Method of manufacturing semiconductor light emitting device
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01L-033/62
H01L-033/36
H01L-033/44
H01L-021/02
H01L-033/22
H01L-033/40
H01L-033/00
출원번호
US-0056124
(2016-02-29)
등록번호
US-9466765
(2016-10-11)
우선권정보
KR-10-2015-0073728 (2015-05-27)
발명자
/ 주소
Yoon, Ju Heon
Kim, Yeon Ji
Kim, Yong Seok
Kim, Tae Kang
Kim, Tae Hun
출원인 / 주소
SAMSUNG ELECTRONICS CO., LTD.
대리인 / 주소
Sughrue Mion, PLLC
인용정보
피인용 횟수 :
0인용 특허 :
41
초록▼
A method of manufacturing a semiconductor light emitting device includes stacking a light emitting structure including a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer on a substrate; forming a first electrode and a second electrode o
A method of manufacturing a semiconductor light emitting device includes stacking a light emitting structure including a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer on a substrate; forming a first electrode and a second electrode on the first conductivity type semiconductor layer and the second conductivity type semiconductor layer, respectively; forming an insulating layer covering the first and second electrodes and having first and second openings partially exposing surfaces of the first and second electrodes, respectively; and performing a plasma treatment on a surface of the insulating layer and the partially exposed surfaces of the first and second electrodes to form an unevenness portion on the surface of the insulating layer and form an oxygen-depleted layer on the partially exposed surfaces of the first and second electrodes.
대표청구항▼
1. A method of manufacturing a semiconductor light emitting device, the method comprising: stacking a light emitting structure comprising a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer on a substrate;forming a first electrode and a
1. A method of manufacturing a semiconductor light emitting device, the method comprising: stacking a light emitting structure comprising a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer on a substrate;forming a first electrode and a second electrode on the first conductivity type semiconductor layer and the second conductivity type semiconductor layer, respectively;forming an insulating layer covering the first and second electrodes and having first and second openings partially exposing surfaces of the first and second electrodes, respectively; andperforming a plasma treatment on a surface of the insulating layer and the partially exposed surfaces of the first and second electrodes to form an unevenness portion on the surface of the insulating layer and form an oxygen-depleted layer on the partially exposed surfaces of the first and second electrodes. 2. The method of claim 1, wherein the plasma treatment is an Argon (Ar) plasma treatment or an H2 plasma treatment. 3. The method of claim 1, wherein the surface of the insulating layer has a root mean square (RMS) roughness of at least 5 Å. 4. The method of claim 1, further comprising: forming an electrode pad covering a region of the insulating layer and the oxygen-depleted layer. 5. The method of claim 4, wherein the forming of the electrode pad comprises forming the electrode pad by stacking metal layers. 6. The method of claim 5, wherein a selected metal layer among the metal layers is formed of a material comprising one or more of aluminum (Al), silver (Ag), or an alloy of Al or Ag. 7. The method of claim 6, further comprising providing the electrode pad such that the electrode pad contacts the oxygen-depleted layer. 8. The method of claim 7, further comprising providing the selected metal layer such that the selected metal layer contacts the oxygen-depleted layer. 9. The method of claim 4, further comprising: providing an under bump metallurgy (UBM) layer on the electrode pad. 10. The method of claim 1, wherein the insulating layer comprises a material selected from a group consisting of SiO2, SiOxNy, TiO2, Al2O3, ZrO2 and combinations thereof. 11. A method of manufacturing a semiconductor light emitting device, the method comprising: stacking a light emitting structure comprising a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer on a substrate;forming a first electrode and a second electrode on the first conductivity type semiconductor layer and the second conductivity type semiconductor layer, respectively;forming an insulating layer covering the first and second electrodes and having first and second openings partially exposing surfaces of the first and second electrodes, respectively; andperforming a plasma treatment on a surface of the insulating layer and the partially exposed surfaces of the first and second electrodes, in a single process. 12. The method of claim 11, wherein, the performing of the plasma treatment comprises performing the plasma treatment on the surface of the insulating layer and the partially exposed surfaces of the first and second electrodes multiple times. 13. The method of claim 12, wherein the performing of the plasma treatment multiple times comprises performing an Ar (Argon) plasma treatment or an H2 plasma treatment as a final plasma treatment among the multiple-performed plasma treatments. 14. The method of claim 11, wherein the performing of the plasma treatment on the surface of the insulating layer and the partially exposed surfaces of the first and second electrodes further comprises: providing a mask layer exposing the surfaces of the first and second electrodes and covering a portion of the surface of the insulating layer while performing the plasma treatment. 15. The method of claim 11, further comprising using a dry etching process to form the first and second openings. 16. A method of manufacturing a light emitting device, comprising: forming an insulating layer partially covering first and second electrodes stacked on a substrate, thereby leaving uncovered portions of the first and second electrodes; andperforming a single plasma treatment which simultaneously modifies a surface of the insulating layer and forms an oxygen-depleted layer on the uncovered portions. 17. The method of claim 16, wherein the performing of the single plasma treatment comprises modifying the surface of the insulating layer to have an uneven surface shape. 18. The method of claim 17, wherein the performing of the single plasma treatment comprises modifying the surface of the insulating layer to have dome-shaped protrusions. 19. The method of claim 16, further comprising: forming an electrode pad on the insulating layer,wherein the performing of the single plasma treatment comprises modifying the surface of the insulating layer to increase a surface area of the insulating layer which contacts the electrode pad.
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