Fallen dust counter for investigating attached debris, foreign objects, and fallen dust.
NCC Corporation
A special measuring device that can measure falling dust, not floating dust! It classifies and counts falling dust particles larger than 10μm.
What is a Falling Dust Counter? A falling dust counter is a device that measures the amount of dust and foreign substances (falling dust) that adhere to the surface of products. By measuring not only the tiny particles suspended in the air but also the larger particles (10μm to 100μm) that adhere to products and cause defects, it is possible to identify foreign substances that lead to defects and implement countermeasures. Features of the Falling Dust Counter ■ Measurement of Large Particles: Measures large particles (falling dust) that are 10μm or larger, which cannot be measured by conventional particle counters. ■ Classification Function: Classifies falling dust by size and displays the count. Helps understand the size of dust and foreign substances, contributing to identifying the cause. ■ Rapid Measurement: Measurement time is quick, approximately within 40 to 50 seconds. ■ Compliance with ISO14644-17: Complies with ISO14644-17 established in February 2021. It can serve as a direct management indicator for large particles that cause defects. For quality improvement and yield enhancement, please consider introducing a falling dust counter.
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basic information
The falling dust counter samples with silicon wafers and is a measurement device specialized for the classification and counting of falling dust particles ranging from 10μm to 100μm. 【Specifications】 ■ Minimum measurable particle size: 10μm ■ Particle size classification: 10μm, 30μm, 50μm, and values can be set arbitrarily within the range of 11μm to 99μm *1) ■ Compatible wafer sizes: 4 inches, 2 inches *2) ■ Maximum measurement area: φ80m, φ30mm ■ Trimming function: Available ■ Display switching: Available (classification display possible) *1) The threshold set at arbitrary classifications is derived from the calibration curve and does not guarantee counting efficiency. *2) Counting efficiency is guaranteed only for the 4-inch area; it is not guaranteed for the 2-inch area, which is limited in size. ※ Foreign objects such as hair larger than 100μm are not suitable for sampling with silicon wafers due to their shape and weight, so for investigating larger sizes of dust and foreign objects, the 'Dusker 100 BLACK' is recommended.
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We will respond to such concerns! ◯ Despite managing in a class 1 million cleanroom, foreign matter adhesion does not decrease. ◯ Even with particle counters, there is no correlation with defects. ◯ Struggling to reduce the transfer of contaminants from clothing and other items. ◯ Want to investigate the adhesion of debris during transport in ovens and conveyors. ◯ Want to check if ionizers are preventing the adhesion of debris.
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| Model number | overview |
|---|---|
| DTSP10-03 | Would you like to measure dust in the work environment with a falling dust counter? By measuring coarse particles, it can help identify and address the causes of defects on-site. |
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Company information
Since its establishment in 1958, the company has focused on industrial paints and fine chemical products. In 1964, it established Minami-Shin Custom Co., Ltd. (now CC-G Co., Ltd.) as a research factory, where it accumulated knowledge and built expertise in specialized areas by using its own products. This accumulated know-how has been recognized, leading to an expansion of the market throughout Nagano Prefecture, while simultaneously, customer requests have become increasingly diverse. The fine chemical sector, including industrial chemicals and chemical products, has evolved to include high-tech materials such as electronic materials, as well as efficient production and recycling systems to handle them. The establishment of a consistent supply system for hazardous and highly toxic materials, as well as the addition of functions for paint color matching, has also been driven by customer needs. Additionally, in response to requests from local customers, the company has ventured into construction fields utilizing chemical methods and chemical construction materials, demonstrating an advisory function from a comprehensive perspective that differs from traditional trading companies.
