background image

soldering & handling

Copyright © 2008-2017 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree

®

 and XLamp

®

 are 

registered trademarks and the Cree logo is a trademark of Cree, Inc. This document is provided for informational purposes only and is not a warranty or 

a specification. For product specifications, please see the data sheets available at www.cree.com. For warranty information, please contact Cree Sales 

at [email protected]. Other trademarks, product and company names are the property of their respective owners and do not imply specific product and/

or vendor endorsement, sponsorship or association.

Cree, Inc.

4600 Silicon Drive

Durham, NC 27703

USA Tel: +1.919.313.5300

www

.C

re

e.

CO

m

/Xl

A

mp

C

LD

-A

P

16

 r

ev 1
0A

Cree

®

 XLamp

®

 XR Family LEDs

TabLE oF ConTEnTs

Handling XLamp

®

 Xr Family LeDs ...........................................2

Circuit Board Preparation & Layouts ........................................3
Case Temperature (T

s

) Measurement Point ............................3

Notes on Soldering XLamp

®

 Xr Family LeDs .........................4

XLamp

®

 XR Family LED Reflow Soldering Characteristics

 .....6

Moisture Sensitivity ..................................................................7

Low Temperature Operation

 .....................................................8

Chemicals & Conformal Coatings

 ............................................8

Assembly Storage & Handling ..................................................9
Tape and reel ......................................................................... 10
Packaging and Labels............................................................ 11

inTRoDuCTion

This application note applies to XLamp

®

 XR family LEDs, which 

have order codes in the following format.

Xrxxxx-xx-xxxx-xxxxxx

This application note explains how XLamp XR family LEDs and 
assemblies containing these LEDs should be handled during 
manufacturing. Please read the entire document to understand 
how to properly handle XLamp XR family LEDs.

Summary of Contents for XLamp XR Series

Page 1: ...4600 Silicon Drive Durham NC 27703 USA Tel 1 919 313 5300 www cree com Xlamp CLD AP16 rev 10A Cree XLamp XR Family LEDs Table of Contents Handling XLamp XR Family LEDs 2 Circuit Board Preparation Lay...

Page 2: ...s on the LED lens Never touch the optical surface with fingers or sharp objects The LED lens surface could be soiled or damaged which would affect the optical performance of the LED Cree recommends al...

Page 3: ...ared and or cleaned according to the manufacturer s specifications before placing or soldering XLamp XR family LEDs onto the PCB The diagram below shows the recommended PCB solder pad layout for XLamp...

Page 4: ...oduct and or vendor endorsement sponsorship or association 4 XLamp XR Family LED Soldering Handling Notes on Soldering XLamp XR Family LEDs XLamp XR family LEDs are designed to be reflow soldered to a...

Page 5: ...tomated dispensing system or a solder stencil printer is recommended Cree has seen positive results using solder thickness that results in a 4 mil 102 m bond line i e the solder joint thickness after...

Page 6: ...EDEC J STD 020C using the parameters listed below As a general guideline Cree recommends that users follow the recommended soldering profile provided by the manufacturer of the solder paste used Note...

Page 7: ...fter opening the MBP The humidity indicator card shows that the humidity has not reached 10 The humidity indicator card shows that the humidity level has exceeded 30 Once the MBP is opened XLamp XR C...

Page 8: ...nufacturing activities For a complete and current list of recommended chemicals conformal coatings and harmful chemicals consult Cree s Chemical Compatibility Application Note The video at www youtube...

Page 9: ...mpany names are the property of their respective owners and do not imply specific product and or vendor endorsement sponsorship or association 9 XLamp XR Family LED Soldering Handling Assembly Storage...

Page 10: ...are the property of their respective owners and do not imply specific product and or vendor endorsement sponsorship or association 10 XLamp XR Family LED Soldering Handling Tape and Reel All Cree carr...

Page 11: ...sponsorship or association 11 XLamp XR Family LED Soldering Handling Packaging and Labels The diagrams below show the packaging and labels Cree uses to ship XLamp XR family LEDs XLamp XR family LEDs...

Reviews: