Published August 7, 1981 | Version v1
Patent

Rapid doping process of semiconductors

Description

This invention presents different methods for implanting particles in a substrate for fast doping of semiconductors. The implantation may be done by an interaction between a laser beam and a target composed of the doping substance, by a plasma accelerator enabling the beam of ions to be focused, by a reflexion triode, by a diode composed of a cathode and an anode placed in a magnetic field perpendicular to the electric field created between the cathode and the anode composed of a doping substance, by a diode constituted by a cathode emitting electrons, these electrons are picked up by a round shape anode and made of the doping substance, the interaction of the electrons with the anode enabling the focused beam of ions to be produced, by a source of spark discharge under vacuum, or by a supersonic release of steam through a nozzle in vacuo. The particles can also be combined with another beam of particles or accelerated under an electric field

Availability note (English)

Available from Institut National de la Propriete Industrielle, Paris (France).

Abstract (French)

Cette invention presente differents processus d'implantation de particules dans un substrat permettant un dopage rapide des semi-conducteurs. L'implantation peut se faire: a partir d'une interaction entre un faisceau laser et une cible constituee du materiau dopant, a l'aide d'un accelerateur a plasma permettant la focalisation du faisceau d'ions, a l'aide d'une triode a reflexion, a l'aide d'une diode constituee d'une cathode et d'une anode placee dans un champ magnetique perpendiculaire au champ electrique cree entre la cathode et l'anode constituee en materiau dopant, a l'aide d'une diode constituee d'une cathode qui emet des electrons, ces electrons sont captes par une anode de forme arrondie et constituee du materiau dopant, l'interaction des electrons avec l'anode permettant la production du faisceau d'ions focalise, a l'aide d'une source de decharge a etincelle sous vide, par une detente supersonique de vapeur a travers une buse dans le vide. Les particules peuvent etre egalement combinees a un autre faisceau de particules ou accelerees sous champ electrique

Additional details

Additional titles

Original title (French)
Procede de dopage rapide de semi-conducteurs

Publishing Information

Imprint Pagination
15 p.
IPC:
Int. Cl. C30b31/22; H01l21/265; H01l31/18.
IPC
Int. Cl. C30b31/22; H01l21/265; H01l31/18.
Patent number
FR patent document 2475069/A/

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
13672778
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
DOPED MATERIALS; ION IMPLANTATION; SEMICONDUCTOR MATERIALS