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1. FR2966980 - PROCÉDÉ DE FABRICATION DE CELLULES SOLAIRES, ATTÉNUANT LES PHÉNOMÈNES DE LID

Office France
Application Number 1058997
Application Date 02.11.2010
Publication Number 2966980
Publication Date 04.05.2012
Grant Number 2966980
Grant Date 12.07.2013
Publication Kind B1
IPC
H01L 31/18
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
31Semiconductor devices sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength, or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
18Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
CPC
H01L 21/3221
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
21Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
02Manufacture or treatment of semiconductor devices or of parts thereof
04the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
18the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
30Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
322to modify their internal properties, e.g. to produce internal imperfections
3221of silicon bodies, e.g. for gettering
H01L 31/1804
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
31Semiconductor devices sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus peculiar to the manufacture or treatment thereof or of parts thereof; Details thereof
18Processes or apparatus peculiar to the manufacture or treatment of these devices or of parts thereof
1804comprising only elements of Group IV of the Periodic System
H01L 31/186
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
31Semiconductor devices sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus peculiar to the manufacture or treatment thereof or of parts thereof; Details thereof
18Processes or apparatus peculiar to the manufacture or treatment of these devices or of parts thereof
186Particular post-treatment for the devices, e.g. annealing, impurity gettering, short-circuit elimination, recrystallisation
Y02E 10/547
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
10Energy generation through renewable energy sources
50Photovoltaic [PV] energy
547Monocrystalline silicon PV cells
Y02P 70/50
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
70Climate change mitigation technologies in the production process for final industrial or consumer products
50Manufacturing or production processes characterised by the final manufactured product
H01L 31/1864
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
31Semiconductor devices sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus peculiar to the manufacture or treatment thereof or of parts thereof; Details thereof
18Processes or apparatus peculiar to the manufacture or treatment of these devices or of parts thereof
186Particular post-treatment for the devices, e.g. annealing, impurity gettering, short-circuit elimination, recrystallisation
1864Annealing
Applicants COMMISSARIAT ENERGIE ATOMIQUE
Inventors POCHET PASCAL
DUBOIS SEBASTIEN
Priority Data 1058997 02.11.2010 FR
Title
(FR) PROCÉDÉ DE FABRICATION DE CELLULES SOLAIRES, ATTÉNUANT LES PHÉNOMÈNES DE LID
Abstract
(FR)
Pour réduire la dégradation par effet de LID du rendement de conversion des cellules photovoltaïques en silicium cristallin, on applique une ou des étapes d'introduction contrôlée de lacunes dans le silicium, par une ou des étapes choisies parmi les étapes suivantes : siliciuration, nitruration, implantation ionique, irradiation laser, contrainte mécanique en flexion appliquée sur une face du substrat silicium, en combinaison avec une température favorisant la formation lacunaire. Ces lacunes permettent de réduire la teneur en oxygène interstitiel, par un effet de diffusion de complexes VO et précipitation de l'oxygène. L'introduction des lacunes a pour autre effet de réduire la teneur en auto-interstitiels, et donc de limiter la formation de bore interstitiel. Les phénomènes de LID par activation de complexes B O sont ainsi limités. L'invention s'applique notamment aux cellules photovoltaïques à base de silicium monocristallin ou multicristallin, à forte concentration de bore et d'oxygène.