AlGaInP Epitaxial

Atecom offers 2", (100) and (111) orientations, Prime / Test grade epi-ready GaAs wafers. Semi- conductive, single-side and double-side epi-ready polishing wafers are available.


AlGaInP Red/Yellow/Yellow Green LED Chip Spec
Growth MOCVD
Diameter 2”,4”
 EPI Wafer Structure
High-Dopant p-GaP level 100 – 300nm
p-GaP Window level 6 – 12um
Emitting Area AlGaInP
DBR DBR
Substrate n-GaAs 350um
 EPI Wafer Parameter
Item Unit Red Yellow Yellow/Green Description
Wave Length (λD) nm 620 ~ 630 587 ~ 592 568 ~ 573 IF =20mA
VF V < 2.2 < 2.2 < 2.2 Forward Voltage
(Iv) Mcd F 70 – 80 F 60-70 F 10 – 15 IF =20mA
G 80 – 90 G 70 – 80 G 15 – 20
H 90 – 100 H 80 – 90 H 20 – 25
I 100 – 110 I 90 – 100 I 30 – 35
J 110 – 120 J 100 – 110 J 35 – 40
K 120 – 130 K > 110 K 40 – 45
L 130 – 140     L > 45
M > 140        
Notes
l  Wave Length and Luminous intensity can be change by customer request.
l  Luminous intensity data is base on the chip size test result that made from ATECOM’s EPI WaferRed Led is base on 12×12mil2,Yellow and Yellow/Green Led are base on 8×8mil2 . The real electronic performance will be fully rely on chip process.