Method for producing a converter element, converter element and light emitting device
AssigneeOSRAM Opto Semiconductors GmbH
InventorsAlan Piquette, Maxim N. Tchoul, Gertrud Kräuter
Life of this patent
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Abstract
A method for producing a converter element, a converter element and a light emitting device are disclosed. In an embodiment a method for producing a converter element providing at least one phosphor and a liquid polysiloxane resin and preparing a cured polysiloxane powder from a first fraction of the liquid polysiloxane resin. The method further includes preparing a mixture including the at least one phosphor, the cured polysiloxane powder and a second fraction of the liquid polysiloxane resin, casting and curing the mixture to a cured layer and singulating the cured layer.
Claims12
A method for producing a converter element comprising:
- providing at least one phosphor and a liquid polysiloxane resin;
- preparing a cured polysiloxane powder from a first fraction of the liquid polysiloxane resin;
- preparing a mixture including the at least one phosphor, the cured polysiloxane powder and a second fraction of the liquid polysiloxane resin;
- casting and curing the mixture to a cured layer;
- and
- singulating the cured layer;
- wherein preparing the cured polysiloxane powder comprises curing the first fraction of the liquid polysiloxane resin at ambient conditions, heating and milling the cured polysiloxane resin.
A method for producing a converter element comprising:
- providing at least one phosphor and a liquid polysiloxane resin;
- preparing a cured polysiloxane powder from a first fraction of the liquid polysiloxane resin;
- preparing a mixture including the at least one phosphor, the cured polysiloxane powder and a second fraction of the liquid polysiloxane resin;
- casting and curing the mixture to a cured layer;
- and
- singulating the cured layer;
- wherein preparing the mixture comprises:
- preparing a first mixture by mixing the at least one phosphor and a portion of the second fraction of the liquid polysiloxane resin;
- and
- preparing a second mixture by mixing the cured polysiloxane powder and another portion of the second fraction of the liquid polysiloxane resin.
Dependencies are inferred from the claim text.