Invention Grant
- Patent Title: Manufacture of light emitting devices with phosphor wavelength conversion
- Patent Title (中): 制造具有磷光体波长转换的发光装置
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Application No.: US12782847Application Date: 2010-05-19
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Publication No.: US08227269B2Publication Date: 2012-07-24
- Inventor: Geng Chen , Jonathan Melman
- Applicant: Geng Chen , Jonathan Melman
- Applicant Address: US CA Fremont
- Assignee: Intematix Corporation
- Current Assignee: Intematix Corporation
- Current Assignee Address: US CA Fremont
- Agency: Fliesler Meyer LLP
- Main IPC: H01L21/00
- IPC: H01L21/00 ; H01L33/00

Abstract:
A method of manufacturing a light emitting device comprises: a) depositing over substantially the entire surface of a LED diode wafer having an array of LEDs formed on a surface thereof a mixture of at least one phosphor material and a polymer material, wherein the polymer material is transmissive to light generated by the LEDs and to light generated by the at least one phosphor material; b) mechanically stamping the phosphor/polymer mixture with a stamp having features configured such as to form passages in the phosphor/polymer corresponding to electrode contact pads of each LED thereby enabling access to each electrode contact pad; c) curing the polymer; d) removing the stamp; and e) dividing the LED wafer into individual light emitting devices. The stamp comprises a dissolvable material (polyvinyl alcohol) and the stamp is removed by dissolving it using a solvent (e.g. water).
Public/Granted literature
- US20100295078A1 MANUFACTURE OF LIGHT EMITTING DEVICES WITH PHOSPHOR WAVELENGTH CONVERSION Public/Granted day:2010-11-25
Information query
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