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MATERIALS FOR SEMICONDUCTOR & OPTICS (WAFER)

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Silicon wafers are used to manufacture integrated circuits (IC / LSI); now is the era of 12" wafer mass production. Also, sapphire substrates for Blue LEDs are expected to see a huge expansion for use in general lighting in the future.

Silicon wafer

Semiconductor grade
Single-crystal silicon ingot (CZ, MCZ, FZ method), single-crystal silicon wafers ( 4", 5", 6", 8", 12" diameters), epitaxial wafers, SOI wafers, diffusion wafers, and Si wafers for test and monitor use
Silicon wafer processing
Reclaim, back-side lapping, dicing
Film deposition
Si02, TEOS, Si3N4, Poly-Si, Al, Cu, BPSG, Low-k, and patterning
Solar grade
Poly or single crystal silicon ingot, Poly or single crystal silicon wafer

Sapphire

Single-crystal sapphire substrate for LD and LED
Sapphire ingot (CZ, Kyropoulos, Verneuil): 2", 3", 4" / C, M, A, R-plane

Compound Semiconductor Materials

Single-crystal wafer
GaAs, GaP, InP
Epitaxial wafer
LPE, MOCVD