Wet Oxidation System for VCSEL Fabrication

CSI VIXEL-320
Specifications
July 2014
Wet Oxidation System for VCSEL Fabrication
VIXEL-320 is a stand-alone lateral wet
oxidation system intended for the
fabrication of Vertical Cavity Surface
Emitting Lasers. It is an atmosphericpressure oxidation system with in-situ
monitoring of oxide aperture formation.
It accommodates single wafers of up to
150mm (6″) in diameter.
The user selects system parameters (N2
flow, water temperature), and oxidation
parameters (time, chamber temperature).
Maximum allowed wafer temperature is
500ºC. Typical oxidation temperature
range is ~ 380-440 ºC.
In-situ oxidation monitoring is done by
an infrared optical microscope that is
focused on VCSELs or test structures.
Typically, the oxidation duration is
selected as an upper limit in the
software, while the operator monitors the
oxidation progress. The process stops
either by the operator when the desired
aperture size is achieved, or by the
system once the maximum duration is
reached.
Sysem installations are currently limited
to the United States. International
installations will be avialable in the first
quater of 2015.
For additional information please contact
[email protected]
VIXEL-320’s user interface shows system parameters and session information including a live
image of the aperture size. All session information may be stored for future reference.
CSI California Scientific, Inc.
830 Stewart Drive, Sunnyvale, CA 94085. TEL: (408) 236-2035 www.californiascientific.com
System Specifications:
Parameter
Wafer Size
Oxidation Rate
Temperature Range
Temperature Uniformity
Oxidation Uniformity
Heating Rate
Cooling Rate
Oxidation Start/Stop Lag
Maximum Throughput
System Dimensions
Length
Width
Height
System Weight
Min
Typ
0.5-1.0
420
Max
Unit
Comment
150
mm
Up to 6″
Typical, Recommended
500
µm/min
ºC
ºC
± 2.5
± 0.5
1
1
12
1
µm
ºC/s
ºC/s
s
Wafer/hr
36/91
24/61
53/135
90/200
in/cm
in/cm
in/cm
Kg/lb
Installation Requirements:
• 110V and 220V electrical outlets
• High purity house or bottled dry
nitrogen
• DI water line
• Low volume exhaust
Over a 150mm diameter wafer
Typical, depends on many factors
Recommended Rate
Average, down to 200ºC
< 0.2µm w/o compensation
Limited by temperature ramping
California Scientific manufactures
optoelectronic fabrication and test
equipment for the scientific community.
CSI California Scientific, Inc.
830 Stewart Drive, Sunnyvale, CA 94085. TEL: (408) 236-2035 www.californiascientific.com