Method to produce a display screen with a matrix of transistors provided with an optical mask
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United States of America Patent
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Jan 14, 1992
Issued Date -
N/A
app pub date -
Nov 2, 1989
filing date -
Nov 8, 1988
priority date (Note) -
Expired
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Abstract
Method for producing a display screen with a matrix of transistors provided with an optical mask. This method consists of depositing on a substrate (100) a layer of black polyimide (102) absorbing the visible light and followed by a layer of photosensitive resin, of insolating the resin through a mask masking the channels of the transistors to be embodied, of eliminating the zones insolated with the resin and the sub-adjacent zones of the polyimide, of depositing an ITO layer (106) on the unit, of eliminating the rest of the resin and the ITO surmounting said resin so as to form the drains/sources of the transistors, of successively depositing a layer of hydrogenated amorphous silicon (110), a layer of silicon nitride (112) and a layer of aluminium (114), then of photoengraving the stack of these layers so as to form the grid of the transistors, and finally to render passive the unit with a layer of silicon (116).
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- ETAT FRANCAIS, REPRESENTE PAR LE MINISTRE DES POSTES, DES TELECOMMUNICATIONS ET DE L'ESPACE (CENTRE NATIONAL D'ETUDES DES TELECOMMUNICATIONS);FRANCE TELECOM ETABLISSEMENT AUTONOME DE DROIT PUBLIC;L'ETAT FRANCAIS, REPRESENTE PAR LE MINISTRE DES POSTES, DES TELECOMMUNICATIONS ET DE L'ESPACE (CENTRE NATIONAL D'ETUDES DES TELECOMMUNICATIONS)
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Lebrun, Hugues | Trevou-Treguignec, FR | 31 | 325 |
Vinouze, Bruno | Port-Blanc, FR | 13 | 199 |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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