Conformally coated light emitting devices and methods for providing the same
First Claim
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1. A light emitting structure, comprising:
- a semiconductor light emitting diode (LED) comprising an active region; and
a conformal phosphor coating comprising a first portion and a second portion, the first portion corresponding to at least one surface of the LED and the second portion extending from the first portion to form a conformal phosphor wing arranged around an edge of the LED, wherein the conformal phosphor wing coating includes a thickness in a range of about 30 μ
m to about 100 μ
m;
wherein the conformal phosphor coating comprises a first conformal coating that is applied to the LED and a second conformal coating that is applied to the first conformal coating.
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Abstract
Methods are disclosed including applying a conformal coating to multiple light emitters. The conformal coating forms in gap areas between adjacent ones of the light emitters. The plurality of light emitters are separated into individual light emitters. The individual light emitters include the conformal coating that extends to a space corresponding to respective gap areas. Light emitting structures are disclosed including a semiconductor light emitting diode (LED) having an active region and a conformal coating including a first portion and a second portion, the first portion corresponding to at least one surface of the LED and the second portion extending from the first portion.
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Citations
26 Claims
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1. A light emitting structure, comprising:
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a semiconductor light emitting diode (LED) comprising an active region; and a conformal phosphor coating comprising a first portion and a second portion, the first portion corresponding to at least one surface of the LED and the second portion extending from the first portion to form a conformal phosphor wing arranged around an edge of the LED, wherein the conformal phosphor wing coating includes a thickness in a range of about 30 μ
m to about 100 μ
m;wherein the conformal phosphor coating comprises a first conformal coating that is applied to the LED and a second conformal coating that is applied to the first conformal coating. - View Dependent Claims (2, 3, 4, 5)
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6. A light emitting structure, comprising:
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a semiconductor light emitting diode (LED) comprising an active region; and a conformal coating comprising a first portion and a second portion, the first portion corresponding to at least one surface of the LED and the second portion extending from the first portion to form a conformal coating ledge, wherein the second portion of the conformal coating includes a thickness in a range of about 30 μ
m to about 100 μ
m;wherein the LED comprises a conductive portion on a first surface of the LED. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A light emitting structure, comprising:
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a semiconductor light emitting diode (LED) comprising; an active region including an n-type layer and a p-type layer; a light emitting surface; a bonding surface that is opposite the light emitting surface; and an n-type pad and a p-type pad that are configured to be bonded to a bonding surface of a package that provides electrical connection to the n-type layer via the n-type pad and the p-type layer via the p-type pad; and a conformal phosphor coating on at least the light emitting surface, wherein the conformal phosphor coating includes a phosphor coating ledge extending from around an edge of the LED; wherein the conformal phosphor coating comprises a first conformal coating that is applied to the LED and a second conformal coating that is applied to the first conformal coating. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A light emitting structure, comprising:
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one or more semiconductor light emitting diodes (LEDs); and a conformal phosphor coating comprising a first portion and a second portion, the first portion corresponding to at least one surface of each of said LEDs and the second portion extending from the first portion to form a conformal phosphor wing around an edge of each of said LEDs; wherein said conformal phosphor wing is supported by each of said LEDs.
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Specification