07049159 is referenced by 55 patents and cites 19 patents.

A method for forming a luminescent layer on a light emitting semiconductor device includes positioning a stencil on a substrate such that a light emitting semiconductor device disposed on the substrate is located within an opening in the stencil, depositing a stenciling composition including luminescent material in the opening, removing the stencil from the substrate, and curing the stenciling composition to a solid state. The resulting light emitting device includes a stack of layers including semiconductor layers comprising an active region and a luminescent material containing layer having a substantially uniform thickness disposed around at least a portion of the stack. A surface of the luminescent material containing layer not adjacent to the stack substantially conforms to a shape of the stack. In one embodiment, the light emitting device emits white light in a uniformly white spatial profile.

Title
Stenciling phosphor layers on light emitting diodes
Application Number
10/703040
Publication Number
7049159 (B2)
Application Date
November 5, 2003
Publication Date
May 23, 2006
Inventor
Christopher H Lowery
Fremont
CA, US
Agent
Patent Law Group
Assignee
Lumileds Lighting U S
CA, US
IPC
H01L 21/40
H01L 21/00
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