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Our mission:
Bring the Benefits of Silicon Carbide (SiC) Technology to
Customer-Specific Applications.
How? The
company is producing two new technologies.
First, it is manufacturing
silicon carbide-based, wide band gap, superlattice wafers for high
power electric switching devices and high temperature, high speed
chips. Superlattice is an alloy of different elements used to form a
highly-ordered, crystal lattice structure in semiconductor materials.
Wide band gap semiconductors such as silicon carbide have about three
times the band gap of silicon with corresponding increases in power
density, temperature tolerance, speed and voltage.
Second, C9 plans
to manufacture silicon and silicon carbide wafers of its advanced
Silicon-On-Insulator (SOI) technology, which is used for high speed and
harsh environment microprocessors and control chips.
The problem:
For 40 years, researchers and the government have been trying to
produce silicon carbide semiconductors, which have a Figure of Merit
improvement of 136 over silicon. Figure of Merit is a number that
represents a composite of all the positive features of semiconductor
material.
What has held back the success of silicon
carbide is manufacturing difficulty. The extreme temperatures - 1,600
and 1,800 C – needed to produce SiC result in defects such as
micropipes, which show up as Swiss cheese-like holes in the wafer, and
screw dislocations, which are crystal imperfections throughout the
material.
C9 believes it has the
solution.
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