Copyright © 2011-2019 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree
®
is a registered trademark and the Cree logo is a trademark of Cree, Inc.
17
HIGH‑BRIGHTNESS LED SOLDERING & HANDLING
•
Items to notice after opening the bag:
1.
Check the color of the humidity‑indication card (30% RH) at the time of opening the vacuum‑sealed bag. If the color is slight
green or blue, baking is required before use.
2. Record the date and time on the reel.
3.
The product should be used within the MSL level floor time.
4.
If SMD products can’t be used within the MSL level floor time, they should be re‑packed in a vacuum‑sealed bag. Before attempting
to use again, baking is required.
•
Baking is required when the following conditions occur:
1. Shelf life has expired (over 12 months).
2. The vacuum-sealed bag has an air leak.
3.
The humidity‑indication card has color change at 30% RH at the time of opening the vacuum‑sealed bag.
4. The vacuum-sealed bag has been opened, but the steps listed under “Notice items after opening the bag” (above) have not been
followed.
Color change
Normal
14/15
3. The product should be used within MSL level floor time.
4.
If SMD products can’t be used up within
MSL level floor time, they should be re-packed by vacuum-sealed bag. Before
attempting to use again, baking is required.
Baking is required when the following conditions occur
1. Shelf life is expired (Over 12 months).
2. The vacuum-sealed bag has an air leak.
3. The humidity-indication card has color change at 30%RH, at the time of opening the vacuum-sealed bag.
4. The vacuum-sealed bag is opened, but the steps listed under
“Notice items after opening the bag”
(above) have not
been followed.
Baking method
1.
The SMD LED should not be baked within the packaging bag. The baking condition is 80ºC
±5ºC
(Max)
for 24 hours.
The oven door should not be opened frequently during baking process.
2.
Refer to the photo below for a baking model that can help avoid reel deformation.
3.
Re-baked products should cool down to 40 ºC in the oven before being removed for use.
6. Electrostatic Discharge and Electrical Overstress
Electrostatic discharge (ESD) or electrical overstress (EOS) may damage SMD LED.
Precautions such as ESD wrist strap, ESD shoe strap or antistatic gloves must be worn whenever handling of SMD LED.
For small reel
For large reel