GSiC® Technology
XBright LEDs
Cxxx-XB290-S0100-A
Features Applications
XBright Performance
12.0 mW min Blue (460nm and 470nm)
7.0 mW min Green (527nm)
Single Wire Bond Structure
Class II ESD Rating
Outdoor LED Video Displays
Automotive Dashboard Lighting
White LEDs
Backlighting
Description
Cree's XB series of XBright LEDs are the next generation of solid state LED emitters that combine highly
efficient InGaN materials with Cree's proprietary G•SiC® substrate to deliver superior price performance for
high intensity LEDs. These LED chips have a geometrically enhanced Epi-down design to maximize light
extraction efficiency, and require only a single wire bond connection. Cree's XB series chips are tested for
conformity to optical and electrical specifications and the ability to withstand 1000V ESD. These LEDs are
useful in a broad range of applications such as outdoor full motion LED video signs, automotive lighting and
white LEDs, yet can also be used in high volume applications such as LCD backlighting.
Cxxx-XB290-S0100-A Chip Diagram
Top View
GSiC® LED
300 x 300 µ
m
Top Area
200 x 200 µm
Bond Pad
96 µm Diameter
Cathode (-)
h = 250
µm
Backside
Metallization
210 x 210 µm Anode (+)
InGaN
SiC Substrate
Bottom View Die Cross Section
Junction Area
248 x 248 µm
CPR3BC Rev. D
© Cree, Inc. 2003 All Rights Reserved.
GSiC® Technology
XBright LEDs
Cxxx-XB290-S0100-A
Maximum Ratings at TA = 25°C Notes 1&3 Cxxx-XB290-S0100-A
DC Forward Current 30mA
Peak Forward Current (1/10 duty cycle @ 1kHz) 100mA
LED Junction Temperature 125°C
Reverse Voltage 5 V
Operating Temperature Range -40°C to +100°C
Storage Temperature Range -40°C to +100°C
Electrostatic Discharge Threshold (HBM) Note 2 1000V
Electrostatic Discharge Classification (MIL-STD-883E) Note 2 Class 2
Typical Electrical/Optical Characteristics at TA = 25°C, If = 20mA Note 3
Sorted Kit
Part number
Forward Voltage
(Vf, V)
Reverse Current
[I(Vr=5V), µA]
Typ Max Max
C460-XB290-S0100-A 3.6 4.0 10
C470-XB290-S0100-A 3.6 4.0 10
C527XB290-S0100-A 3.7 4.0 10
Mechanical Specifications Cxxx-XB290-S0100-A
Description Dimension Tolerance
P-N Junction Area (µm) 248 x 248 ± 25
Top Area (µm) 200 x 200 ± 25
Bottom Area (Substrate) (µm) 300 x 300 ± 25
Chip Thickness (µm) 250 ± 25
Au Bond Pad Diameter (µm) 96 -5, +15
Au Bond Pad Thickness (µm) 1.2 ± 0.5
Au/Sn Back Contact Metal Area (µm) 210 x 210 ± 25
Au/Sn Back Contact Metal Thickness (µm) 1.7 ± 0.3
Notes:
1) Maximum ratings are package dependent. The above ratings were determined using a T-1 3/4 package (with Hysol OS4000
epoxy) for characterization. Seller makes no representations regarding ratings for packages other than the T-1 3/4 package used
by Seller. The forward currents (DC and Peak) are not limited by the G •SiC 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). See Cree XBright Applications Note for more assembly process information.
2) Product resistance to electrostatic discharge (ESD) is measured by simulating ESD using a rapid avalanche energy test (RAET).
The RAET procedures are designed to approximate the maximum ESD ratings shown. Seller gives no other assurances regarding
the ability of Products to withstand ESD.
3) All Products conform to the listed minimum and maximum specifications for electrical and optical characteristics, when
assembled and operated at 20 mA within the maximum ratings shown above. Efficiency decreases at higher currents. Typical
values given are the average values expected by Seller in large quantities and are provided for information only. Seller gives no
assurances Products shipped will exhibit such typical ratings. All measurements were made using lamps in T-1 3/4 packages
with Hysol OS4000 epoxy. Optical characteristics were measured in an integrating sphere. Illuminance E.
CPR3BC Rev. D
© Cree, Inc. 2003 All Rights Reserved.
GSiC® Technology
XBright LEDs
Cxxx-XB290-S0100-A
Notes (continued):
4) Back contact metal is 80%/20% Au/Sn by weight, with target eutectic melting temperature of approximately 282°C. See XBright
Applications Note for detailed packaging recommendations.
5) Caution: To avoid leakage currents and achieve maximum output efficiency, die attach material must not contact the
side of the chip. See Cree XBright Applications Note for more information.
Standard Bins for XB290:
LED chips are sorted to the radiant flux and dominant wavelength bins. A sorted die sheet contains die from
only one bin. Sorted die kit (Cxxx-XB290-S0100-A) orders may be filled with any or all bins (Cxxx-XB290-
01xx-A) contained in the kit.
15.0mW
12.0mW
15.0mW
12.0mW
Radiant FluxRadiant Flux
C460XB290-0105-A
C460XB290-0101-A
C460XB290-0106-A C460XB290-0107-A C460XB290-0108-A
C470XB290-0104-A
C470XB290-0105-A C470XB290-0106-A C470XB290-0107-A C470XB290-0108-A
C460XB290-S0100-A
C470XB290-S0100-A
455nm 457.5nm 460nm 462.5nm 465nm
C460XB290-0102-A C460XB290-0103-A C460XB290-0104-A
475nm
Dominant Wavelength
Dominant Wavelength
465nm 467.5nm 470nm 472.5nm
C470XB290-0101-A C470XB290-0102-A C470XB290-0103-A
C527XB290-0104-A C527XB290-0105-A C527XB290-0106-A
8.0mW
C527XB290-0101-A C527XB290-0102-A C527XB290-0103-A
7.0mW
520nm 525nm 530nm 535nm
Radiant Flux
C527XB290-S0100-A
Dominant Wavelength
CPR3BC Rev. D
© Cree, Inc. 2003 All Rights Reserved.
CPR3BC Rev. D
© Cree, Inc. 2003 All Rights Reserved.
GSiC® Technology
XBright LEDs
Cxxx-XB290-S0100-A
Characteristic Curves:
These are representative measurements for blue XBright products. Actual curves will vary slightly for the various radiant flux and
dominant wavelength bins.
Wavelength Shift vs Forward Current - All Products
-4.0
-2.0
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
0 5 10 15 20 25 30
If (mA)
Shift (nm)
527nm
470nm
Forward Current vs Forward Voltage - All Products
0
5
10
15
20
25
30
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Vf (V)
If (mA)
Relative Intensity vs Forward Current - All Products
0.0
20.0
40.0
60.0
80.0
100.0
120.0
140.0
0 5 10 15 20 25 30
If (mA)
%
Relative Intensity vs Wavelength - All Products
0%
20%
40%
60%
80%
100%
Wavelength (nm)
Relative Intensity (%)
500
400