SiC Wafer Portfolio
4H, 4° off-axis, n-type SiC wafers (substrates)
Polished Wafer is a thin disc-shaped single crystal silicon carbide product manufactured from high-purity
SiC crystals by physical vapor transport, which are subsequently sliced, polished and cleaned.
It is produced in 100mm & 150mm diameters and are used in the manufacture of high power electronic devices
such as Diodes, MOSFETs.
SiC epitaxial wafer (n-type or p-type)
Epitaxial Wafer is made by adding multi-micrometer thick single silicon carbide crystal layers on top of a polished wafer.
Precise control of thickness, doping (carrier concentration) and defect density is required to enable high yielding
power devices from a semiconductor fabrication facility.
The range of epi products produced includes single-layer or multilayer n-type and p-type epitaxy.
Schottky Diode, Pin Diodes and Switches, High Current and Voltage MOSFETs / JFETs / BJTs
Prime Grade Portfolio
All SiC wafers in SK Siltron CSS’s 100 mm and 150 mm Prime Grade portfolios deliver consistently excellent mechanical
characteristics to ensure compatibility with existing and developing device fabrication processes.
SiC wafers offer an attractive option for balancing performance and cost when designing simpler
SiC power electronic components,such as Schottky or Junction Barrier Schottky diodes,
with low to medium current ratings.
- -100 mm Prime Standard: MPD ≤ 0.5 cm-2
- -150 mm Prime Standard: MPD ≤ 1 cm-2
SiC wafers deliver more stringent tolerances for defects, making them suitable for more demanding
SiC devices like pin diodes or switches, and metal oxide semiconductor field effect transistors (MOSFETs).
- - 100 mm Prime Select: MPD (≤ 0.2 cm-2), TSD (≤ 500 cm-2), BPD (≤ 800 cm-2)
- - 150 mm Prime Select: MPD (≤ 0.5 cm-2), TSD (≤ 300 cm-2), BPD (≤ 5,000 cm-2)
SiC wafers deliver the lowest defect densities and a tightened wafer resistivity distribution
for the design of today's most advanced high-power SiC electronic devices, including MOSFETs
junction field effect transistors (JFETs), and bipolar junction transistors (BJTs).
In addition, the superior substrate quality can benefit high-voltage (3.3 kV and greater)
and high-current device designs.
- - 100 mm Prime Ultra: MPD (≤ 0.1 cm-2), TSD (≤ 300 cm-2) and BPD (≤ 500 cm-2)
- - 150 mm Prime Ultra: MPD (≤ 0.3 cm-2), TSD (≤ 200 cm-2) and BPD (≤ 3,000 cm-2)