发明申请
US20090179207A1 Flip-chip phosphor coating method and devices fabricated utilizing method
有权
倒装芯片荧光粉涂布方法和使用方法制造的器件
- 专利标题: Flip-chip phosphor coating method and devices fabricated utilizing method
- 专利标题(中): 倒装芯片荧光粉涂布方法和使用方法制造的器件
-
申请号: US12008477申请日: 2008-01-11
-
公开(公告)号: US20090179207A1公开(公告)日: 2009-07-16
- 发明人: Ashay Chitnis , James Ibbetson , Bernd Keller
- 申请人: Ashay Chitnis , James Ibbetson , Bernd Keller
- 专利权人: CREE, INC.
- 当前专利权人: CREE, INC.
- 主分类号: H01L33/00
- IPC分类号: H01L33/00
摘要:
Methods for fabricating light emitting diode (LED) chips one of which comprises flip-chip mounting a plurality of LEDs on a surface of a submount wafer and forming a coating over said LEDs. The coating comprising a conversion material at least partially covering the LEDs. The coating is planarized to the desired thickness with the coating being continuous and unobstructed on the top surface of the LEDs. The LEDs chips are then singulated from the submount wafer. An LED chip comprising a lateral geometry LED having first and second contacts, with the LED flip-chip mounted to a submount by a conductive bonding material. A phosphor loaded binder coats and at least partially covers the LED. The binder provides a substantially continuous and unobstructed coating over the LED. The phosphor within the coating absorbs and converts the wavelength of at least some of the LED light with the coating planarized to achieve the desired emission color point of the LED chip.
公开/授权文献
信息查询
IPC分类: