Invention Grant
- Patent Title: Formation of elastomeric layer on selective regions of light emitting device
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Application No.: US16402132Application Date: 2019-05-02
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Publication No.: US10566220B2Publication Date: 2020-02-18
- Inventor: Pooya Saketi , Patrick Joseph Hughes , William Padraic Henry , Joseph O'Keeffe
- Applicant: Facebook Technologies, LLC
- Applicant Address: US CA Menlo Park
- Assignee: Facebook Technologies, LLC
- Current Assignee: Facebook Technologies, LLC
- Current Assignee Address: US CA Menlo Park
- Agency: Fenwick & West LLP
- Main IPC: H01L33/20
- IPC: H01L33/20 ; H01L27/12 ; H01L21/67 ; B65G47/90 ; H01L25/075 ; H01L33/10 ; H01L33/00 ; H01L27/15 ; H01L33/44 ; H01L33/58

Abstract:
A light emitting diode (LED) includes an elastomeric material that facilitates adhesive attachment with a pick-up head for pick and place manufacturing operations. The LED includes an epitaxial layer defining a mesa structure and a light emitting surface. The mesa structure includes an active layer to emit light, and the emitted light is reflected at the mesa structure toward a light emitting region of the light emitting surface and transmitted at the light emitting region. An elastomeric material is on a portion of the light emitting surface, such as the light emitting region or a passive region. At the light emitting region, the elastomeric material may be shaped as a lens that collimates light transmitted from the light emitting region, and also facilitates adhesion to the pick-up head. At the passive region, the elastomeric material facilitates adhesion to the pick-up head without interfering with light emitted from the light emitting region.
Public/Granted literature
- US20190259643A1 FORMATION OF ELASTOMERIC LAYER ON SELECTIVE REGIONS OF LIGHT EMITTING DEVICE Public/Granted day:2019-08-22
Information query
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