公开(公告)号：US20190027662A1

公开(公告)日：2019-01-24

申请号：US16067016

申请日：2016-12-13

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Iwan-Wahyu SAPUTRA ,  Yeow-Meng TEO

IPC分类号： H01L33/60 ,  H01L33/50 ,  H01L33/48

摘要： An array of light emitting devices is mounted on a support surface with the transparent growth substrate (e.g., sapphire) facing up. A photoresist layer is then deposited over the top surface of the growth substrate, followed by depositing a reflective material over the top and side surfaces of the light emitting devices to encapsulate the light emitting devices. The top surfaces of the light emitting devices are then ground down to remove the reflective material over the top surface of the photoresist. The photoresist is then dissolved to leave a cavity over the growth substrate having reflective walls. The cavity is then filled with a phosphor. The phosphor-converted light emitting devices are then singulated to form packaged light emitting devices. All side light is reflected back into the light emitting device by the reflective material and eventually exits the light emitting device toward the phosphor. The packaged light emitting devices, when energized, appear as a white dot with no side emission (e.g., no blue halo).