When selecting a material for use in semiconductor, optical or high-temperature experimental scenarios, quartz glass is frequently the optimal solution. This is due to its ability to withstand extreme conditions while maintaining optimal optical performance. Its unique performance combination makes many industrial applications possible, but choosing the wrong type may also result in unexpected problems.

1. Why is quartz glass so important in industrial applications?

(1) Adaptability to extreme environments

Ordinary glass is susceptible to breakage or fogging due to factors such as corrosive gases in semiconductor manufacturing and sudden temperature fluctuations in laboratory settings. Conversely, quartz glass has proven durability in these environments.

(2) Optical and electrical balance

It is essential to observe the reaction process through light while ensuring that current interference is minimized. The light transmittance and insulation properties of quartz glass meet this demand.

(3) High purity

In the fields of chip manufacturing and high-precision optics, the presence of trace impurities in materials can result in product scrapping, emphasizing the importance of effective purity control in high-purity quartz glass.

Due to its unique properties, quartz glass is the optimal material for use in key components such as photolithography machine windows and MEMS sensor substrates.

2. How to select the most suitable type of quartz glass based on requirements?

Purity priority scenarios (chip manufacturing, precision optics): Select high-purity quartz glass, with impurity content below 0.001%.

The processing of complex shapes (such as irregular observation windows and micro-fluid channels): Select fused quartz glass, which is more suitable for precision processing and supports laser cutting and drilling.

With thickness of less than 1mm: Choose the ultra-thin quartz glass to avoid cracking caused by cutting stress.

Long-term high-temperature environment (heat treatment furnaces, high-temperature reaction vessels): It is imperative to confirm whether the long-term service temperature exceeds 1000°C. If this is the case, a special annealing process is required. The degree of surface polishing affects the thermal shock resistance performance. Polished quartz surfaces demonstrate greater resilience to temperature fluctuation impact in comparison to frosted surfaces.

3. The supporting equipment that cannot be ignored in the use of quartz glass

(1) Surface treatment

Optical-grade applications require quartz glass coating to enhance the transmission or reflection rate of specific wavelengths. Different coating layers will affect the light transmittance, wear resistance and anti-fog performance.

(2) Fixture plan

Thermal expansion differences can lead to the failure of traditional fixtures. Special quartz glass fixtures adopt a flexible structure design.

(3) Cleaning system

Ordinary wiping may result in minor scratches, so the use of quartz glass requires the use of cleanroom-grade cleaning tools.

4. Daily maintenance and usage tips for quartz glass

When cleaning, it is important to use a special quartz glass cleaner that does not contain alcohol or acetone, as these can damage the surface structure of the storage environment. It is also essential to control the humidity level to under 40%, as high humidity can lead to water molecules adsorbing on the surface, which can cause performance degradation. Prior to testing, it is crucial to ensure uniform preheating, as any difference in temperature over 600 ℃/min can result in micro-cracks.

The value of quartz glass lies not in its parameters, but in its ability to solve specific problems. From the flatness of the quartz glass substrate to the diameter tolerance of the quartz glass rod, each element has a direct impact on the final result. Initially, it is imperative to clarify the core requirements, followed by the matching of features and, ultimately, the consideration of supporting facilities.