Semiconductor Quartz Fabrication, Cleaning, & Repair
Quartz Customization for Your Fabrication Needs
Quartz Tubes
Horizontal Quartz Tubes
Custom Designed per Order (Shown To The Right)
The semiconductor industry is moving towards higher density devices, furnace atmosphere contamination becomes an increasingly critical factor in controlling wafer yields. One potential contaminant is
sodium, which occurs naturally in the silica sand used to make fused quartz. If not removed, this highly
mobile ion can effectively destabilize the electrical characteristics of MOS and bipolar devices. GE224
quartz is made in a special process that eliminates up to 90% of naturally-occurring alkalis. The process
achieves a typical sodium level of 0.1 ppm (vs. a normal level of 0.7 ppm), greatly reduces potassium,
and virtually eliminates lithium. Typically grade GE214 but GE224 quartz is an available option due to
the low alkali fused quartz tubing that is developed for the critical applications of the semiconductor
industry. Similar to grade GE214 with the same exceptional high viscosity and visual standards, grade
GE224 is manufactured using special methods to reduce alkali content to the PPB range.
Vertical Quartz Tubes
The semiconductor industry is moving towards higher density devices, furnace atmosphere contamination becomes an increasingly critical factor in controlling wafer yields. One potential contaminant
is sodium, which occurs naturally in the silica sand used to make fused quartz. If not removed, this
highly mobile ion can effectively destabilize the electrical characteristics of MOS and bipolar devices.
GE224 quartz is made in a special process that eliminates up to 90% of naturally-occurring alkalis.
The process achieves a typical sodium level of 0.1 ppm (vs. a normal level of 0.7 ppm), greatly reduces
potassium, and virtually eliminates lithium. Typically grade GE214 but GE224 quartz is an available
option due to the low alkali fused quartz tubing that is developed for the critical applications of the
semiconductor industry. Similar to grade GE214 with the same exceptional high viscosity and visual
standards, grade GE224 is manufactured using special methods to reduce alkali content to the PPB
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