technical ceramic solutions

Products

138 × 190 × 0.635 mm Aluminum Nitride Substrate

The 138 × 190 × 0.635 mm aluminum nitride (AlN) substrate is a large format ceramic master sheet designed for downstream ceramic processing applications. It supports customers requiring stable surface quality, dimensional consistency and repeatable production before singulation into finished ceramic substrates.

138×190×0.635mm Aluminum Nitride Substrate

With excellent thermal conductivity,electrical insulation capability and dimensional stability,AlN substrates are widely used in power electronics,thermal management and semiconductor related applications.

Key Product Highlights

– Large format master sheet:138 × 190 mm panel size
– Thickness:0.635 mm
– Stable surface condition for metallization and processing
– Low warpage and good lot-to-lot consistency

Applications

– DPC Metallization: Full panel sputtering, plating and photolithography processes.
– Thick Film Processing: Screen printing, firing and laser trimming applications.
– Thin Film Processing: Deposition and patterning processes.
– DBC / AMB: Power electronic substrate manufacturing.
– Laser Cutting: Precision cutting into custom ceramic substrates.

Aluminum Nitride Ceramic Property:

Item Testing Conditions Unit AlN
AN-170
Material AlN
Appearance Light cyan
Surface Roughness Ra μm 0.1~0.75
Density g/cm³ ≥3.3
Physical Properties Bending Strength Three-Point Bending MPa ≥400
Vickers Hardness Load of 4.9 GPa ≥1000 HV0.2
Water Absorption Rate %
Thermal Properties Thermal Conductivity 25°C W/(m·K) ≥170
Linear Coefficient of Thermal Expansion 25°C-500°C ×10⁻⁶/°C 4~6
Thermal Shock Resistance 800°C Time ≥10
Specific Heat J/(kg·K) 720
Electrical Properties Dielectric Constant 1 MHz / 25°C 8~9
Dielectric Loss 1 MHz / 25°C ×10⁻⁴ ≤3
Volume Resistivity 25°C Ω·cm >10¹⁴
Breakdown Voltage kV/mm >17
Optical Properties Reflectance Reflectance Meter
Whiteness Whiteness Meter

Why Choose INNOVACERA

INNOVACERA provides advanced ceramic materials and precision processing solutions for global industrial customers. Our engineering team supports material selection, surface requirements, dimensional control and customized ceramic solutions.

Contact INNOVACERA for aluminum nitride substrate selection, technical evaluation and customized ceramic solutions.


Declaration: This is an original article of INNOVACERA®. Please indicate the source link when reprinting: https://www.innovacera.com/product/138x190x0-635mm-aluminum-nitride-substrate.

FAQ

The 138 × 190 × 0.635 mm Aluminum Nitride (AlN) master sheet (Grade AN-170) is designed for downstream ceramic processing with stable dimensional consistency and low warpage. Its key technical specifications include:
Thermal Conductivity: ≥ 170 W/(m·K) (at 25°C)
Bending Strength: ≥ 400 MPa
Breakdown Voltage: > 17 kV/mm
Surface Roughness: Ra 0.1–0.75 μm
As a professional advanced ceramic manufacturer, INNOVACERA provides custom surface finishing, tight dimensional control, and engineering support for global customers requiring high-precision AlN ceramic solutions.

Large format 138 × 190 × 0.635 mm AlN substrates are widely used in power electronics, semiconductor packaging, and thermal management, specifically for:
DPC Metallization: Full panel sputtering, electroplating, and photolithography.
DBC & AMB Packaging: Base material for direct bonded copper and active metal brazing substrates.
Thick & Thin Film Processing: Screen printing, firing, laser trimming, and thin-film deposition.
Laser Precision Cutting: Singulation into custom-sized finished ceramic substrates.
AlN is preferred because it pairs high thermal conductivity (≥170 W/m·K) with exceptional electrical insulation (>10¹⁴ Ω·cm) and a coefficient of thermal expansion (4–6 ×10⁻⁶/°C) closely matching silicon and semiconductor chips.

Enquiry