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Alumina Ceramic Substrate Product List

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Alumina ceramic substrate

Alumina ceramic substrate

Excellent insulation and corrosion resistance! The thermal conductivity ratio compared to PWB is about 50 times, sintered at approximately 1500°C!

"Alumina ceramic substrates" are products that can create electronic circuit boards using thick film printing technology. They are suitable for heat dissipation and high-reliability substrates. Circuits are formed on this product using thick film printing technology with silver-palladium, silver-platinum, gold, and other materials. They can suppress the temperature rise of electronic components and can be utilized for LED lighting and automotive electronic substrates. 【Features】 ■ Excellent heat resistance: Sintered at approximately 1500°C ■ Excellent heat dissipation: Thermal conductivity about 50 times that of PWB ■ Excellent insulation and corrosion resistance ■ Capable of creating electronic circuit boards using thick film printing technology ■ Suitable for heat dissipation and high-reliability substrates *For more details, please refer to the PDF materials or feel free to contact us.

  • Printed Circuit Board
  • Alumina Ceramic Substrate

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Alumina ceramic substrate for chip resistors

Alumina ceramic substrate for chip resistors

High-reliability substrates born from a unique production system.

This is an alumina ceramic substrate made using high-purity alumina raw materials that excel in electrical and thermal properties, and is produced through advanced processing technology to achieve excellent dimensional accuracy and divisibility. We use high-purity alumina raw materials tailored to specific applications, maintaining stable quality and outstanding characteristics while adhering to a strict quality control system during production. 【Features】 ■ Manufacturing with high precision in thickness and dimensions is possible ■ High-precision through-hole forming and divided groove forming are achievable ■ Can be produced at a relatively low cost compared to other ceramic materials ■ Proposal of "high-reflective ceramics" considering cost-effectiveness ■ Suitable for porous applications with a high porosity rate *For more details, please refer to the catalog or feel free to contact us.

  • Printed Circuit Board
  • Alumina Ceramic Substrate

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Start of sample provision for high-purity alumina substrates (99.6%).

Start of sample provision for high-purity alumina substrates (99.6%).

We have added "high-purity alumina (99.6%) substrates" to our lineup and prepared standard samples (100x100x0.2).

■Alumina Ceramic Substrates Born from Our Unique Production System■ In recent years, the electronics industry, which is accelerating the pace of evolution, has developed tiny chip components that can now fit on the tip of a finger, advancing the information society. Among these, chip resistors are essential basic electronic components for constructing electronic circuits. Our alumina ceramics use high-purity alumina raw materials that excel in electrical and thermal properties, achieving excellent dimensional accuracy and divisibility through advanced processing technology. For other alumina ceramic products as well, we use high-purity alumina raw materials tailored to their applications, maintaining stable quality and excellent characteristics while producing under a strict quality control system.

  • Fine Ceramics
  • Alumina Ceramic Substrate

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Improving thermal conductivity of alumina substrates with printed circuit technology [For mounting power devices!]

Improving thermal conductivity of alumina substrates with printed circuit technology [For mounting power devices!]

Leveraging the strengths of a "ceramics substrate specialized manufacturer," we have achieved "high thermal conductivity of alumina substrates" through via formation technology and printed circuit technology!

In the implementation of power devices, where applications are expanding in areas such as home appliances and EV vehicles, expectations for "thermal conductivity performance of the substrate" are rising significantly. Through the mass production achievements of our flagship high-power LED packages, we have developed technologies to improve heat dissipation performance associated with higher power output. In particular, we have received many inquiries regarding "improving thermal conductivity using general-purpose alumina ceramic substrates compared to aluminum nitride substrates, which excel in thermal conductivity" for ceramic circuit boards. We have achieved improvements in thermal conductivity by applying through-hole processing technology (via formation) and printed circuit technology, filling the via sections of alumina ceramic substrates with "metallic materials," while using general-purpose alumina ceramic substrates. For high-power LED package substrates, we have achieved a thermal conductivity of "369 W/mk" with alumina ceramic substrates. If you are facing challenges with "thermal measures" for ceramic substrate implementation of high-power power devices, please consult with us.

  • Fine Ceramics
  • Circuit board design and manufacturing
  • Other electronic parts
  • Alumina Ceramic Substrate

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Notice of Participation in "Nepcon Japan"

Notice of Participation in "Nepcon Japan"

We plan to exhibit "high flame-retardant silicone resin sheets" and "thick film printed circuit ceramic substrates"!

Our company is a specialized manufacturer of high-performance ceramic substrates. We plan to exhibit at the "Semiconductor Forum (Joint Exhibition)" at "NEPCON Japan" held at Tokyo Big Sight. We will showcase products such as "Alumina and Zirconia (Ceramic Substrates)." We sincerely look forward to your visit. 【Exhibition Overview】 ■ Dates: January 21 (Wed) - January 23 (Fri), 2026 ■ Venue: Tokyo Big Sight ■ Booth Number: E23-42 (East Hall 6) ■ Nearest Stations: - Rinkai Line: Get off at "Kokusai Tenjijo" Station and walk about 7 minutes - Yurikamome: Get off at "Tokyo Big Sight" Station and walk about 3 minutes *For more details, please feel free to contact us.

  • Exhibition
  • Alumina Ceramic Substrate

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High Reflective Alumina Substrate for LED

High Reflective Alumina Substrate for LED

Adopting thick film circuit materials with proven performance in vehicle-mounted circuit boards (such as ECUs)!

The "High Reflective Alumina Substrate for LEDs" is a high-brightness, high-reflection alumina-based substrate that enhances the efficiency of light utilization and further expands the potential of LEDs. Through the development of a high-reflective base substrate and a high-reflective reflector, we have achieved high reflection (99%) even in the short wavelength region. Additionally, there is almost no decrease in reflectivity due to discoloration even after long-term use. 【Features】 ■ High reflection ■ High transmittance resistance ■ High heat resistance ■ High heat dissipation ■ Long lifespan *For more details, please feel free to contact us.

  • Printed Circuit Board
  • Other optical parts
  • Other electronic parts
  • Alumina Ceramic Substrate

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Alumina substrate (ceramic substrate) with excellent adhesion to thick and thin film materials.

Alumina substrate (ceramic substrate) with excellent adhesion to thick and thin film materials.

Alumina substrates (ceramic substrates) with minimal dimensional variation in shape and thickness, small warping, bending, and waviness, possessing stable quality and excellent characteristics.

MARUWA Corporation can develop semiconductor ceramic substrates from raw materials, allowing us to meet a wide variety of requests from upstream to downstream processes, including plain substrates, laminations, and circuit formation. Our alumina substrates (ceramic substrates) have a low porosity due to fine particles, providing an excellent surface condition in terms of smoothness and flatness, as well as superior adhesion to thick and thin film materials. They exhibit minimal dimensional variation in shape and thickness, with low warping, bending, and waviness. Their physical and chemical properties remain stable even in high-temperature environments, and they excel in thermal shock resistance. Additionally, they have a thermal expansion coefficient close to that of silicon and possess high thermal conductivity. 【Features】 ■ Excellent mechanical strength, with high-strength substrates available for increased durability ■ Outstanding oil and chemical resistance ■ High dielectric breakdown voltage, surface resistance, and volume resistance, with a low dielectric constant ■ High reflectivity substrates suitable for LED applications are also available.

  • Printed Circuit Board
  • Alumina Ceramic Substrate

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