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US 2014/0175492 A1Published application
Dense-luminescent-materials-coated violet leds
AssigneeSoraa, Inc.
InventorsFRANK M. STERANKA, RAFAEL ALDAZ, SESHASAYEE ANKIREDDI, TROY TROTTIER, ROHIT MODI, RAJARSHI SAHA
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Abstract
Techniques for fabricating and using arrays of violet-emitting LEDs coated with densely-packed-luminescent-material layers together with apparatus and method embodiments thereto are disclosed.
Claims20
A method for coating violet-emitting LED die with densely-packed-luminescent-materials, comprising:
- attaching an arrangement of a one or more violet-emitting LED die to a submount structure;
- applying a photoresist characterized by a thickness greater than a height of at least some of the one or more violet-emitting LED die;
- opening a first cavity hole in the photoresist around at least some of the one or more violet-emitting LED die;
- dispensing a luminescent material into the first cavity hole;
- and
- stripping the photoresist to provide one or more densely-packed-luminescent-materials coated violet-emitting LED die.
3 more elements
An apparatus comprising:
- a submount;
- a violet-emitting LED die attached to the submount, wherein the perimeter of the die forms an area;
- and
- a coating covering at least one surface of the violet-emitting LED die, wherein the coating comprises at least one luminescent material.
1 more element
An apparatus comprising:
- a lamp base;
- a submount;
- a violet-emitting LED die attached to the submount and electrically connected to the lamp base, wherein the perimeter of the violet-emitting LED die forms a triangular area;
- and
- a coating covering at least one surface of the violet-emitting LED die, wherein the coating comprises at least one luminescent material.
2 more elements
Dependencies are inferred from the claim text.