LED PACKAGE WITH RED-EMITTING PHOSPHORS

A process for fabricating a LED lighting apparatus includes disposing a composite coating on a surafce of a LED chip, The composite coating comprises a first composite layer having a manganese doped phosphor of formula I and a first binder and a second composite layer comprising a second phosphor co...

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Bibliographische Detailangaben
Hauptverfasser:	WEAVER, Stanton, Earl, CHOWDHURY, Ashfaqul Islam, MURPHY, James, Edward, GORCZYCA, Thomas, Bert, SETLUR, Anaunt, Achyut, GARCIA, Florencio
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES BASIC ELECTRIC ELEMENTS CHEMISTRY DYES ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:	A process for fabricating a LED lighting apparatus includes disposing a composite coating on a surafce of a LED chip, The composite coating comprises a first composite layer having a manganese doped phosphor of formula I and a first binder and a second composite layer comprising a second phosphor composition and a second binder. The first binder, the second binder or both include a poIy(meth)acrylate. Ax [MFy]:Mn4+... (I), wherein A is Li, Na. K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, AL Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the [MFy] ion; y is 5, 6 or 7.