The 1 light band represents a flatness of 0.00029mm! The surface is finished through various polishing processes.
We would like to introduce the "Light Band" that we handle. It is composed of using "optical flats" and "monochromatic light" to measure the flatness of specimens. A "Light Band" that is straight, parallel, and not too wide can be considered flat. 【Features】 ■ Composed of using "optical flats" and "monochromatic light" to measure the flatness of specimens ■ One Light Band represents a flatness of 0.00029mm ■ The surface is finished through various polishing processes ■ When considered geometrically, it can be divided into three components: roughness, waviness, and shape *For more details, please refer to the PDF document or feel free to contact us.
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Kitagawa Gresstech Co., Ltd. was established through the merger of System Seiko Co., Ltd. and Kemet Japan Co., Ltd. By combining the technology cultivated by System Seiko in HDD polishing equipment with the know-how developed by Kemet Japan in polishing consumables and contract processing for semiconductors and electronic components, we aim to strengthen our sales and development capabilities and further expand our business.