We are proud of our top-class technical capabilities among manufacturers of ceramics and high-melting-point metals in terms of both dimensional and geometric accuracy. There is no limit to the precision demanded by our customers, which is becoming more and more sophisticated as time and technology change. In order to keep up with such demands, we are constantly pursuing stable high-preci... (read more)

Where It All Begins for Precision Mechanics (read more)

Download from the URL our documents about Diffusion Bonding Service Examples (read more)

“Each year, the demand for highly precise and intricate machined shapes continues to grow. These shapes are essential for enhancing the performance of the equipment they are integrated into.
In addition to our traditional precision machining capabilities, we have been actively developing diffusion bonding technology to meet the increasing demand for enhanced performance. Unlik... (read more)

Unveiling the Distinctions Between Cutting and Grinding Techniques

In the intricate world of precision machining, two fundamental techniques, cutting and grinding, play pivotal roles in shaping materials with finesse.

At TOP SEIKO, we elevate the game by customizing our tools, ensuring maximum precision tailored to specific machining needs. Let’s... (read more)

Our new diffusion bonding machine. (read more)

Machining deep holes in exotic materials like MMCs requires a combination of advanced tooling, effective cooling strategies, and a high level of expertise. Overcoming these challenges ensures that precise and high-quality components can be produced from these specialized materials. (read more)

Exploring the Depths: Unveiling the Secrets of Deep Hole Drilling

MMC's exceptional hardness poses a formidable challenge to conventional machining techniques. Our φ0.8 x 300mm deep hole achievement signifies a pivotal triumph over this obstacle.
Through meticulous planning, cutting-edge tooling, and a scrupulous control of machining parameters, we've navigated the intric... (read more)

The oxidation process of a silicon wafer is a crucial step in the production of semiconductor devices. This process is employed to create an insulating layer of silicon dioxide on the wafer’s surface, in order to protect and isolate the subsequent electronic components.

During the oxidation process, the silicon wafer is exposed to an oxygen-rich environment at high temperatu... (read more)

Aluminum nitride (AlN) is a ceramic material with high thermal conductivity and electrical insulation properties. (read more)

Exploring the Power & Possibilities of Diffusion Bonding

Engineering Evolution: Embrace Diffusion Bonding's Power - Uniting Materials for Unmatched Performance and Precision! (read more)

Precision Machining Services for Ultra-Hard Materials

“Many precision parts have been made in common metallic materials. But we machine exotic hard materials and make the same parts.”

With that motto, Top Seiko has specialized in ultra-hard materials such as advanced ceramics, glasses, refractory metals, and newly developed high performance materials like... (read more)

Deep Hole Drilling – Top Seiko Produces Deep, Straight / Tapered Holes in Ultra-Hard Materials. (read more)

Silicon Nitride has the best combination of mechanical, thermal and electrical properties of any technical ceramic material. It is a high performance technical ceramic with high strength, toughness and hardness, and is extremely resistant to thermal shock and impact. It is also an electrically insulating ceramic material. Typically, it is used in applications where high load-bearing capa... (read more)

Aluminum Nitride is a material that has heat resistance, high thermal conductivity, dielectricity, piezoelectricity, low thermal expansion, and so on. Because of those properties, this material is often used for heat sinks, heaters, substrates, and so on. For example, we machine it into a part for semiconductor manufacturing devices or ESC for CVD devices.

You would find more deta... (read more)

Top Seiko has developed the machining technology for Ultra-hard Materials such as ceramics and high density Refractory Metals. Their properties are not only extremely hard, but also very brittle which means easy to be broken and crack.

Providing the Aerospace, Medical, Nuclear Power, and Semiconductor markets with custom fabricated parts, we specialize in comp... (read more)

TopSeiko has been passionate with Micro Machining in brittle materials such as ceramics, glasses, and refractory metals.

With our continuous effort to improve ourmicro-hole drilling capabilities, we can now drill holes as small as 10 micron in ceramics.

Moreover, grooves as small as 50 micron width can be machined in Technical Ceramic materials. Grooves can be straig... (read more)

As an additional business, we are currently exploring techniques of diffusion bonding of nickel.

Learn More about our Services (read more)

“Many precision parts have been made in common metallic materials. But we machine exotic hard materials and make the same parts.”

With that motto, Top Seiko has specialized in ultra-hard materials such as advanced ceramics, glasses, refractory metals, and newly developed high performance materials like composite materials. Based on the machinability characterist... (read more)

We have a new CNC machining center brought in our factory. It is a 3-axis machining center and will be used for machining of ceramics. Although the challenging situation caused by COVID-19 still remains all around the world, the situation in the semiconductor industry has gradually been recovered from a severe recession last year. Thanks to the recovering, we survive. It led to the inves... (read more)

Alumina, also known as Aluminum Oxide, is the most popular ceramic material. It is a relatively low cost ceramic material with good machinability and has a very wide range of applications.

Excellent electrical insulation properties , High temperature resistance , Plasma resistance , High hardness , Wear resistance

Click here to learm more about Alumina and our Custom Machin... (read more)

How much do you know about tungsten? ... (read more)

Tantalum is characterized by its high density, extremely high melting point (3,017°C), and excellent corrosion resistance. Being extraordinarily resistant to heat, it is classified as a refractory metal. (read more)

Silicon Carbide (SiC) – Custom Machined Parts

Silicon Carbide has very good mechanical properties and maintains its strength even at extremely high temperatures. It also has excellent resistance to acids, alkalis and molten salts up to 800°C. These exceptional properties make SiC suitable in applications requiring great resistance to wear, thermal shock and corros... (read more)

Zirconium Dioxide, commonly known as Zirconia, is a high-performance ceramic material which exhibits excellent mechanical properties such as high hardness and fracture toughness. This makes zirconia ideal for a variety of wear resistance applications.

It is difficult to manufacture zirconia in large sizes compared to other oxide materials like alumina. In addition, zirconia is a r... (read more)

Many precision parts have been made in common metallic materials. But we machine exotic hard materials and make the same parts.” (read more)

Top Seiko provides high precision and micro machining services for a wide variety of exotic hard materials. With our well-equipped & maintained facilities combined with our in-depth knowledge and extensive machining experience of hard materials, we manufacture the highest quality custom machined parts. (read more)

Many parts require a hole drilling process. It is one of the most common and basic machining processes. Top Seiko excels at machining holes in high precision. (read more)

Top Seiko excels at deep hole drilling. When you need precision deep holes in ceramics, glasses, and refractory metals, please feel free to contact us! (read more)

We offer material selection services as well.
Our deep knowledge of materials enables us to suggest the best material that will solve your problem. Also, when you do not know what material to use, we would be able to assist you to find the best one according to the application and the properties you need. (read more)

Comparing to common metals, ceramics is a difficult material to machine in 3D shapes. That is the same for tungsten and molybdenum. Top Seiko has been trying machining of 3D shapes of those materials for a decade and achieved in many cases. (read more)

Top Seiko has been processing a variety of machinable ceramics such as Photoveel, Macerite, Macor, Rescor and Shapal Hi-M Soft(aluminum nitride+boron nitride). (read more)

Top Seiko Co., Ltd. specializes in development and manufacturing of high precision machined fused quartz glass parts.

All of our engineers are experienced in precision machining of quartz glass and strive to surpass customer expectations. We offer the comprehensive shapes of quartz glass and fused silica products. (read more)

Top Seiko machines molybdenum as well. Our years of experience in performing machining, grinding, and milling of purity 99.95% Molybdenum, Copper-Molybdenum, and TZM products enables us to meet the challenging needs of our customers. (read more)