UltraThin™ LEDs
CxxxUT230-S0002
Cree’s UltraThin LEDs combine highly efficient InGaN materials with Cree’s proprietary G•SiC
®
substrate to deliver
superior price/performance for blue and green LEDs. These vertically structured LED chips are small in size and
require a low forward voltage. Cree’s UT™ series chips are tested for conformity to optical and electrical specifications
and the ability to withstand 1000 V ESD. Applications include keypad backlighting where sub-miniaturization and
thinner form factors are required.
FEATURES
•
•
Small Chip – 230 x 230 x 85 μm
UT LED Performance
–
–
–
•
5.5 mW min. (455–475 nm) Blue
2.5 mW min. (500-510 nm) Traffic Green
2.5 mW min. (520-535 nm) Green
APPLICATIONS
•
•
•
•
Mobile Phone Keypads
Audio Product Display Lighting
Mobile Appliance Keypads
Automotive Applications
Low Forward Voltage
–
2.9–3.0 V Typical at 5 mA
•
•
Single Wire Bond Structure
Class 2 ESD Rating
CxxxUT230-S0002 Chip Diagram
Top View
G•SiC LED Chip
230 x 230 μm
Mesa (junction)
176 x 176 μm
Gold Bond Pad
105 μm Diameter
Bottom View
SiC Substrate
Bottom Surface
150 x 150 μm
SiC Substrate
h = 85 μm
Backside
Metallization
80 x 80 μm
Die Cross Section
InGaN
Anode (+)
.E
CPR3CD Rev
Data Sheet:
Cathode (-)
Subject to change without notice.
www.cree.com
Maximum Ratings at T
A
= 25°C
Notes &3
DC Forward Current
Peak Forward Current (1/10 duty cycle @ 1 kHz)
LED Junction Temperature
Reverse Voltage
Operating Temperature Range
Storage Temperature Range
Electrostatic Discharge Threshold (HBM)
Note 2
Note 2
CxxxUT230-S0002
30 mA
100 mA
125°C
5V
-40°C to +100°C
-40°C to +100°C
1000 V
Class 2
Note 3
Electrostatic Discharge Classification (MIL-STD-883E)
Typical Electrical/Optical Characteristics at T
A
= 25°C, If = 5 mA
Part Number
Forward Voltage (V
f
, V)
Min.
C460UT230-S0002
C470UT230-S0002
C505UT230-S0002
C527UT230-S0002
Mechanical Specifications
Description
P-N Junction Area (μm)
Top Area (μm)
Bottom Area (Substrate) (μm)
Chip Thickness (μm)
Au Bond Pad Diameter (μm)
Au Bond Pad Thickness (μm)
Back Contact Metal Area (μm)
2.7
2.7
2.7
2.7
Typ.
2.9
2.9
2.9
3.0
Max.
3.1
3.1
3.2
3.2
Reverse Current
[I(Vr=5V), μA]
Max.
1
1
1
1
Full Width Half Max
(λ
D
, nm)
Typ.
21
22
30
35
CxxxUT230-S0002
Dimension
176 x 176
230 x 230
150 x 150
85
105
1.2
80 x 80
Tolerance
± 25
± 25
± 25
± 10
-5, +15
± 0.5
± 25
Notes:
1.
2.
3.
4.
Maximum ratings are package dependent. The above ratings were determined using a T-1 3/4 package (with Hysol OS4000
epoxy) for characterization. Ratings for other packages may differ. The forward currents (DC and Peak) are not limited by the die
but by the effect of the LED junction temperature on the package. The junction temperature limit of 125°C is a limit of the T-1
3/4 package; junction temperature should be characterized in a specific package to determine limitations. Assembly processing
temperature must not exceed 325°C (< 5 seconds).
Product resistance to electrostatic discharge (ESD) according to the HBM is measured by simulating ESD using a rapid avalanche
energy test (RAET). The RAET procedures are designed to approximate the minimum ESD ratings shown. The ESD classification of
Class 2 is based on sample testing according to MIL-STD-883E.
