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CONNECTING THE COMPOUND SEMICONDUCTOR COMMUNITY contents
Volume 15 Number 6
industry & technology
17
20 years and counting for the GaN LED
A commercially viable GaN LED was an incredibly
hard nut to crack that required the development of a
buffer layer and a novel approach to p-type doping.
But 20 years ago it all came together.
20
SiC looks to shine in the sunlight
The predictions of long-term growth in the
photovoltaics market is good news for SiC diode and
transistor manufacturers who are set to benefit,
as these chips can drive up the efficiencies of
converters that transform the DC output from cells
into the AC form needed for the grid.
27
Tightly wrapped
Tube heaters are applied any time where liquid or
gaseous media are being delivered through tubes.
They have a critical impact on process results
when used with thermal sensitive media or
processes and contribute to the extension
of maintenance cycles in the facility.
31
Moore and more: importance of materials
Materials have been a defining factor in terms of
tools and technologies. How do modern day
materials continue that advancement?
34
Development of single-step ICP dry etching
Mode-locked lasers are effective sources of
periodic trans of coherent optical pulses and are
20
fundamental components in a range of optical
communications and spectroscopy applications.
38
GaN: better with defects?
It is taken for granted that lowering the defect
density in GaN-based light emitters improves their
performance. But photoluminescence studies on
GaN powders suggests that defects might actually
be a good thing.
41
Sumitomo snatches the green laser crown
Japanese substrate manufacturer Sumitomo has won
17 41
the race for the first truly green nitride laser with a
531 nm semi-polar device.
news
08 Slower recovery for GaAs industry 13 Painting on a solar cell
08 10
09 RFMD anticipates production revenue 14 Tiny rays of hope
10 Next generation materials 15 New solar power world record
12 Breakthrough green laser 16 Strong position for next growth
14 16
September 2009
www.compoundsemiconductor.net 5
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