Invention Grant
- Patent Title: Method of making a light emitting device having a molded encapsulant
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Application No.: US11834137Application Date: 2007-08-06
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Publication No.: US08092735B2Publication Date: 2012-01-10
- Inventor: D. Scott Thompson , Larry D. Boardman , Catherine A. Leatherdale
- Applicant: D. Scott Thompson , Larry D. Boardman , Catherine A. Leatherdale
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Agent Elizabeth A. Gallo
- Main IPC: H01L21/56
- IPC: H01L21/56

Abstract:
Disclosed herein is a method of making a light emitting device having an LED die and a molded encapsulant made by polymerizing at least two polymerizable compositions. The method includes: (a) providing an LED package having an LED die disposed in a reflecting cup, the reflecting cup filled with a first polymerizable composition such that the LED die is encapsulated; (b) providing a mold having a cavity filled with a second polymerizable composition; (c) contacting the first and second polymerizable compositions; (d) polymerizing the first and second polymerizable compositions to form first and second polymerized compositions, respectively, wherein the first and second polymerized compositions are bonded together; and (e) optionally separating the mold from the second polymerized composition. Light emitting devices prepared according to the method are also described.
Public/Granted literature
- US20080079182A1 METHOD OF MAKING A LIGHT EMITTING DEVICE HAVING A MOLDED ENCAPSULANT Public/Granted day:2008-04-03
Information query
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