Every stage of chip manufacturing – from silicon refining and crystal pulling to wafer slicing and furnace components – relies on our ultra-high-purity graphite for unmatched yield and consistency. As green energy accelerates, our precision grades also drive fuel cells, solar panels and LED diodes. Tokai Carbon: your partner in silicon and clean-tech innovation.

Electronics & Semiconductor
The materials and grades recommended by Tokai Carbon for these applications are shown in the table below:
Application | Extruded/Moulded Graphite | Isotropic Graphite | Tokarec |
CZ Method Si Crystal Pulling | |||
Heaters | G330S | ||
Crucibles | G347, G348 | CC27MFS | |
Heat Shields | G330, G330S or G347S | CC27MFS | |
DSS Method | |||
Backing Plates & Base Plates | G347, G330 | CC28NF | |
Heating Elements | G347, G330 | CC28NF | |
Siemens Process | |||
Heaters | FE250S | G330 or G330S, | |
Chucks | FE250S | ||
Thermal Shields | G140 | CC27MFS | |
Internal and External Shields for STC Reactors | FE250S | SiC coated Graphite | CC27MFS |
Quartz Crucible Production | |||
Electrodes | EE470S | G330 | |
Moulds | EE470S | G330 | |
UMG Silicon Production | |||
Crucibles | EE250, G140 | G330 | |
Moulds | EE250, G140 | G330 | |
LED | |||
Susceptors | SiC coated Graphite |