Silicon Nitride Ceramic Substrate, 114 mm x 114 mm x 0.4 mmProduct Type: Technical ceramic substrate
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For model selection, accessory matching, platform compatibility or configuration confirmation, contact our technical sales team.
E-MAIL: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR?
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This passive technical ceramic substrate has no stated chemical, electrical, or mechanical hazard in its delivered state. Material stability is limited to the manufacturer-rated use-temperature window, and the supplied surface and dimensional configuration must be confirmed before integration.
- Use-temperature limitation: Maintain service temperature within the manufacturer-rated use-temperature range to preserve the substrate's mechanical and electrical properties.
- Surface configuration confirmation: Confirm polishing, coating, metallization, or custom-shape requirements before integration to avoid mismatches between the supplied substrate and the application requirement.
- Dimensional and packaging verification: Verify size tolerance, thickness requirement, material grade, surface finish, and package format before use to prevent integration or contamination issues.
What is the thermal conductivity of this silicon nitride ceramic substrate and how does it support heat dissipation in high-power electronic assemblies?
The substrate provides a thermal conductivity greater than 60 W/(m·K), which combined with its high electrical insulation (>15 kV/mm breakdown voltage) and mechanical strength (>600 MPa flexural strength), enables efficient heat spreading and reliable thermal management in demanding power electronics and high-temperature applications.
What surface finishing and metallization options are available for this substrate to enable circuit patterning or bonding?
Polishing, coating, metallization, and custom shaping are available upon request for this silicon nitride substrate. These options must be confirmed with the supplier before ordering to ensure compatibility with the intended application, such as direct bond copper (DBC) or thin-film metallization processes.
What is the dielectric breakdown voltage of this 0.4 mm thick silicon nitride substrate for high-voltage isolation applications?
With a specified breakdown voltage greater than 15 kV/mm, the 0.4 mm thick substrate can withstand over 6 kV (0.4 mm × 15 kV/mm = 6 kV) before dielectric failure, making it suitable for high-voltage isolation in power modules and insulating substrates.
This 114 mm x 114 mm x 0.4 mm silicon nitride ceramic substrate delivers flexural strength exceeding 600 MPa and thermal conductivity above 60 W/(m·K), making it suitable for high-stress, high-temperature insulation applications up to 850 °C, though its thin 0.4 mm profile imposes handling fragility and requires careful mechanical support during integration.
Positive
- High flexural and thermal performance: Flexural strength above 600 MPa and thermal conductivity exceeding 60 W/(m·K) enable stable operation under mechanical load and effective heat dissipation in demanding ceramic substrate applications.
- Broad usable temperature range: Operates reliably from -55 °C to 850 °C, accommodating cryogenic to high-temperature laboratory or industrial processes without material degradation.
Trade-offs
- Thin profile handling fragility: At 0.4 mm thickness, the substrate is mechanically delicate and requires careful handling and integration support to avoid fracture during installation or thermal cycling.
- Customization requires lead time: Additional polishing, coating, metallization, or custom shaping must be explicitly specified and confirmed with the supplier, adding procurement steps and potential delays for application-specific needs.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