All products conform to the listed minimum and maximum specifications for electrical and optical characteristics when assembled
and operated at 5 mA within the maximum ratings shown above. Efficiency decreases at higher currents. Typical values given
are within the range of average values expected by manufacturer in large quantities and are provided for information only. All
measurements were made using lamps in T-1 3/4 packages (with Hysol OS4000 epoxy). Optical characteristics measured in an
integrating sphere using Illuminance E.
Caution: To obtain optimum output efficiency, the amount of epoxy used should be characterized based upon the specific
application.
Copyright © 2004-2006 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree,
the Cree logo and G•SiC are registered trademarks, and UltraThin and UT are trademarks of Cree, Inc.
Cree, Inc.
4600 Silicon Drive
Durham, NC 27703
USA Tel: +1.919.313.5300
www.cree.com
2
CPR3CD Rev. E
Standard Bins for CxxxUT230-S0002
LED chips are sorted to the
radiant flux
and
dominant wavelength
bins shown. Sorted die sheets contain die from
only one bin. Sorted die kit (CxxxUT230-S0002)
orders may be filled with any or all bins (CxxxUT230-0xxx)
contained
in the kit. All radiant flux values are measured at If = 20 mA and all dominant wavelength values are measured at If =
5 mA.
C460UT230-S0002
Radiant Flux
8.0 mW
5.5 mW
455 nm
C460UT230-0101
C460UT230-0102
460 nm
Dominant Wavelength
465 nm
C470UT230-S0002
Radiant Flux
8.0 mW
5.5 mW
465 nm
C470UT230-0101
C470UT230-0102
470 nm
Dominant Wavelength
475 nm
C505UT230-S0002
Radiant Flux
5.5 mW
C505UT230-0103
C505UT230-0101
C505UT230-0104
C505UT230-0102
2.5 mW
500 nm
505 nm
Dominant Wavelength
C527UT230-S0002
510 nm
Radiant Flux
5.0 mW
C527UT230-0104
C527UT230-0101
C527UT230-0105
C527UT230-0102
C527UT230-0106
C527UT230-0103
2.5 mW
520 nm
525 nm
530 nm
Dominant Wavelength
535 nm
Copyright © 2004-2006 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree,
the Cree logo and G•SiC are registered trademarks, and UltraThin and UT are trademarks of Cree, Inc.
Cree, Inc.
4600 Silicon Drive
Durham, NC 27703
USA Tel: +1.919.313.5300
www.cree.com
3
CPR3CD Rev. E
Characteristic Curves
These are representative measurements for the UT230 product. Actual curves will vary slightly for the various radiant
flux and dominant wavelength bins.
Forward Current vs Forward Voltage
12.0
30
Wavelength Shift vs Forward Current
527nm
8.0
25
505nm
470nm
20
4.0
Shift (nm)
0.5
1.0
1.5
2.0
2.5
Vf (V)
3.0
3.5
4.0
4.5
5.0
If (mA)
15
0.0
10
-4.0
5
-8.0
0
0.0
-12.0
0
5
10
15
If (mA)
20
25
30
Relative Intensity vs Forward Voltage
140
100
Relative Intensity vs. Peak Wavelength
120
80
Relative Intensity (%)
100
% Relative Intensity
460 nm
505 nm
527 nm
60
80
60
40
40
20
20
0
0
5
10
15
If (mA)
20
25
30
0
350
400
450
500
Wavelength (nm)
550
600
650
Copyright © 2004-2006 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree,
the Cree logo and G•SiC are registered trademarks, and UltraThin and UT are trademarks of Cree, Inc.
Cree, Inc.
4600 Silicon Drive
Durham, NC 27703
USA Tel: +1.919.313.5300
www.cree.com
4
CPR3CD Rev. E
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