Invention Grant
- Patent Title: LED package using electroform stencil printing
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Application No.: US15851401Application Date: 2017-12-21
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Publication No.: US10686109B2Publication Date: 2020-06-16
- Inventor: Sridevi A. Vakkalanka , S. Rao Peddada
- Applicant: Lumileds LLC
- Applicant Address: US CA San Jose
- Assignee: Lumileds LLC
- Current Assignee: Lumileds LLC
- Current Assignee Address: US CA San Jose
- Agency: Volpe and Koenig, P.C.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@22ea49b7
- Main IPC: H01L33/62
- IPC: H01L33/62 ; H01L33/60 ; B23K31/02 ; H01L33/48 ; B23K3/06 ; B23K1/00

Abstract:
A method for manufacturing light emitting devices, comprising: providing a package body including: (i) a reflector cup defining a cavity and (ii) a plurality of metal pads disposed at a bottom surface of the cavity; performing reservoir stencil printing to deposit a respective solder pattern on each of the metal pads, the reservoir stencil printing being performed using a 3D electroform stencil that is placed over the reflector cup, the 3D electroform stencil including a lip configured to engage one or more sidewalls of the reflector cup, and a reservoir extending away from the lip and into the cavity; placing an LED die on the solder patterns that are formed on the metal pads and performing reflow soldering to attach the LED die to the metal pads.
Public/Granted literature
- US20180190889A1 LED PACKAGE USING ELECTOFORM STENCIL PRINTING Public/Granted day:2018-07-05
Information query
IPC分类: