超精密加工
Japan Quality
Ultra-Precision Machining Specialized in Quartz Glass
ATOCK Co., Ltd.
About Us
Our company is a Japanese manufacturer specializing in the production of quartz glass components
used in semiconductor manufacturing processes.
Our factory has an integrated production system that handles every stage of the manufacturing process,
from quartz glass processing (polishing, grinding, cutting, laser processing, and welding) to cleaning,
inspection, measurement, and quality assurance. We fulfill a wide range of processing requests,
including mass production, single-item orders, and short lead times, all through in-house production.
OVER 60 YEARS OF EXPERIENCE
Founded in 1962, we have honed our ultra-precision processing technology for over 60 years.
This expertise, unmatched by others, has earned us inquiries from over 300 clients annually,
including semiconductor device manufacturers, semiconductor manufacturing equipment manufacturers,
private company research institutes, university laboratories, and public research institutions in Japan and overseas.
Do you have any troubles like these?
✓ You need complex machining of quartz glass that conventional suppliers cannot handle.
✓ You are looking for a single partner that can handle polishing, grinding, cutting, laser processing, and welding in-house.
✓ You need prototypes, single-item orders, or short lead-time production.
✓ You need ultra-precision processing for ultra-thin, micro-scale, or large-diameter quartz glass components.
Let us handle it!
Our Strength
Precision and quality require more than just equipment.
Our long experience, extensive know-how, and adaptability allow us to specialize in ultra-thin film polishing, microfabrication, and welding.
PROCESSING TECHNOLOGY INTRODUCTION
1. Ultra-thin Film Polishing
Thickness: 8 μm (~φ20)
2. High-Precision Parallel Plane Polishing
Thickness tolerance: ±1 μm (~φ100)
3. Large-Diameter Polishing
Up to φ3,000 mm (2,142 mm square)
4. Laser Processing, Fine Through-Hole Processing, Cutting
5. Welding
6. Size Reduction Processing
Dicing of various wafers
7. Counterboring (Blind Hole) Processing
8. Film Formation Processing
Film formation by deposition and sputtering
OTHER SHAPE PROCESSING
We also handle various other shape processing, including hole drilling, stepping, and grooving.SPECIFIC PRODUCTS
Quartz cleaning tanks, polished and cut quartz products, wafer quartz boats, quartz furnace core tubes, quartz chambers and bell jars, quartz flanges, quartz tubes, and other processed quartz glass products.
Promotion Video
Service
High-precision polishing, precision grinding, and welding of optical glass, semiconductor elements, and primarily quartz glass.
Main Products
■ Various quartz glass components used in semiconductor and liquid crystal manufacturing processes
(boats, plates, furnace core tubes, carriers, quartz tanks, chambers, bell jars).
■ Polishing, cutting, grinding, laser processing, drilling, and welding of quartz glass.
■ Hole drilling, stepping, grooving, internal/external cutting, and thread cutting of quartz glass, as well as processing into various shapes.
■ Quartz glass substrates (for film formation, measurement, and light transmission).
■ Quartz glass components for synchrotron radiation devices and X-ray equipment for structural analysis.
Message
For any quartz glass needs in the semiconductor industry,
we offer a comprehensive production system that covers everything
from material procurement to the final product.
Please feel free to contact us with any inquiries.
Hiroshi Aoki, President and Representative Director
Contact usCompany
ATOCK Co., Ltd.
2952 Fuchigashira-machi, Mitsukaido, Joso City, Ibaraki 303-0022, Japan
Phone +81-297-23-1121
| Representative | Hiroshi Aoki, President and Representative Director |
| Established | October 1962 |
| Capital | 80 million yen |
| Revenues | 1.5 billion yen |
| Employees | 62 (as of September 2026) |
Corporate Website
https://www.atock.com/engIf you have any questions or concerns about our products, please feel free to contact us.
Contact usATOCK Co., Ltd.
2952 Fuchigashira-machi, Mitsukaido, Joso City, Ibaraki 303-0022, Japan
Phone +81-297-23-1121