46, 48) formed by a non-magnetic spacer (42) are formed. Application to the reading and recording of information on a magnetic medium.

Inventors

  • 👤 Jean-Pierre Lazzari

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-23 19:21
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/31; G11B5/3103; G11B5/3106; G11B5/3163; G11B5/3176; G11B5/3179; G11B5/3183; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49021; Y10T29/49032; Y10T29/49036; Y10T29/49043; Y10T29/49044; Y10T29/49046; Y10T29/4906; Y10T29/49064

Claims Analysis

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References Cited (Backward Citations)

US3672043A Cited
US4402801A Cited
JPS61115212A Cited

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