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EP0312466A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Process of manufacturing a silicon structure on isolator

Assignee: Orange SA
•
Filing: 1988-09-08
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Granted: —
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Expires: 2008-09-08
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Abstract

Abstract Translated from French La présente invention concerne un procédé de fabrication d'une structure de silicium sur isolant à partir d'une plaquette de silicium monocritallin, comprenant les étapes suivantes : former une couche de silicium poreux (3) sur une face de la plaquette (1) ; oxyder anodiquement le silicium poreux d'où il résulte qu'une couche d'oxyde de silicium (4) est formée à l'interface silicium-silicium poreux en conservant une partie supérieure de la couche poreuse non oxydée ; et, recristalliser la couche de silicium poreux restante par traitement thermique au voisinage de la température de fusion du silicium. The present invention relates to a method for manufacturing a silicon on insulator structure from a monocrystalline silicon wafer, comprising the following steps: forming a layer of porous silicon (3) on one face of the wafer (1); anodically oxidizing the porous silicon from which it results that a silicon oxide layer (4) is formed at the silicon-porous silicon interface while preserving an upper part of the non-oxidized porous layer; and recrystallize the remaining porous silicon layer by heat treatment in the vicinity of the melting temperature of the silicon.

Inventors

  • 👤 Guillermo Bomchil
  • 👤 Aomar Halimaoui
  • 👤 Roland Herino

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-28 11:33
CPC Classifications
H; H10; H10P; H10P14/00; H10P14/20; H10P14/38; H10P14/3802; H10P14/29; H10P14/2901; H10P14/2902; H10P14/2905; H10P14/32; H10P14/3202; H10P14/3238; H10P14/34; H10P14/3402; H10P14/3404; H10P14/3411; H10P14/3451; H10P14/3452; H10P14/3458; H10P90/00; H10P90/19; H10P90/1904; H10P90/1906; H10P90/191; H10W; H10W10/00; H10W10/10; H10W10/181

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