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1. WO2020115426 - MULTI-COLOUR ELECTROLUMINESCENT DISPLAY DEVICE AND METHOD FOR MANUFACTURING SUCH A DEVICE

Publication Number WO/2020/115426
Publication Date 11.06.2020
International Application No. PCT/FR2019/052907
International Filing Date 03.12.2019
IPC
H01L 27/15 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
27Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
15including semiconductor components with at least one potential-jump barrier or surface barrier, specially adapted for light emission
H01L 33/00 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
33Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
CPC
H01L 27/156
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
27Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
15including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission
153in a repetitive configuration, e.g. LED bars
156two-dimensional arrays
H01L 33/0062
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
33Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
005Processes
0062for devices with an active region comprising only III-V compounds
Applicants
  • COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES [FR]/[FR]
Inventors
  • CHARLES, Matthew
Agents
  • CABINET BEAUMONT
Priority Data
187236605.12.2018FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) MULTI-COLOUR ELECTROLUMINESCENT DISPLAY DEVICE AND METHOD FOR MANUFACTURING SUCH A DEVICE
(FR) DISPOSITIF D'AFFICHAGE ÉLECTROLUMINESCENT MULTI-COULEURS ET PROCÉDÉ DE FABRICATION D'UN TEL DISPOSITIF
Abstract
(EN)
The present description relates to a device comprising first and second electroluminescent cells respectively emitting in first and second wavelength ranges, wherein: - each cell comprises a stack of a first layer (105) of a first semiconductor material and a second layer (111) of a second semiconductor material having a different lattice parameter; - in the first cell, the first layer (105) is in contact with the second layer (111) over the entire surface of the cell; and - in the second cell, a mask (107) provided with a plurality of through nano-openings (109) interfaces between the first layer (105) and the second layer (111), the second layer (111) comprising a plurality of nano-pillars (115) of the second material which are arranged in the nano-openings of the mask and a coalesced layer extending over the entire surface of the cell on the side of the mask opposite the first layer (105).
(FR)
La présente description concerne un dispositif comportant des première et deuxième cellules électroluminescentes émettant respectivement dans des première et deuxième gammes de longueurs d'ondes, dans lequel : - chaque cellule comporte un empilement d'une première couche (105) d'un premier matériau semiconducteur et d'une deuxième couche (111) d'un deuxième matériau semiconducteur de paramètre de maille différent; - dans la première cellule, la première couche (105) est en contact avec la deuxième couche (111) sur toute la surface de la cellule; et - dans la deuxième cellule, un masque (107) muni d'une pluralité de nano-ouvertures traversantes (109) fait interface entre la première couche (105) et la deuxième couche (111), la deuxième couche (111) comportant une pluralité de nano-piliers (115) du deuxième matériau disposés dans les nano-ouvertures du masque et une couche coalescée s'étendant sur toute la surface de la cellule du côté du masque opposé à la première couche (105).
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